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SIEMENS BQD240 Miniature Circuit Breaker, 40A, 480V AC, 2-Pole, Std Type - BQD Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQD Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS BQD240 Miniature Circuit Breaker, 40A, 480V AC, 2-Pole, Std Type

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD240) is a bolt-on, 2-pole unit rated 40 A at 480V AC with a 14kA interrupting capacity at 480V AC. Designed for use in Siemens P1 Panelboards, it features a…

SKU 3G-OTH-725640

Also listed as: BQD 240 · BQD-240

Brand
SIEMENS
Item
BQD240 Miniature Circuit Breaker, 40A, 480V AC, 2-Pole, Std Type
Part Number
BQD240
Category
BQD Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
BQD240
Type
Std
AC
480V
Poles
2

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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD240) is a bolt-on, 2-pole unit rated 40 A at 480V AC with a 14kA interrupting capacity at 480V AC. Designed for use in Siemens P1 Panelboards, it features a single-pole construction and Std type.

Frequently Asked Questions

What is the Siemens BQD240 miniature circuit breaker used for?

The Siemens BQD240 is a bolt-on miniature circuit breaker used for overcurrent protection in Siemens P1 panelboards. It is rated 40 A at 480V AC with a 14kA interrupting capacity, making it suitable for industrial and commercial electrical distribution systems requiring reliable branch-circuit protection.

What are the specifications of the Siemens BQD240 circuit breaker?

The Siemens BQD240 is a 2-pole, bolt-on miniature circuit breaker rated 40 A at 480V AC. It has a 14kA interrupting capacity at 480V AC, single-pole construction, and Std type. It is designed for use in Siemens P1 Panelboards and carries MPN BQD240.

Where to buy the Siemens BQD240 circuit breaker worldwide?

3G Electric supplies the Siemens BQD240 miniature circuit breaker worldwide. We interpret your demand, source genuine Siemens electrical protection through our supply chain, and handle logistics, customs, and delivery to your facility globally. Contact us for availability and lead time.

How to install the Siemens BQD240 circuit breaker?

Install the Siemens BQD240 by ensuring the panelboard is de-energized, then bolt the breaker onto the bus bar in a Siemens P1 Panelboard. Torque terminals to manufacturer specifications for the 40 A, 480V AC rating. Always follow local electrical codes and use proper personal protective equipment.

Used in

Common applications for SIEMENS
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks
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SIEMENS Products

3G Electric supplies SIEMENS bqd series, bolt-on siemens miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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