Siemens B215 Miniature Circuit Breaker

The B215 bolt-on breaker is designed for direct integration with Siemens P1, P2, P3, P4, and P5 panelboards. It requires a bolt-on connection and is not compatible with load centers that take plug-in style units.

The B215 features Insta-wire terminals, meaning the standard connection screws are shipped factory-backed out. This allows the electrician to immediately insert the wire and tighten the lug, speeding up panelboard assembly.

Yes, this breaker is HACR rated. This certification verifies it can safely handle the specific inrush currents and operational demands of heating, air conditioning, and refrigeration motor loads.

Yes, the B215 carries a Switching Duty (SWD) rating. This confirms the mechanical toggle mechanism is durable enough to switch fluorescent lighting loads on and off regularly without degrading the internal contacts.

The long-time thermal element monitors for gradual heat buildup caused by extended overloads, while the instantaneous magnetic mechanism reacts immediately to severe short circuits, rapidly opening the circuit to prevent wire and equipment damage.

Yes, Siemens acquired the ITE product line and continues to manufacture the Type BL series. The B215 serves as an exact, safety-certified replacement for the original ITE B215 breakers.

Yes, because the internal trip unit is fixed and not removable, this breaker is suitable for reverse-fed applications, such as acting as a main breaker or in a solar backfeed setup, when permitted by local electrical codes.

The integrated load lugs accommodate 14 to 10 AWG copper or 12 to 10 AWG aluminum wiring. The connectors are rated for use with standard 60 and 75 degree Celsius insulated conductors.