Electric Motors
May 2024
Technical bulletin on amending the standards
Webinar – Wednesday June 26, 2024, 11:00-12:00 pm EDT
In April 2024, the Office of Energy Efficiency at Natural Resources Canada (NRCan) updated its Forward Regulatory Plan which identifies its intention to amend Canada’s Energy Efficiency Regulations (the Regulations) to harmonize electric motors with energy efficiency and testing standards in the United States Code of Federal Regulations.
This technical bulletin has been released to initiate the consultation process and to collect stakeholder views on the requirements being considered for electric motors.
Input received during this stage of the process will inform the development of the next amendments considered. In addition, NRCan will undertake a cost-benefit analysis using the best-available Canadian market data to assess the economic and environmental impacts of these updated standards and to ensure Canadian consumers and businesses benefit from their implementation.
The Government of Canada intends to pre-publish a regulatory proposal in the Canada Gazette, Part I, in 2025.
Background
In Canada, electric motors manufactured as of February 3, 1995; June 1, 2016; and June 1, 2017; respectively are subject to the Regulations.
The energy efficiency standards for electric motors save energy and reduce energy costs for Canadians. The efficiency standards also reduce energy-related greenhouse gas emissions and help encourage manufacturers to adopt efficient product designs.
In 2021, NRCan and the United States Department of Energy (U.S. DOE) signed the Memorandum of Understanding Between the Department of Natural Resources of Canada and the Department of Energy of the United States of America Concerning Cooperation on Energy, which acknowledges that both countries will collaborate on new and updated energy efficiency and testing standards where feasible and appropriate.
On October 19, 2022, the U.S. DOE published its updated testing standard in Energy Conservation Program: Test Procedure for Electric Motors; Final rule.
On June 1, 2023, the U.S. DOE published the Energy Conservation Program: Energy Conservation Standards for Electric Motors, Direct Final Rule.
On September 29, 2023, the U.S. DOE published the Energy Conservation Program: Energy Conservation Standards for Electric Motors confirming its direct final rule which expands the scope of electric motors and strengthens energy efficiency standards.
The following changes to the electric motors’ regulations were introduced under the scope of the U.S. DOE Direct Final Rule:
- (a) Medium electric motors, NEMA design A & B, 0.75-373 kW (1–500 hp)
- 0.75-75 kW (1–100 hp); NEMA premium efficiency level (IE3)
- 75-186 kW (100–250 hp); super premium efficiency level (IE4)
- 186-373 kW (250–500 hp); NEMA premium efficiency level (IE3)
- (b) Medium electric motors, NEMA design A & B, 374-559 kW (501–750 hp); NEMA premium efficiency level (IE3)
- (c) Air over medium electric motors (standard frame size) 0.75-186 kW (1-250 hp)
- 0.75-75 kW (1–100 hp); NEMA premium efficiency level (IE3)
- 75-186 kW (100–250 hp); super premium efficiency level (IE4)
- (d) Air over polyphase electric motors (specialized frame size) 0.75-15 kW (1-20 hp)
NRCan is considering amending the Regulations to harmonize with the updated scope, energy efficiency standards, testing standards, and compliance date of the U.S. DOE.
Product description
An electric motor is currently defined in the Regulations as a machine that converts electrical power into rotational mechanical power, including any motor that is incorporated into another product - whether or not that other product is an energy-using product, and that:
- (a) is an electric three-phase induction design;
- (b) is one of the following designs:
- a NEMA design A, B or C with a three- or four-digit NEMA frame number,
- an enclosed NEMA design A, B or C with a NEMA frame number of 56, or
- an IEC design N or H with an IEC frame number of 80 or above;
- (c) has a nominal output power of not less than 0.75 kW (1 horsepower) and not more than 375 kW (500 horsepower);
- (d) has a cage or squirrel-cage design;
- (e) is rated for continuous duty or S1 operation;
- (f) is designed to operate at a single speed;
- (g) has a nominal voltage of not more than 600 V AC;
- (h) has a nominal frequency of 50 Hz, 50/60 Hz or 60 Hz;
- (i) has a two-, four-, six- or eight-pole construction;
- (j) has an open or enclosed construction; and
- (k) has an IP code from 00 to 67.
