Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
CAN CSA C802.1-13 (2018): Minimum Efficiency Values for Electric Motors in Canada
Understanding the Canadian Standard for Motor Energy Efficiency and Compliance Requirements
The CAN CSA C802.1-13 (2018) standard, developed by the Canadian Standards Association (CSA) and reaffirmed in 2018, sets the minimum nominal full-load efficiency requirements for polyphase induction motors sold or used in Canada. This standard is a cornerstone of Canada’s energy efficiency regulations, aligning closely with U.S. standards while addressing Canadian grid and operational conditions. It applies to three-phase, continuous duty, squirrel-cage induction motors operating at voltages up to 600 V, with power ratings from 0.75 kW to 375 kW (1 hp to 500 hp). The standard covers motors with 2, 4, 6, and 8 poles at 60 Hz.
Scope and Purpose
The primary objective of CAN CSA C802.1-13 is to reduce energy consumption by establishing baseline efficiency levels that motors must meet to be sold in Canada. The scope includes general-purpose, definite-purpose, and special-purpose motors, with specific exclusions such as single-phase motors, motors intended for submersible pumps, and motors that are components of certified equipment. The standard references test methods per CSA C390-10 (or IEEE 112 Method B) to determine efficiency values, ensuring consistent measurement across manufacturers.
The standard recognizes two efficiency classes:
- Standard Efficiency (EPAct) – Based on U.S. Energy Policy Act levels.
- Premium Efficiency (NEMA Premium) – Higher efficiency class that aligns with NEMA MG-1 Table 12-12.
Provincial regulations typically require motors to meet at least the Standard Efficiency levels, while some programs mandate Premium Efficiency for certain applications.
Technical Requirements
Efficiency Tables
The core of the standard is the two tables of nominal full-load efficiency values for 60 Hz operation with a service factor of 1.15 or less. These tables are derived from NEMA MG-1 and provide minimum efficiencies for each horsepower and pole configuration. Below is a representative excerpt for 4-pole (1800 rpm) motors:
| Motor Output (hp) | Standard Efficiency (%) | Premium Efficiency (%) |
|---|---|---|
| 1 | 82.5 | 85.5 |
| 3 | 87.5 | 89.5 |
| 5 | 88.5 | 90.2 |
| 7.5 | 89.5 | 91.7 |
| 10 | 90.2 | 91.7 |
| 20 | 91.0 | 92.4 |
| 50 | 92.4 | 93.6 |
| 100 | 93.0 | 94.1 |
| 200 | 93.6 | 95.0 |
Note: Efficiency values for 2, 6, and 8 pole motors differ; always refer to the latest edition of CSA C802.1-13 for complete tables. Motors rated in kW are similarly mapped.
Voltage and Frequency Variations
Motors covered must be capable of operating at rated load with voltage variation of ±10% and frequency variation of ±5% while still meeting the efficiency thresholds. This ensures robust performance under typical Canadian power quality conditions.
Implementation Considerations
Testing and Verification
Efficiency must be determined using the test method described in CSA C390-10 (Test Method for Determining the Efficiency of Electric Motors) or, alternatively, IEEE 112 Test Method B. These methods provide consistent measurement of input and output power, enabling the calculation of efficiency. Manufacturers must ensure that the average efficiency of a production lot meets or exceeds the nominal value in the standard, allowing a statistical tolerance.
Certification and Labeling
In Canada, motors regulated under provincial energy efficiency regulations require certification from an accredited body, such as CSA or NRCan’s Energy Efficiency Regulations. Compliance is indicated by a verification mark or an energy efficiency verification report. The motor nameplate must include the nominal full-load efficiency as determined per the standard.
Manufacturers who achieve Premium Efficiency levels can differentiate their products in the market, potentially qualifying for utility rebates and meeting stricter green procurement requirements.
Compliance and Regulatory Notes
Regulatory Adoption in Canada
While CSA C802.1-13 is a voluntary standard in itself, it is referenced extensively in provincial energy efficiency regulations. For example, the British Columbia Energy Efficiency Standards Regulation, the Ontario Electrical Safety Code (through adoption of energy efficiency provisions), and similar regulations in Quebec, Manitoba, and Alberta require compliance with the standard for specific motor categories.
