Under the Canadian Electrical Code (CEC), all equipment used in electrical installations must be certified by an organization accredited by the Standards Council of Canada. Ontario’s Electrical Safety Code explicitly requires that all electrical equipment be approved by a certification body before use. CSA certification is the recognized standard for meeting these legal requirements.
CSA-certified cables are tested for fire resistance, insulation properties, mechanical strength, and compliance with Canadian Electrical Code requirements. For manufacturers and exporters, CSA certification is a non-negotiable market access requirement—not a value-added option, but a mandatory threshold.
CSA vs. UL: Understanding the Difference
Many buyers familiar with the U.S. market asked: “If my cable has UL certification, is that enough for Canada?”
No.
While UL and CSA standards are broadly harmonized in many technical areas, each requires independent certification. A UL mark qualifies a cable for the U.S. market. A CSA mark—or a cUL mark (certified by UL to CSA standards)—qualifies it for Canada. The two are not interchangeable.
| Aspect | UL (U.S.) | CSA (Canada) |
| Legal status | Recognized in U.S. (NRTL) | Legally required in Canada |
| Applicable standards | UL series | CSA C22.2 series |
| Mutual recognition | cUL mark = tested to CSA standards by UL | CSA mark = certified by CSA |
| Standard harmonization | UL 1277 and CSA C22.2 No. 230 | Not harmonized |
The last point is critical. As the Electrical Safety Authority (ESA) of Ontario stated in a formal decision: “UL standard for tray cables, UL1277, is not harmonized with CSA standard, C22.2 No.230”.
This means products certified under UL 1277 cannot simply be “accepted” in Canada. They must be separately certified to CSA C22.2 No. 230. The ESA explicitly ruled that acceptance of UL-certified cables for certain applications would expire, requiring CSA-certified alternatives.
The Dual-Market Advantage of CSA Certification
Beyond meeting Canada’s legal requirements, CSA certification offers an often-overlooked advantage: CSA also covers the U.S. market.
CSA Group is recognized by OSHA as a Nationally Recognized Testing Laboratory (NRTL) in the United States. Cables bearing the CSA US or cRUus mark can be legally used in the U.S. market without separate UL certification. One certification serves both Canadian and U.S. markets.
TC-ER: Canada’s Exposed-Run Tray Cable Option
TC-ER stands for Tray Cable – Exposed Run. This designation indicates a cable approved for installation outside of cable trays or raceways in specific industrial environments.
The “ER” (Exposed Run) designation is more than permission to leave the tray—it is technical proof that the cable meets mechanical strength requirements. Standard TC cables rely on the tray structure for mechanical protection. TC-ER cables, by contrast, meet crush and impact requirements comparable to armoured (metal clad) cables. This means TC-ER cables can be directly exposed in industrial environments without additional physical protection.
CSA Standard: C22.2 No. 230
In Canada, TC-ER cables are certified under CSA C22.2 No. 230 – Tray Cables. The current edition (2017, third edition) applies to single-conductor and multi-conductor constructions without metal sheath or armour, suitable for use in cable trays and other applications when installed in accordance with the Canadian Electrical Code, Part I.
Key requirements of the standard:
- 600V rating – suitable for power and control applications
- Mechanical strength: TC-ER cables must pass impact testing and oil resistance testing. These are additional mandatory tests beyond basic cable construction requirements. Impact testing verifies structural integrity under mechanical shock—per CSA C22.2 No. 230, cables must withstand 6.8 joules of impact energy without insulation breakdown or sheath cracking. Oil resistance testing verifies the sheath material’s resistance to swelling and degradation when exposed to mineral oil (70°C for 168 hours), with tensile strength and elongation changes not exceeding ±30%.
- -40°C cold bend and cold impact – ensuring performance in Canada’s extreme winter conditions. Much of Canada experiences winter temperatures down to -40°C; cable flexibility and impact resistance at low temperatures directly affect installation and long-term reliability. Cold bend testing requires the cable to bend around a specified mandrel at -40°C without cracking. Cold impact testing verifies impact resistance at -40°C.
