application
Shunt Trip Circuit Breakers
Search source-backed shunt-trip breaker records for remote shutdown, suppression interlocks and controlled disconnect applications.
What is a shunt-trip breaker?
A shunt-trip breaker includes a remote trip mechanism that opens the breaker when the specified trip coil is energized. Applications can include engineered emergency shutdown, commercial cooking suppression interfaces, elevator or equipment disconnect functions, and other control schemes.
Common product families
The catalog includes Square D QO/QOB/QOU shunt-trip variants, Eaton BR shunt-trip breakers and Siemens QP shunt-trip models. Match the exact part number, coil voltage, pole count, interrupting rating and panel family.
Safety: a shunt-trip function does not make otherwise incompatible breakers interchangeable. Verify the panel listing, control voltage and engineered shutdown sequence.
Reference content and catalog data support research. Final breaker or fuse selection must be checked against the exact equipment label, manufacturer instructions, listing or classification conditions, fault-current requirements, coordination, and applicable code.