Siemens BQ1B025H Molded Case Circuit Breaker

This bolt-on breaker is designed for use in Siemens commercial panelboards, specifically the P1, P2, P3, P4, and P5 series. It is not compatible with standard residential plug-on load centers.

The H suffix indicates a higher interrupting rating. The standard BQ1B025 is rated for 10kAIC at 120V, while the BQ1B025H is rated for 22kAIC, making it suitable for commercial systems with higher available fault currents.

No. The BQ1B025H features a bolt-on connection designed specifically for commercial panelboards. Standard residential load centers typically require plug-on breakers, such as the Siemens QP or QPH series.

The 22,000 Amps Interrupting Capacity (22kAIC) indicates the maximum fault current the breaker can safely clear without sustaining damage. This higher rating is often required in commercial or industrial environments where the available short-circuit current exceeds the standard 10kAIC limit.

No. This is a standard thermal-magnetic circuit breaker designed for overload and short-circuit protection. It does not include Ground Fault Circuit Interrupter (GFCI) or Arc Fault Circuit Interrupter (AFCI) functionality.

Yes. Siemens acquired ITE, and the BQ1B025H is the direct, manufacturer-approved replacement for older ITE BQ and BQH series 1-pole, 25-amp bolt-on breakers.

The breaker mounts directly to the busbar of compatible Siemens panelboards using its built-in bolt-on connection. No additional mounting kits are required for standard branch circuit installations in P1 through P5 panels.

The factory-installed lugs accept 14 to 6 AWG copper conductors or 12 to 6 AWG aluminum conductors. Always ensure the wire is sized appropriately for the 25-amp rating and torqued to the specifications printed on the breaker label.