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The QR23B100 is a Siemens 3-pole 100A circuit breaker designed for 240V applications. With a breaking capacity of 10kA, it ensures reliable protection against overloads and short circuits. Its push-in installation feature simplifies the setup process, making it an efficient choice for both residential and commercial electrical systems.
The QR23B100 is a bolt-on breaker from Siemens' QR series, generally compatible with Siemens/ITE EQ, ES, PL, and PN loadcentres and panelboards that accept bolt-on 3-pole breakers. Because compatibility varies by panel vintage and configuration, we recommend sending us your panel model number so we can confirm before you order.
The Siemens QR series is an older bolt-on line, and availability can be limited through standard distribution channels. Northern Breaker Group specialises in hard-to-find and obsolete breakers, so we can often source the QR23B100 when others can't. Contact our Calgary, Edmonton, or Vancouver counter for current stock.
Yes — a 3-pole 100A breaker like the QR23B100 is commonly used as a main disconnect in a sub-panel or secondary distribution panel fed from a larger service. You'll need to verify that your sub-panel accepts bolt-on breakers of this frame size and that the panel's bus rating meets or exceeds 100A. Check your panel's documentation or reach out and we'll help you confirm.
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