Reliable, CSA-Certified Power Protection — Built for Canadian Conditions.
Noark’s Ex9 Series Enclosed Circuit Breakers deliver robust, service-entrance-rated protection for industrial, commercial, and OEM applications across Canada. Each unit combines a UL 489 and CSA C22.2 No. 5 certified molded-case circuit breaker (M1–M4 frames) with a factory-assembled NEMA 1, 12, or 3R enclosure, ensuring dependable operation in both indoor and outdoor environments.

Designed for 15 A to 600 A ratings and 600 V AC applications, these enclosed breakers are approved for service-entrance use under the Canadian Electrical Code (CEC) — making them ideal for feeders, disconnects, and standalone power isolation points. With standard, normal, and high-interrupting capacities (up to 100 kA @ 480 V), Noark’s assemblies deliver proven performance and compliance for Canadian electrical contractors, panel builders, and facility engineers.

Key Features:

CSA C22.2 No. 5 & UL 489 Certified – File No. E355392

Service Entrance Rated – Suitable per CEC & NEC requirements

Current Range: 15 A – 600 A | Voltage: up to 600 V AC

NEMA Enclosures: Type 1 (indoor), Type 12 (dust-tight), Type 3R (weatherproof)

Trip Units: Thermal-Magnetic (standard, normal, high IC)

Neutral Terminal Options: 3-wire or 4-wire (1-hole / 2-hole NT kits)

Made for Canada: Engineered in Kitchener, ON with local distribution support

Noark’s enclosed breakers provide a modern alternative to fused disconnect switches, offering resettable protection, reduced downtime, and lower maintenance costs. Each unit is pre-wired, factory-tested, and ready for quick installation in service entrance or feeder positions.

Whether you’re outfitting a new panelboard, upgrading a service entrance disconnect, or specifying industrial control equipment, Noark’s Enclosed Circuit Breakers deliver exceptional value, reliability, and code compliance — backed by a five-year limited warranty and full North American technical support.