It does not include any of the following:
- (l) a motor that is cooled by air that is forced over the motor by a fan or blower that is not an integral part of the motor;
- (m) a liquid-cooled motor;
- (n) an inverter-only motor; or
- (o) a motor that is designed to operate continuously only while immersed.
NRCan is considering updating the definition of the electric motors to generally harmonized with the U.S. DOE definition, including expanding the scope to include the following:
- Medium electric motors, NEMA Design A & B, with a capacity of 374-559 kW (501–750 hp)
- Air over medium electric motors (standard frame size) with a capacity of 0.75-186 kW (1-250 hp), and
- Air over polyphase electric motors (specialized frame size) 0.75-15 kW (1-20 hp) with certain frame sizes.
Where:
- Standard frame size means a motor frame size that aligns with the specifications in NEMA MG 1–2016, section 13.2 for open motors, and NEMA MG 1–2016, section 13.3 for enclosed motors.
- Specialized frame size means an electric motor frame size for which the rated output power of the motor exceeds the motor frame size limits specified for standard frame size.
NRCan is considering the following new definition for electric motors:
An electric motor would be defined as a machine that converts electrical power into rotational mechanical power, including any motor that is incorporated into another product - whether or not that other product is an energy-using product, and that:
- is an electric three-phase induction design
- is built in a three-digit or four-digit NEMA frame size (or IEC metric equivalent), including those designs between two consecutive NEMA frame sizes (or IEC metric equivalent), or an enclosed 56 NEMA frame size (or IEC metric equivalent)
- is one of the following designs:
- a NEMA design A, B or C
- an IEC design N, NE, NEY, NY or H, HE, HEY, HY motor
- has a nominal output power of not less than 0.75 kW (1 HP) and not more than 559 kW (750 HP)
- has a cage or squirrel-cage design
- is rated for continuous duty or S1 operation
- is designed to operate at a single speed
- has a nominal voltage of not more than 600 V AC
- has a nominal frequency of 50 Hz, 50/60 Hz or 60 Hz
- has a two-, four-, six- or eight-pole construction
- has an open or enclosed construction, and
It would not include any of the following:
- liquid-cooled motor
- component sets of a motor
- inverter-only motor, or
- submersible motor (a motor that is designed to operate continuously only while immersed)
Testing standard
NRCan is considering incorporating by reference an NRCan technical standards document (as amended from time to time) that would reproduce the following U.S. DOE testing standard:
- Appendix B to Subpart B, Part 431 of Title 10 to the U.S. Code of Federal Regulations, entitled Uniform Test Method for Measuring the Efficiency of Electric motors.
Energy efficiency standard
NRCan is considering incorporating by reference an NRCan technical standards document (as amended from time to time) that would reproduce the U.S. DOE energy efficiency standards:
- Section 431.25 to Subpart B, Part 431 of Title 10 to the United States Code of Federal Regulations, entitled Energy Conservation Standards and Effective Dates, Tables 8-10.
The energy efficiency standards under consideration for electric motors are summarized in the tables 1-3 below.
