BQD320 – SIEMENS 3P20A 480V BOLT ON 14kA BREAKER

The BQD320 is a bolt-on MCCB designed for Siemens commercial and industrial panelboards that accept BQD-frame breakers. It is not a residential plug-in breaker and will not fit standard EQ or PL loadcentres. Because compatibility depends on your panelboard's specific bus and frame, we recommend sending us your panel model number so we can confirm before you order.

Yes. The BQD320 is rated 480V AC, 3-Pole, making it purpose-built for 3-phase 480V branch-circuit protection — a common voltage in Canadian commercial and light-industrial distribution systems. Its 14kA interrupting rating must be verified against the available fault current at your panel's bus; if your system's available fault current exceeds 14kA, a higher-interrupting-rated breaker will be required.

Availability of specific MCCB variants like the BQD320 can vary. Northern Breaker Group specialises in obsolete and hard-to-find breakers across our Calgary, Edmonton, and Vancouver locations. Whether the BQD320 is a current or discontinued part, contact us for a quote — we'll locate new, reconditioned, or surplus stock on your behalf.