Siemens / ITE ET100-390 – 90A 3 Pole Molded Case Circuit Breaker Don’t Miss Out

Part of the legacy ET100 series, this 90A molded case circuit breaker provides essential thermal-magnetic protection for older commercial and industrial setups. Rated for 600VAC and 250VDC, it delivers a 14kAIC interrupting capacity at 480V. The breaker installs into classic ITE and Siemens F-frame panelboards and switchboards, serving as an exact cross-reference for the FXD63B090 and F3B090. It includes line and load lugs for immediate integration into existing bolt-on configurations.