| Motor kW/HP | Nominal full-load efficiency (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2 Pole | 4 Pole | 6 Pole | 8 Pole | |||||
| Enclosed | Open | Enclosed | Open | Enclosed | Open | Enclosed | Open | |
| 0.75/1 | 77.0 | 77.0 | 85.5 | 85.5 | 82.5 | 82.5 | 75.5 | 75.5 |
| 1.1/1.5 | 84.0 | 84.0 | 86.5 | 86.5 | 87.5 | 86.5 | 78.5 | 77.0 |
| 1.5/2 | 85.5 | 85.5 | 86.5 | 86.5 | 88.5 | 87.5 | 84.0 | 86.5 |
| 2.2/3 | 86.5 | 85.5 | 89.5 | 89.5 | 89.5 | 88.5 | 85.5 | 87.5 |
| 3.7/5 | 88.5 | 86.5 | 89.5 | 89.5 | 89.5 | 89.5 | 86.5 | 88.5 |
| 5.5/7.5 | 89.5 | 88.5 | 91.7 | 91.0 | 91.0 | 90.2 | 86.5 | 89.5 |
| 7.5/10 | 90.2 | 89.5 | 91.7 | 91.7 | 91.0 | 91.7 | 89.5 | 90.2 |
| 11/15 | 91.0 | 90.2 | 92.4 | 93.0 | 91.7 | 91.7 | 89.5 | 90.2 |
| 15/20 | 91.0 | 91.0 | 93.0 | 93.0 | 91.7 | 92.4 | 90.2 | 91.0 |
| 18.5/25 | 91.7 | 91.7 | 93.6 | 93.6 | 93.0 | 93.0 | 90.2 | 91.0 |
| 22/30 | 91.7 | 91.7 | 93.6 | 94.1 | 93.0 | 93.6 | 91.7 | 91.7 |
| 30/40 | 92.4 | 92.4 | 94.1 | 94.1 | 94.1 | 94.1 | 91.7 | 91.7 |
| 37/50 | 93.0 | 93.0 | 94.5 | 94.5 | 94.1 | 94.1 | 92.4 | 92.4 |
| 45/60 | 93.6 | 93.6 | 95.0 | 95.0 | 94.5 | 94.5 | 92.4 | 93.0 |
| 55/75 | 93.6 | 93.6 | 95.4 | 95.0 | 94.5 | 94.5 | 93.6 | 94.1 |
| 75/100 | 95.0 | 94.5 | 96.2 | 96.2 | 95.8 | 95.8 | 94.5 | 95.0 |
| 90/125 | 95.4 | 94.5 | 96.2 | 96.2 | 95.8 | 95.8 | 95.0 | 95.0 |
| 110/150 | 95.4 | 94.5 | 96.2 | 96.2 | 96.2 | 95.8 | 95.0 | 95.0 |
| 150/200 | 95.8 | 95.4 | 96.5 | 96.2 | 96.2 | 95.8 | 95.4 | 95.0 |
| 186/250 | 96.2 | 95.4 | 96.5 | 96.2 | 96.2 | 96.2 | 95.4 | 95.4 |
| 224/300 | 95.8 | 95.4 | 96.2 | 95.8 | 95.8 | 95.8 | ||
| 261/350 | 95.8 | 95.4 | 96.2 | 95.8 | 95.8 | 95.8 | ||
| 298/400 | 95.8 | 95.8 | 96.2 | 95.8 | ||||
| 336/450 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 373/500 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 410/550 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 447/600 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 487/650 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 522/700 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
| 559/750 | 95.8 | 96.2 | 96.2 | 96.2 | ||||
Text version
Table 1 title is “Energy efficiency standards being considered for NEMA Design A, NEMA Design B and IEC Design N, NE, NEY or NY Motors Electric Motors at 60 Hz, manufactured on or after June 1, 2027”. There are two major vertical columns. The first column provides the motor power in kilowatts and horsepower.
The second column provides the energy efficiency standard labelled as nominal full-load efficiency in percent. The second column (nominal full-load efficiency) is subdivided into four columns that provides motor poles such as 2-pole, 4-pole, 6-pole, and 8-pole efficiency. Each of the pole efficiency columns is further subdivided into enclosed and open motor design efficiency subgroups.
There are thirty rows for the motor power listed, ranging from 0.75 kW/1hp to 559 kW/750 hp.
The 0.75/1 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 77%, in the case of the four-pole both enclosed and open designs, the value is 85.5%, the six-pole, enclosed and open designs both have 82.5% while for the eight-pole, enclosed and open designs the corresponding value is 75.5%.
The 1.1/1.5 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 84%, in the case of the four-pole both enclosed and open designs, the value is 86.5%, the six-pole, enclosed and open designs have 87.5% and 86.5% respectively while for the eight-pole enclosed and open designs the corresponding values are 78.5% and 77% respectively.
The 1.5/2.0 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 85.5%, in the case of the four-pole both enclosed and open designs, the value is 86.5%, the six-pole, enclosed and open designs have 88.5% and 87.5% respectively while for the eight-pole enclosed and open designs the corresponding values are 84.0% and 86.5% respectively.
The 2.2/3.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 86.5% and 85.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 89.5%, the six-pole, enclosed and open designs have 89.5% and 88.5% respectively while for the eight-pole enclosed and open designs, the corresponding values are 85.5% and 87.5% respectively.
The 3.7/5.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 88.5% and 86.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 89.5%, the six-pole, enclosed and open designs, each have a value of 89.5% while for the eight-pole enclosed and open designs, the corresponding values are 86.5% and 88.5% respectively.
