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SIEMENS BQD340 Miniature Circuit Breaker, 40A, 480V AC, 3-Pole, Bolt-On - BQD Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQD Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS BQD340 Miniature Circuit Breaker, 40A, 480V AC, 3-Pole, Bolt-On

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD340) is a 40 A, 480V AC, 3-pole bolt-on unit with a 14kA interrupting capacity at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric interprets…

SKU 3G-OTH-725641

Also listed as: BQD 340 · BQD-340

Brand
SIEMENS
Item
BQD340 Miniature Circuit Breaker, 40A, 480V AC, 3-Pole, Bolt-On
Category
BQD Series, Bolt-On Siemens Miniature Circuit Breakers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SIEMENS
Manufacturer Part Number
BQD340
Type
Std
AC
480V
Poles
3

Technical Documents

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

Product Description

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD340) is a 40 A, 480V AC, 3-pole bolt-on unit with a 14kA interrupting capacity at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric interprets your demand for this standard-type breaker, sources it as an authorized distributor, and supports your procurement across 14 industrial departments — with specialist depth in electrical controls.

Frequently Asked Questions

What is the Siemens BQD340 miniature circuit breaker used for?

The Siemens BQD340 is a 40 A, 480V AC, 3-pole bolt-on miniature circuit breaker designed for overcurrent protection in Siemens P1 Panelboards. It is commonly used in commercial and industrial electrical distribution systems where reliable branch-circuit protection is required.

What are the specifications of the Siemens BQD340?

The Siemens BQD340 is a 40 A, 480V AC, 3-pole miniature circuit breaker with a 14kA interrupting capacity at 480V AC. It is a standard-type, bolt-on unit from the BQD Series, designed for use in Siemens P1 Panelboards.

Where to buy the Siemens BQD340 worldwide?

3G Electric supplies the Siemens BQD340 miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we interpret your demand and source this genuine Siemens part for your procurement needs.

How to install the Siemens BQD340 circuit breaker?

Install the Siemens BQD340 by ensuring the panelboard is de-energized, then bolt the breaker onto the bus bars in a Siemens P1 Panelboard. Torque connections to manufacturer specifications and verify the 40 A rating matches the circuit design. 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

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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