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The Q320 – SIEMENS 3P20A 240V Push In Breaker is a reliable circuit protection solution designed for 3-phase applications. With a 20A rating and an impressive 10kA interrupting capacity, this breaker offers peace of mind and superior performance. Built to endure, it ensures safety and efficiency in your electrical systems.
The Q320 is designed for Siemens/ITE plug-in loadcentres and panelboards, including the EQ, ES, PL, and PN series. It requires three available single-pole spaces and a panel rated for 3-phase 240V operation. If you're unsure whether your panel accepts Q-frame plug-in breakers, just share your panel model with our team and we'll confirm compatibility.
A 10kA interrupting capacity is suitable for most residential and light-commercial installations where the available fault current at the panel does not exceed 10,000 amperes. If your service or panelboard is fed from a large utility transformer or has a high available short-circuit current, you may need a higher-interrupting-rated breaker. We recommend verifying the available fault current at your panel — our specialists can help you select the right breaker if needed.
Yes — the Q320 is a current-production Siemens Q-frame breaker and is a direct replacement for earlier Q-series 3-pole 20A units used in compatible Siemens/ITE panels. Northern Breaker Group also specialises in obsolete and hard-to-find breakers, so if your panel requires a discontinued variant (such as an older ITE equivalent), contact us and we'll source the right replacement for you.