The 5.5/7.5 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 89.5% and 88.5% respectively, in the case of the four-pole both enclosed and open designs, the values are 91.7% and 91.0% respectively, the six-pole, enclosed and open designs have 91.0% and 90.2% respectively while for the eight-pole enclosed and open designs, the corresponding values are 86.5% and 89.5% respectively.
The 7.5/10.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 90.2% and 89.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 91.7%, the six-pole, enclosed and open designs have 91.0% and 91.7% respectively while for the eight-pole enclosed and open designs, the corresponding values are 89.5% and 90.2% respectively.
The 11/15 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 91.0% and 90.2% respectively, in the case of the four-pole both enclosed and open designs, the values are 92.4% and 93.0% respectively, the six-pole, enclosed and open designs have a value of 91.7 each while for the eight-pole enclosed and open designs, the corresponding values are 89.5% and 90.2% respectively.
The 15/20 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.0%, in the case of the four-pole both enclosed and open designs, the value is 93.0%, the six-pole, enclosed and open designs have 91.7% and 92.4% respectively while for the eight-pole enclosed and open designs the corresponding values are 90.2% and 91.0% respectively.
The 18.5/25 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.7%, in the case of the four-pole both enclosed and open designs, the value is 93.6%, the six-pole, enclosed and open designs have a value of 93.0% each while for the eight-pole enclosed and open designs the corresponding values are 90.2% and 91.0% respectively.
The 22/30 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.7%, in the case of the four-pole both enclosed and open designs, the values are 93.6% and 94.1% respectively, the six-pole, enclosed and open designs have values of 93.0% and 93.6% respectively while for the eight-pole enclosed and open designs the corresponding value is 91.7% for each of them.
The 30/40 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 92.4%, in the case of the four-pole both enclosed and open designs, the value is 94.1%, the six-pole, enclosed and open designs have a value of 94.1% each while for the eight-pole enclosed and open designs the corresponding value is 91.7% for each of them.
The 37/50 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.0%, in the case of the four-pole both enclosed and open designs, the value is 94.5%, the six-pole, enclosed and open designs have a value of 94.1% each while for the eight-pole enclosed and open designs the corresponding value is 92.4% for each of them.
The 45/60 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.6%, in the case of the four-pole both enclosed and open designs, the value is 95.0%, the six-pole, enclosed and open designs have a value of 94.5% each while for the eight-pole enclosed and open designs the corresponding value is 92.4% for each of them.
The 55/75 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.6%, in the case of the four-pole both enclosed and open designs, the values are 95.4% and 95.0% respectively, the six-pole, enclosed and open designs have a value of 94.5% each while for the eight-pole enclosed and open designs the corresponding values are 93.6% and 94.1% respectively.
The 75/100.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.0% and 94.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have a value of 95.8% each while for the eight-pole enclosed and open designs, the corresponding values are 94.5% and 95.0% respectively.
The 90/125.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.4% and 94.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have a value of 95.8% each while for the eight-pole enclosed and open designs, the corresponding value is 95.0% for each of them.
The 110/150.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have values of 96.2% and 95.8% respectively while for the eight-pole enclosed and open designs, the corresponding value is 95.0% for each of them.
The 150/200.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the values are 96.5% and 96.2% respectively, the six-pole, enclosed and open designs have a value of 96.2% and 95.8% respectively while for the eight-pole enclosed and open designs, the corresponding values are 95.4% and 95.0% respectively.
The 186/250.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 96.2% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the values are 96.5% and 96.2% respectively, the six-pole, enclosed and open designs have a value of 96.2% each while for the eight-pole enclosed and open designs, the corresponding value is 95.4% each.
The 224/300.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole enclosed and open designs, the values are 96.2% and 95.8% respectively, and the six-pole, enclosed and open designs have a value of 95.8% each.
The 261/350.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole enclosed and open designs, the values are 96.2% and 95.8% respectively, and the six-pole, enclosed and open designs have a value of 95.8% each.
The 298/400.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have a value of 95.8% each and in the case of the four-pole enclosed and open designs, the values are 96.2% and 95.8% respectively.
