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The CFD63B100 is a high-performance Siemens 3-Pole 100A circuit breaker designed for 600V applications. With a robust 100kA interrupting rating, this bolt-on breaker ensures reliable protection for your electrical systems. Ideal for industrial and commercial settings, it combines durability with efficiency, making it a trusted choice for demanding environments.
The Siemens CFD frame is a molded-case circuit breaker series rated for up to 600V AC and high interrupting capacities — the CFD63B100 specifically achieves 100kA AIC. This sets it apart from lighter-duty frames (such as the residential QP or BL series) and makes it suitable for demanding commercial and industrial distribution applications where high fault-current protection is required.
Yes, the CFD63B100 can serve as a main breaker in a compatible commercial panelboard or as a branch/feeder breaker in a switchboard or motor control centre, provided the enclosure is rated for CFD-frame bolt-on breakers and the bus is rated for 100A, 3-Pole, 600V service. Always verify with your panel manufacturer's documentation or contact us to confirm suitability for your specific installation.
Northern Breaker Group specializes in sourcing hard-to-find and obsolete breakers, including the Siemens CFD series. Availability can vary — contact our Calgary, Edmonton, or Vancouver locations or submit a quote request online and our team will confirm current stock and lead time for the CFD63B100.
