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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 BQH Series BQ3B045H is a 45 A, 240V AC, three-pole miniature circuit breaker with high interrupting capacity (22kA at 240V AC). Designed for bolt-on installation in Siemens panelboards, this BQ & BQH…

SKU 3G-OTH-623739

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
BQ3B045H
Type
High Interrupting Capacity
AC
240V
Poles
3
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQH Series BQ3B045H is a 45 A, 240V AC, three-pole miniature circuit breaker with high interrupting capacity (22kA at 240V AC). Designed for bolt-on installation in Siemens panelboards, this BQ & BQH Series breaker provides overcurrent protection for industrial electrical distribution systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Siemens BQ3B045H miniature circuit breaker used for?

The Siemens BQ3B045H is a 45 A, 240V AC, three-pole miniature circuit breaker with high interrupting capacity (22kA at 240V AC). It provides overcurrent protection in industrial electrical distribution systems and is designed for bolt-on installation in Siemens panelboards.

What are the specifications of the Siemens BQ3B045H?

The Siemens BQ3B045H is rated 45 A at 240V AC, three poles, with a high interrupting capacity of 22kA at 240V AC. It is part of the BQH Series and designed for bolt-on installation in Siemens panelboards. The manufacturer part number is BQ3B045H.

Where to buy the Siemens BQ3B045H worldwide?

3G Electric supplies the Siemens BQ3B045H miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this BQH Series breaker.

How to install the Siemens BQ3B045H in a panelboard?

The Siemens BQ3B045H is a bolt-on type breaker designed for installation in Siemens panelboards. Ensure the panel is de-energized, align the breaker with the bus bar, and torque the bolt to the manufacturer's specification. Always follow Siemens installation instructions and local electrical codes.

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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