The 336/450.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 373/500.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 410/550.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 447/600.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 487/700.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 522/500.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
The 559/750.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 96.2% respectively and in the case of the four-pole enclosed and open designs, the value is 96.2% each.
| Motor kW/HP | Nominal full-load efficiency (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2 Pole | 4 Pole | 6 Pole | 8 Pole | |||||
| Enclosed | Open | Enclosed | Open | Enclosed | Open | Enclosed | Open | |
| 0.75/1 | 77.0 | 77.0 | 85.5 | 85.5 | 82.5 | 82.5 | 75.5 | 75.5 |
| 1.1/1.5 | 84.0 | 84.0 | 86.5 | 86.5 | 87.5 | 86.5 | 78.5 | 77.0 |
| 1.5/2 | 85.5 | 85.5 | 86.5 | 86.5 | 88.5 | 87.5 | 84.0 | 86.5 |
| 2.2/3 | 86.5 | 85.5 | 89.5 | 89.5 | 89.5 | 88.5 | 85.5 | 87.5 |
| 3.7/5 | 88.5 | 86.5 | 89.5 | 89.5 | 89.5 | 89.5 | 86.5 | 88.5 |
| 5.5/7.5 | 89.5 | 88.5 | 91.7 | 91.0 | 91.0 | 90.2 | 86.5 | 89.5 |
| 7.5/10 | 90.2 | 89.5 | 91.7 | 91.7 | 91.0 | 91.7 | 89.5 | 90.2 |
| 11/15 | 91.0 | 90.2 | 92.4 | 93.0 | 91.7 | 91.7 | 89.5 | 90.2 |
| 15/20 | 91.0 | 91.0 | 93.0 | 93.0 | 91.7 | 92.4 | 90.2 | 91.0 |
| 18.5/25 | 91.7 | 91.7 | 93.6 | 93.6 | 93.0 | 93.0 | 90.2 | 91.0 |
| 22/30 | 91.7 | 91.7 | 93.6 | 94.1 | 93.0 | 93.6 | 91.7 | 91.7 |
| 30/40 | 92.4 | 92.4 | 94.1 | 94.1 | 94.1 | 94.1 | 91.7 | 91.7 |
| 37/50 | 93.0 | 93.0 | 94.5 | 94.5 | 94.1 | 94.1 | 92.4 | 92.4 |
| 45/60 | 93.6 | 93.6 | 95.0 | 95.0 | 94.5 | 94.5 | 92.4 | 93.0 |
| 55/75 | 93.6 | 93.6 | 95.4 | 95.0 | 94.5 | 94.5 | 93.6 | 94.1 |
| 75/100 | 95.0 | 94.5 | 96.2 | 96.2 | 95.8 | 95.8 | 94.5 | 95.0 |
| 90/125 | 95.4 | 94.5 | 96.2 | 96.2 | 95.8 | 95.8 | 95.0 | 95.0 |
| 110/150 | 95.4 | 94.5 | 96.2 | 96.2 | 96.2 | 95.8 | 95.0 | 95.0 |
| 150/200 | 95.8 | 95.4 | 96.5 | 96.2 | 96.2 | 95.8 | 95.4 | 95.0 |
| 186/250 | 96.2 | 95.4 | 96.5 | 96.2 | 96.2 | 96.2 | 95.4 | 95.4 |
Text version
Table 2 title is “Energy efficiency standards being considered for NEMA design A, NEMA design B and IEC design N, NE, NEY or NY standard frame size air-over electric motors at 60 Hz, manufactured on or after June 1, 2027”.
There are two major vertical columns. The first column provides the motor power in kilowatts and horsepower.
The second column provides the energy efficiency standard labelled as nominal full-load efficiency in percent. The second column (nominal full-load efficiency) is subdivided into four columns that provides motor poles such as 2-pole, 4-pole, 6-pole, and 8-pole efficiency. Each of the pole efficiency columns is further subdivided into enclosed and open motor design efficiency subgroups.
There are twenty rows for the motor power listed, ranging from 0.75 kW/1hp to 186 kW/250 hp.
The 0.75/1 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 77%, in the case of the four-pole both enclosed and open designs, the value is 85.5%, the six-pole, enclosed and open designs both have 82.5% while for the eight-pole, enclosed and open designs the corresponding value is 75.5%.
