The BQ2B040 Siemens 2P 40A 240V Bolt-On Breaker is designed for reliable circuit protection in residential and commercial applications. With a robust 10kA fault current interrupting capacity, this double pole breaker ensures efficient performance and safety. Compact and easy to install, it’s an ideal choice for your electrical needs.
| Brand | Siemens |
|---|---|
| Type | Standard (Thermal-Magnetic) |
| Amperage | 40 A |
| Poles | 2-Pole |
| Voltage | 240V |
| Interrupting Rating | 10 kA |
| Mounting | Bolt-On |
| Frame / Series | BQ |
| Catalogue # | SIEBQ2B040 |
The Siemens BQ2B040 is a BQ-series bolt-on breaker, designed to fit Siemens/ITE bolt-on style loadcentres and panelboards — including select Siemens EQ, ES, PL, and PN series panels that accept bolt-on (BL/BQ) type breakers. As a 2-pole, 40A, 240V unit with 10kA interrupting capacity, it is suited for both residential and light commercial distribution panels.
Bolt-on breakers are not interchangeable with plug-in style panels — confirm your panel accepts the BQ bolt-on frame before ordering. Send us your panel model number and we'll confirm compatibility.
Bolt-on breakers like the BQ2B040 physically bolt to the bus bar using a fastener, providing a more secure mechanical and electrical connection. They are not interchangeable with plug-in style breakers — your panel must specifically accept the BQ bolt-on frame. Check your panel's label or door schedule, or contact us with your panel model to confirm.
Yes — the BQ2B040 is a 2-pole 240V breaker rated at 40A, making it a common choice for circuits such as electric ranges, dryers, EV chargers, hot tubs, or as a feeder breaker for a small sub-panel. Always verify the load's ampacity requirements and wire gauge (typically 8 AWG copper for a 40A circuit) before installation.
The BQ series is an established Siemens bolt-on product line, though availability can vary — especially for less common amp ratings. Northern Breaker Group specializes in both current-production and hard-to-find breakers. Contact our Calgary, Edmonton, or Vancouver counters or request a quote online and we'll confirm stock and lead time for the BQ2B040.