- FT4 flame rating – vertical flame test per CSA requirements. FT4 is one of CSA’s most stringent flame ratings, requiring flame propagation not exceeding 1.5 meters and continuous burning not exceeding 60 seconds.
- Exposed Run (ER) marking: TC-ER cables are specifically marked to certify they have passed these additional tests.
The 2017 edition introduced an important update: additional cable types may now be accepted as tray cables—including wet-rated cables from CSA C22.2 No. 38, No. 49, No. 75, No. 96, No. 239, and No. 68.10—provided they meet all requirements of this standard.
2021 Canadian Electrical Code (CEC) Key Revisions
The 2021 edition of the Canadian Electrical Code introduced significant revisions to Rule 12-2202 (Insulated conductors and cables in cable trays), with direct implications for TC-ER cable selection and installation.
- Revision 1: TC-ER size restriction – not smaller than 1/0 AWG
Subrule 3 of Rule 12-2202 now limits cables marked as TC-ER to not smaller than 1/0 AWG. Smaller-gauge cables cannot carry the TC-ER designation in Canada, even if they meet other requirements. For applications requiring smaller conductors, such as control circuits or instrumentation, TC-ER may not be an available option. - Revision 2: Exposed run length limit removed
Previously, TC-ER cables running outside of a cable tray were limited to 7.5 meters (approximately 25 feet). This restriction has been completely removed. TC-ER cables can now be run exposed for any length—provided they are continuously supported and installed per applicable rules. This change significantly expands TC-ER’s installation flexibility in industrial settings. - Revision 3: Cable tray definition changed
The definition of “cable tray” was revised from “raceway” to “supporting means.” This affects tray fill calculations, spacing requirements, and how cables in trays are classified under the Code. - Revision 4: Thermoset-insulated cable provisions
Subrule 5 removed the reference to Table 19 and now provides a direct list of thermoset-insulated conductors and cables that may be installed in cable trays in electrical equipment vaults, service rooms, and other locations inaccessible to the public. All such cables must be not smaller than 1/0 AWG.
Strategic Impact for Manufacturers and Contractors
As Electro Federation Canada’s analysis makes clear, contractors and equipment manufacturers will increasingly seek unarmored cables marked “TC-ER” in accordance with CSA Standard C22.2 No. 230. TC-ER is transitioning from an option to the mainstream choice for industrial tray cable installations.
CSA Certified vs. Non-Certified: The Time-to-Market Gap
The previous section discussed the technical and legal requirements of CSA certification. But in practical terms, the time-cost difference between certified and non-certified cables is equally significant for any cable product targeting the Canadian market; this is a decisive factor that directly impacts cost and revenue.
1. CSA Certification: A Clear Pathway for Canadian Market Access
A complete CSA certification process typically includes application preparation, product testing and evaluation, factory quality assessment (where applicable), and final report review and certificate approval.
The certification timeline depends on factors such as product type, testing requirements, technical documentation readiness, and factory evaluation requirements. For cable products, the overall process typically takes several weeks to several months, depending on product complexity and certification scope.
If a product has already obtained UL-related certification, existing test data and technical documentation may help reduce certain duplicate testing and evaluation activities when applying for Canadian market approval. However, UL certification does not automatically convert into CSA certification. The product must still meet applicable Canadian standards and complete the required certification process.
2. Without CSA Certification: Increased Uncertainty in the Canadian Market Approval Process
| Stage | Potential Impact Without CSA Certification |
| Customs clearance | Additional document review or compliance verification may delay shipment |
| Electrical inspection | Products may require additional approval or may not be accepted if certification requirements are not met |
| Retail and distribution channels | Buyers and platforms may require recognized certification before product acceptance |
| Project bidding | Lack of required certification may affect supplier qualification for certain projects |
| Overall impact | Longer approval timelines and increased market access uncertainty |
With CSA certification, manufacturers can provide recognized compliance documentation that supports customer evaluation, product approval, and market entry planning.
Without CSA certification, suppliers may face additional reviews, documentation requests, or approval delays depending on the application and customer requirements.
For cable manufacturers and exporters, CSA certification is not only a compliance document. It helps reduce uncertainty during procurement and provides a stronger foundation for entering the Canadian electrical market.