The 1.1/1.5 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 84%, in the case of the four-pole both enclosed and open designs, the value is 86.5%, the six-pole, enclosed and open designs have 87.5% and 86.5% respectively while for the eight-pole enclosed and open designs the corresponding values are 78.5% and 77% respectively.
The 1.5/2.0 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 85.5%, in the case of the four-pole both enclosed and open designs, the value is 86.5%, the six-pole, enclosed and open designs have 88.5% and 87.5% respectively while for the eight-pole enclosed and open designs the corresponding values are 84.0% and 86.5% respectively.
The 2.2/3.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 86.5% and 85.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 89.5%, the six-pole, enclosed and open designs have 89.5% and 88.5% respectively while for the eight-pole enclosed and open designs, the corresponding values are 85.5% and 87.5% respectively.
The 3.7/5.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 88.5% and 86.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 89.5%, the six-pole, enclosed and open designs, each have a value of 89.5% while for the eight-pole enclosed and open designs, the corresponding values are 86.5% and 88.5% respectively.
The 5.5/7.5 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 89.5% and 88.5% respectively, in the case of the four-pole both enclosed and open designs, the values are 91.7% and 91.0% respectively, the six-pole, enclosed and open designs have 91.0% and 90.2% respectively while for the eight-pole enclosed and open designs, the corresponding values are 86.5% and 89.5% respectively.
The 7.5/10.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 90.2% and 89.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 91.7%, the six-pole, enclosed and open designs have 91.0% and 91.7% respectively while for the eight-pole enclosed and open designs, the corresponding values are 89.5% and 90.2% respectively.
The 11/15 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 91.0% and 90.2% respectively, in the case of the four-pole both enclosed and open designs, the values are 92.4% and 93.0% respectively, the six-pole, enclosed and open designs have a value of 91.7 each while for the eight-pole enclosed and open designs, the corresponding values are 89.5% and 90.2% respectively.
The 15/20 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.0%, in the case of the four-pole both enclosed and open designs, the value is 93.0%, the six-pole, enclosed and open designs have 91.7% and 92.4% respectively while for the eight-pole enclosed and open designs the corresponding values are 90.2% and 91.0% respectively.
The 18.5/25 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.7%, in the case of the four-pole both enclosed and open designs, the value is 93.6%, the six-pole, enclosed and open designs have a value of 93.0% each while for the eight-pole enclosed and open designs the corresponding values are 90.2% and 91.0% respectively.
The 22/30 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 91.7%, in the case of the four-pole both enclosed and open designs, the values are 93.6% and 94.1% respectively, the six-pole, enclosed and open designs have values of 93.0% and 93.6% respectively while for the eight-pole enclosed and open designs the corresponding value is 91.7% for each of them.
The 30/40 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 92.4%, in the case of the four-pole both enclosed and open designs, the value is 94.1%, the six-pole, enclosed and open designs have a value of 94.1% each while for the eight-pole enclosed and open designs the corresponding value is 91.7% for each of them.
The 37/50 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.0%, in the case of the four-pole both enclosed and open designs, the value is 94.5%, the six-pole, enclosed and open designs have a value of 94.1% each while for the eight-pole enclosed and open designs the corresponding value is 92.4% for each of them.
The 45/60 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.6%, in the case of the four-pole both enclosed and open designs, the value is 95.0%, the six-pole, enclosed and open designs have a value of 94.5% each while for the eight-pole enclosed and open designs the corresponding value is 92.4% for each of them.
The 55/75 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 93.6%, in the case of the four-pole both enclosed and open designs, the values are 95.4% and 95.0% respectively, the six-pole, enclosed and open designs have a value of 94.5% each while for the eight-pole enclosed and open designs the corresponding values are 93.6% and 94.1% respectively.
The 75/100.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.0% and 94.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have a value of 95.8% each while for the eight-pole enclosed and open designs, the corresponding values are 94.5% and 95.0% respectively.
The 90/125.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.4% and 94.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have a value of 95.8% each while for the eight-pole enclosed and open designs, the corresponding value is 95.0% for each of them.
The 110/150.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the value is 96.2%, the six-pole, enclosed and open designs have values of 96.2% and 95.8% respectively while for the eight-pole enclosed and open designs, the corresponding value is 95.0% for each of them.
