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The SIEQR23B225 is a high-performance Siemens 3-pole circuit breaker rated for 225A and 250V. Engineered for reliability and safety, this breaker is ideal for industrial and commercial applications. Its compact design ensures easy installation and maintenance. Trust Siemens quality for outstanding protection in your electrical systems.
The SIEQR23B225 is a bolt-on molded-case circuit breaker (MCCB) designed for Siemens/ITE commercial and industrial panelboards and switchboards that accept QR-frame, 3-pole, 225A bolt-on devices. It is not intended for residential loadcentres. Contact us with your panelboard model number and we can confirm compatibility.
The QR-frame series is considered a legacy Siemens product line, and availability can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers — reach out to our Calgary, Edmonton, or Vancouver counter and we'll check current stock or source it for you.
Yes — rated at 250V, the SIEQR23B225 is suitable for use on 3-phase systems up to 250V AC, which covers common commercial voltages such as 208Y/120V and 240V. Always verify the available interrupting rating (AIC) of the breaker meets or exceeds the available fault current at your installation point, in accordance with the Canadian Electrical Code.
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