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The Q21540CTNC Siemens Quad Push-In Circuit Breaker offers a reliable solution for your electrical needs with 15/40/15A ratings at 240V. Designed for high-performance applications, it features a robust 10kA interrupting capacity, ensuring superior short-circuit protection. Ideal for residential and commercial installations, this breaker guarantees safety and efficiency in power management.
The CTN quad format combines three circuits into a 4-pole space: the two outer poles each provide a 15A 120V branch circuit, while the two centre poles form a single 40A 240V double-pole circuit. This lets you feed a large 240V load (such as a dryer or A/C unit) and two standard 15A branch circuits — all from just four spaces in your panel.
Siemens quad CTN breakers can be difficult to locate through standard distribution channels. Northern Breaker Group specialises in obsolete and hard-to-find breakers — contact our Calgary, Edmonton, or Vancouver counters or request a quote online and our team will source it for you.
The 40A centre section is a true double-pole 240V breaker and is suitable for 240V loads. The two 15A outer poles function as independent 120V single-pole breakers. For shared-neutral (multi-wire) branch circuit applications, consult a licensed electrician to ensure compliance with the Canadian Electrical Code (CEC), as handle-tying and circuit pairing requirements must be met.
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