The Siemens QPH series Q350H is a 3-pole, 50-amp plug-on miniature circuit breaker rated at 22 kA interrupting capacity at 240VAC — the "H" denoting its high interrupting capacity versus the standard QP line. Fixed thermal-magnetic trip technology with LI (Long-Time, Instantaneous) trip function guards against both sustained overloads and short-circuit faults. Compatible with Siemens EQ, PL, ES, and Ultimate load centers, and a direct replacement for discontinued Murray MP350 breakers. Accepts #8–#6 AWG copper or #8–#4 AWG aluminum conductors via Siemens Insta-Wire terminations. Listed to UL 489 and CSA C22.2 No. 5; HACR rated; rated to 40°C.
Not Available in California: Q350H, Q360H
Features
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- Brand: Siemens
- Category: Circuit Breakers
- Product family: Siemens Type QPH Three-Pole 22kA Circuit Breaker
- Available models: Q350H, Q360H
- Amperage: Varies by model
- Number of Poles: 3
- Protection Type: Varies by model