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SIEMENS Miniature Circuit Breaker: 45 A Amps, 240V AC, 3 Poles - BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 45 A Amps, 240V AC, 3 Poles

The Siemens BQ3B04500S01 is a BQ Series bolt-on miniature circuit breaker rated 45 A, 240V AC, with three poles and a shunt trip. It provides 10kA interrupting capacity at 240V AC and is designed for use in Siemens…

SKU 3G-OTH-623751

Brand
SIEMENS
Item
Miniature Circuit Breaker: 45 A Amps, 240V AC, 3 Poles
Category
BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
BQ3B04500S01
Type
Shunt Trip
AC
240V
Poles
3
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQ3B04500S01 is a BQ Series bolt-on miniature circuit breaker rated 45 A, 240V AC, with three poles and a shunt trip. It provides 10kA interrupting capacity at 240V AC and is designed for use in Siemens panelboards.

Frequently Asked Questions

What is the Siemens BQ3B04500S01 miniature circuit breaker used for?

The Siemens BQ3B04500S01 is a BQ Series bolt-on miniature circuit breaker rated 45 A, 240V AC, with three poles and a shunt trip. It provides overcurrent protection and remote tripping capability in Siemens panelboards for industrial and commercial electrical distribution systems.

What are the specifications of the Siemens BQ3B04500S01?

The Siemens BQ3B04500S01 is a 45 A, 240V AC, three-pole miniature circuit breaker with a shunt trip. It offers a 10kA interrupting capacity at 240V AC and is designed for bolt-on installation in Siemens panelboards. The manufacturer part number is BQ3B04500S01.

Where to buy the Siemens BQ3B04500S01 worldwide?

3G Electric supplies the Siemens BQ3B04500S01 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Siemens BQ Series breaker.

How to install the Siemens BQ3B04500S01 in a panelboard?

Install the Siemens BQ3B04500S01 by bolting it into a compatible Siemens panelboard bus bar. Ensure the circuit is de-energized, torque connections to manufacturer specifications, and verify the shunt trip wiring for remote trip functionality. Always follow local electrical codes and Siemens installation instructions.

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 bq & bqh 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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