TC-ER Applications in Canada
TC-ER cables are widely adopted across multiple industry sectors in Canada. Their common advantages are exposed-run capability without conduit, 600V rating covering power and control circuits, and FT4 flame rating meeting industrial safety requirements.
1. Ductless Mini-Split HVAC Systems
This is one of the most representative TC-ER applications in the Canadian market. The Electrical Safety Authority (ESA) of Ontario confirmed in a formal decision:
“TC-ER cable (certified to CSA standard C22.2 No. 230) shall be permitted to be used for interconnection of units in ductless mini-split air conditioner installations, provided that it is installed as per applicable rules for non-metallic sheathed cables.”
ESA’s rationale: TC-ER cables comply with crush and impact requirements comparable to armored cables and can be installed on building surfaces while continuously supported.
Critical timeline: ESA ruled that acceptance of UL-certified cables (TC-ER-JP and AWM Type PLTC) would expire on June 1, 2021. After that date, all cables used for these applications must be CSA-certified and marked TC-ER.
ESA’s basis was explicit: “UL standard for tray cables, UL1277, is not harmonized with CSA standard, C22.2 No. 230.” This is not a matter of preference—it is a matter of legal compliance.
2. Wind Energy
TC-ER cables are widely used in wind turbine power and control circuits. The special conditions of wind farms—high vibration, wide temperature ranges, long exposed runs—align well with TC-ER’s mechanical strength and exposed-run capability. Multiple manufacturers list TC-ER as the standard option for tower internal wiring.
3. Industrial Plants and Factory Expansions
Multi-conductor TC-ER cables are widely specified for new plant construction and expansion projects. Their flexibility and exposed-run rating simplify installation in industrial environments where conduit would be impractical. Typical applications include CNC machines, conveyor systems, processing and packaging equipment, assembly lines, and control panels.
4. Data Centers
TC-ER cables are increasingly specified for power distribution and control circuits in data center facilities.
Why Choose JZD’s CSA Certified TC-ER Cable?
Based on the above requirements, TC-ER cables for the Canadian market must meet:
- CSA C22.2 No. 230 certification – mandatory for the Canadian market
- 1/0 AWG minimum size – per CEC Rule 12-2202 Subrule 3
- Impact and oil resistance testing – additional CSA C22.2 No. 230 requirements
- -40°C cold bend and cold impact – for Canadian winter conditions
- FT4 flame rating – per CSA requirements
- 600V rating – for power and control applications
- UL 1277 certification (recommended) – for U.S. market access
JZD Cable’s TC-ER cables are designed and manufactured to these standards:
- CSA C22.2 No. 230 certified – fully compliant with Canadian tray cable standards
- UL 1277 certified – meets U.S. tray cable standards for North American acceptance
- TC-ER marked – passed impact and oil resistance tests, approved for exposed runs
- -40°C cold bend and cold impact tested – performance verified in extreme cold
- Thermoset insulation options—XHHW-2 and other compounds, meeting CEC Rule 12-2202 Subrule 5 requirements
With over 25 years of manufacturing experience, JZD Cable serves markets across North America, Europe, Australia, and beyond. Our CSA-certified TC-ER cables are engineered to meet the mechanical, thermal, and flame-retardant requirements of Canadian industrial and commercial installations.
Conclusion
For any cable supplier or project specifier targeting the Canadian market, CSA certification is a non-negotiable legal requirement. It is the mandatory condition for legal sale and installation under the Canadian Electrical Code.
The distinction between CSA and UL certification is not merely procedural. As ESA explicitly stated, UL 1277 and CSA C22.2 No. 230 are not harmonized. Products certified under UL standards require separate CSA certification for the Canadian market.
TC-ER cables—certified under CSA C22.2 No. 230—offer contractors and equipment manufacturers a robust, flexible tray cable solution with exposed-run capability. The 2021 CEC revisions removing length restrictions and clarifying size requirements have made TC-ER an increasingly clear choice for Canadian industrial applications.
Need CSA-certified TC-ER cable for your Canadian project? Contact JZD for technical specifications and certified cable solutions.