The 150/200.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 95.8% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the values are 96.5% and 96.2% respectively, the six-pole, enclosed and open designs have a value of 96.2% and 95.8% respectively while for the eight-pole enclosed and open designs, the corresponding values are 95.4% and 95.0% respectively.
The 186/250.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 96.2% and 95.4% respectively, in the case of the four-pole both enclosed and open designs, the values are 96.5% and 96.2% respectively, the six-pole, enclosed and open designs have a value of 96.2% each while for the eight-pole enclosed and open designs, the corresponding value is 95.4% each.
| Motor kW/HP | Nominal full-load efficiency (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| 2 Pole | 4 Pole | 6 Pole | 8 Pole | |||||
| Enclosed | Open | Enclosed | Open | Enclosed | Open | Enclosed | Open | |
| 0.75/1 | 74.0 | 82.5 | 82.5 | 80.0 | 80.0 | 74.0 | 74.0 | |
| 1.1/1.5 | 82.5 | 82.5 | 84.0 | 84.0 | 85.5 | 84.0 | 77.0 | 75.5 |
| 1.5/2 | 84.0 | 84.0 | 84.0 | 84.0 | 86.5 | 85.5 | 82.5 | 85.5 |
| 2.2/3 | 85.5 | 84.0 | 87.5 | 86.5 | 87.5 | 87.5 | 84.0 | 86.5 |
| 3.7/5 | 87.5 | 85.5 | 87.5 | 87.5 | 87.5 | 87.5 | 85.5 | 87.5 |
| 5.5/7.5 | 88.5 | 87.5 | 89.5 | 88.5 | 89.5 | 88.5 | 85.5 | 88.5 |
| 7.5/10 | 89.5 | 88.5 | 89.5 | 89.5 | 89.5 | 90.2 | ||
| 11/15 | 90.2 | 89.5 | 91.0 | 91.0 | ||||
| 15/20 | 90.2 | 90.2 | 91.0 | 91.0 | ||||
Text version
Table 3 title is “Energy efficiency standards being considered for NEMA design A, NEMA design B and IEC design N, NE, NEY or NY specialized frame size air-over electric motors at 60 Hz, manufactured on or after June 1, 2027”.
There are two major vertical columns. The first column provides the motor power in kilowatts and horsepower. The second column provides the energy efficiency standard labelled as nominal full-load efficiency in percent. The second column (nominal full-load efficiency) is subdivided into four columns that provides motor poles such as 2-pole, 4-pole, 6-pole, and 8-pole efficiency. Each of the pole efficiency columns is further subdivided into enclosed and open motor design efficiency subgroups.
There are nine rows for the motor power listed, ranging from 0.75 kW/1hp to 186 kW/250 hp.
The 0.75/1 kW/hp motor row has a nominal full-load efficiency for two-pole enclosed designs of 74% and no value for open design, in the case of the four-pole both enclosed and open designs, the value is 82.5%, the six-pole, enclosed and open designs both have 80.0% while for the eight-pole, enclosed and open designs the corresponding value is 74.0%.
The 1.1/1.5 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 82.5%, in the case of the four-pole both enclosed and open designs, the value is 84.0%, the six-pole, enclosed and open designs have 85.5% and 84.0% respectively while for the eight-pole enclosed and open designs the corresponding values are 77.0% and 75.5% respectively.
The 1.5/2.0 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 84.0%, in the case of the four-pole both enclosed and open designs, the value is 84.0%, the six-pole, enclosed and open designs have 86.5% and 85.5% respectively while for the eight-pole enclosed and open designs the corresponding values are 82.5% and 85.5% respectively.
The 2.2/3.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 85.5% and 84.0% respectively, in the case of the four-pole both enclosed and open designs, the values are 87.5% and 86.5% respectively, the six-pole, enclosed and open designs have 87.5% and 86.5% respectively while for the eight-pole enclosed and open designs, the corresponding values are 84.0% and 86.5% respectively.
The 3.7/5.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 87.5% and 85.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 87.5%, the six-pole, enclosed and open designs, each have a value of 87.5% while for the eight-pole enclosed and open designs, the corresponding values are 85.5% and 87.5% respectively.
