The BQD350 is a Siemens 3-pole, 50 Amp, 480V bolt-on circuit breaker, designed for high-performance electrical applications. With a robust short-circuit current rating of 14kA, it ensures reliable protection and safety for your systems. Ideal for industrial settings, this breaker is a dependable choice for your electrical supply needs.
| Brand | Siemens |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 50 A |
| Poles | 3-Pole |
| Voltage | 480V |
| Interrupting Rating | 14 kA |
| Mounting | Bolt-On |
| Frame / Series | BQD |
| Catalogue # | BQD350 |
The Siemens BQD350 is a bolt-on, 3-pole MCCB from the BQD frame series, rated 50A / 480V / 14kA. As a molded-case circuit breaker, it is designed to mount in compatible Siemens industrial panelboards and switchboards that accept BQD-frame bolt-on breakers — it is not intended for residential loadcentres. Typical applications include commercial and industrial distribution panels where a 480V, 3-phase, bolt-on installation is required.
Send us your panelboard model and we'll confirm fitment for your specific installation.
The BQD350 is a bolt-on MCCB designed for Siemens industrial panelboards and switchboards that accept BQD-frame breakers. It is a 480V, 3-phase device and is not compatible with standard residential loadcentres. Contact our team with your panelboard model number and we'll verify compatibility.
The 14kA short-circuit current rating (SCCR) is suitable for many commercial and light industrial 480V distribution systems. However, you should verify that 14kA meets or exceeds the available fault current at your installation point — your electrical engineer or arc-flash study will confirm this. If you need a higher interrupting rating in the BQD frame, let us know and we can help source an alternative.
Availability of specific BQD-frame breakers can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers, so even if the BQD350 is no longer in current production, we can often source new, reconditioned, or equivalent units. Reach out to our Calgary, Edmonton, or Vancouver counters for a quote and availability check.
