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The CED63B090 is a reliable Siemens 3P90A 600V bolt-on circuit breaker, designed to handle a fault current rating of 100kA. Ideal for industrial and commercial applications, it provides superior protection for your electrical systems. This durable breaker ensures safety and performance, making it an essential component for any setup.
The CED63B090 carries a 100kA interrupting (fault current) rating at 600V. This means it can safely clear fault currents up to 100,000 amperes without failing catastrophically. For industrial and commercial installations fed from large transformers or utility services with high available fault current, selecting a breaker with an adequate interrupting rating is a critical safety and code requirement — undersized interrupting ratings can result in a breaker failing violently during a fault.
The CED63B090 can serve in either role depending on your switchboard or panelboard design. Its 90A, 3-pole, 600V configuration and 100kA interrupting rating make it well-suited as a main disconnect for smaller sub-panels or as a feeder/branch protective device in a larger 600V commercial or industrial distribution system. Consult your panelboard's layout and the Canadian Electrical Code (CEC) for proper application and coordination requirements.
Northern Breaker Group specializes in obsolete, hard-to-find, and current-production breakers. Whether the CED63B090 is an active Siemens catalogue item or has been discontinued, we can source new, surplus, or reconditioned units. Contact us or visit one of our Calgary, Edmonton, or Vancouver counters for availability — we're happy to provide a quote.
