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The Q21530CTNC by Siemens is a reliable quad push-in circuit breaker rated at 15/30/15A for 240V applications. With a dependable 10kA interrupting capacity, this breaker ensures superior protection for your electrical circuits. Its compact design allows for easy installation and space-saving capabilities, making it ideal for residential or commercial use.
The Q21530CTNC is a quad breaker with three separate circuits sharing a two-slot space: two independent 15 A single-pole circuits on the outer positions and one 30 A double-pole circuit in the centre. This allows you to protect up to three circuits while only occupying two panel slots — ideal for panels where space is at a premium.
The Q21530CTNC can be a difficult-to-find SKU depending on market availability. Northern Breaker Group specialises in sourcing both current-production and hard-to-find or obsolete Siemens Q-series breakers. Contact us for current stock status and lead times — we serve customers across Calgary, Edmonton, and Vancouver.
Provided your Siemens/ITE loadcentre is listed to accept quad-style tandem breakers in the slot position you intend to use, yes — the plug-in bus connection is the same Q-series interface. However, not every slot in every panel is quad-approved; check your panel's interior door chart or breaker directory for approved positions. If you're unsure, share your panel model with us and we'll help you confirm before installation.