The 5.5/7.5 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 85.5% and 87.5% respectively, in the case of the four-pole both enclosed and open designs, the values are 89.5% and 88.5% respectively, the six-pole, enclosed and open designs have 89.5% and 88.5% respectively while for the eight-pole enclosed and open designs, the corresponding values are 85.5% and 88.5% respectively.
The 7.5/10.0 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 89.5% and 88.5% respectively, in the case of the four-pole both enclosed and open designs, the value is 89.5% while the six-pole, enclosed and open designs have 89.5% and 90.2% respectively.
The 11/15 kW/hp motor row has a nominal full-load efficiency for two-pole, enclosed and open designs have values of 90.0% and 89.5% respectively and in the case of the four-pole both enclosed and open designs, the value is 91.0% each.
The 15/20 kW/hp motor row has a nominal full-load efficiency for two-pole both enclosed and open designs of 90.2%, and in the case of the four-pole both enclosed and open designs, the value is 91.0% each.
Important dates
These modifications to the Regulations would come into force six months after the date of publication in the Canada Gazette, Part II, and the considered requirements for electric motors would only apply to products manufactured on or after June 1, 2027.
This means that the requirements considered would only apply as of June 1, 2027, or later depending on the date of publication in the Canada Gazette, Part II.
However, any dealers could voluntarily comply with these modifications upon their publication in the Canada Gazette, Part II.
Regulatory pathway
NRCan is considering amending the Regulations through Governor in Council amendment.
The considered changes would be pre-published in the Canada Gazette, Part I, followed by a public comment period. The exact date for final publication in the Canada Gazette, Part II will depend on the number and nature of comments received during the public comment period. Final publications are typically within a year of their initial public comment period. These changes and the timing of publication are subject to decision-making authorities under the Energy Efficiency Act.
Labelling requirements
NRCan is not considering a mandatory EnerGuide labelling requirement for electric motors.
Verification requirements
NRCan is not considering any changes for the verification requirements for electric motors.
These products will continue to carry a third-party verification mark indicating that the product meets the energy efficiency standard and that the information to be reported has been verified.
The verification mark is the mark of a Standards Council of Canada accredited certification body that operates an energy efficiency certification program for the product.
Reporting requirements
Energy efficiency report
NRCan is considering making minors changes to the energy efficiency report requirements to ensure that each motor frequency for electric motors is covered (i.e., 50 Hz, 50/60 Hz and 60 Hz).
The Regulations apply to products imported or shipped inter-provincially for sale or lease in Canada. This report must be submitted, by the dealer, to NRCan before the product is imported into Canada or traded inter-provincially for the first time.
Import report
There is no change to import reporting.
Comments invited
The purpose of this bulletin is to provide stakeholders with the technical detail required to comment on the requirements under consideration for electric motors.
NRCan is specifically interested in getting feedback on:
- The period of manufacture and the early compliance option under consideration.
- The capability and capacity of certification bodies to verify electric motors with the U.S. DOE testing standard.
- The ability of manufacturers to procure a third-party energy efficiency verification within the specified timeline.
- Shipment and energy consumption data sets for electric motors.
It is important to NRCan that we engage the public and stakeholders on amendments to the Regulations. If you are aware of any dealer, manufacturer, importer, retailer, utility provider, small business, consumer group, organization, or representative of a specific group(s) of the population (including, but not limited to, women, 2SLGBTQQIA+ people, persons with disabilities, visible minorities, socio-economic status, residency, housing status, etc.), Indigenous peoples/communities, and/or other person or group that may be interested in participating in the amendment discussion and/or may be negatively impacted by this proposal, please forward them or their representative this bulletin. Please click here to register to our mailing list which is used to notify stakeholders of upcoming amendments, technical bulletins, webinar registrations, official publication in the Canada Gazette, etc.
Additional information on Canada’s Energy Efficiency Regulations including a current list of Standards Council of Canada accredited certification bodies can be found on the Department’s website.
We welcome your comments by September 13, 2024. All correspondence should be forwarded to:
Natural Resources Canada
Office of Energy Efficiency
580 Booth Street
Ottawa, ON, K1A 0E4
E-mail: equipment-equipement@nrcan-rncan.gc.ca
Email subject heading to be: Bulletin – Electric Motors – Moteurs électriques – May 2024 mai
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