Enforcement and Penalties
Non-compliance can result in prohibition of sale, fines, or removal from the market. Regulatory bodies may conduct market surveillance and require proof of compliance through test reports. Since 2018, the standard has been reaffirmed; however, check for any amendments or newer editions (e.g., CSA C802.1-23) that may have been published after 2023.
Important: Always verify the exact edition of the standard referenced by your specific provincial regulation. Some provinces may still reference previous editions (e.g., 2006) during transition periods.
International Alignment
The standard is harmonized with the U.S. Department of Energy (DOE) efficiency regulations and NEMA MG-1. Consequently, motors compliant with U.S. EPAct or NEMA Premium generally meet Canadian requirements, easing cross-border trade. However, differences in testing acceptance or voltage ratings (e.g., 575 V vs. 460 V) must be considered.
Failure to verify compliance with the specific Canadian standard can lead to costly recalls and supply chain disruptions. Always confirm testing was performed at Canadian voltage and frequency (60 Hz) under the recognized test method.
Frequently Asked Questions
Q: Which motors are explicitly excluded from the scope of CAN CSA C802.1-13?
A: Exclusions include single-phase motors, motors less than 0.75 kW (1 hp), motors greater than 375 kW (500 hp), multi-speed motors, brake motors, and motors specifically designed for submersible pump applications. Additionally, motors that are part of a certified system (e.g., hermetic compressors) are typically covered by other standards.
A: Exclusions include single-phase motors, motors less than 0.75 kW (1 hp), motors greater than 375 kW (500 hp), multi-speed motors, brake motors, and motors specifically designed for submersible pump applications. Additionally, motors that are part of a certified system (e.g., hermetic compressors) are typically covered by other standards.
Q: How does the standard handle motors with a service factor above 1.15?
A: Motors with a service factor (SF) greater than 1.15 are considered to have a thermal reserve and may have slightly lower efficiency at rated load. The standard still applies to these motors; however, the efficiency measured at full load must still meet the minimum values specified for the same horsepower and speed. Some manufacturers derate the nameplate to comply.
A: Motors with a service factor (SF) greater than 1.15 are considered to have a thermal reserve and may have slightly lower efficiency at rated load. The standard still applies to these motors; however, the efficiency measured at full load must still meet the minimum values specified for the same horsepower and speed. Some manufacturers derate the nameplate to comply.
Q: Is there a difference between the 2013 edition and the 2018 reaffirmation?
A: No technical changes were made during the 2018 reaffirmation. The reaffirmation confirmed that the standard’s technical content remains current. Therefore, the requirements are identical, though the reaffirmation signals continued acceptance by the CSA committee.
A: No technical changes were made during the 2018 reaffirmation. The reaffirmation confirmed that the standard’s technical content remains current. Therefore, the requirements are identical, though the reaffirmation signals continued acceptance by the CSA committee.
Q: Does the standard also address efficiency under adjustable speed drive (ASD) operation?
A: The standard specifies efficiency at full-load, 60 Hz sinewave power. For motors used with ASDs, efficiency may vary with drive harmonics and operating conditions. While the standard does not directly measure inverter-fed efficiency, motors intended for ASD use must still meet the nominal efficiency requirements under sinusoidal conditions. Additional performance standards (e.g., NEMA MG 1 Part 30) apply for ASD compatibility.
A: The standard specifies efficiency at full-load, 60 Hz sinewave power. For motors used with ASDs, efficiency may vary with drive harmonics and operating conditions. While the standard does not directly measure inverter-fed efficiency, motors intended for ASD use must still meet the nominal efficiency requirements under sinusoidal conditions. Additional performance standards (e.g., NEMA MG 1 Part 30) apply for ASD compatibility.
This article was prepared for informational purposes and does not replace the official text of CAN CSA C802.1-13 (2018). Always consult the published standard for complete and authoritative requirements.
Last updated: 2026