BQ2B040– SIEMENS 2P40A 240V BOLT ON 10kA BREAKER

Standard · 40A · 2-Pole · 240V · Bolt-On

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.

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SKU SIEBQ2B040 Categories , ,
Specifications
BrandSiemens
TypeStandard (Thermal-Magnetic)
Amperage40 A
Poles2-Pole
Voltage240V
Interrupting Rating10 kA
MountingBolt-On
Frame / SeriesBQ
Catalogue #SIEBQ2B040
Panel Compatibility

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.

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