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SIEMENS Miniature Circuit Breaker: 125 A Amps, 120/240V AC, 2 Poles - BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 125 A Amps, 120/240V AC, 2 Poles

The Siemens BQ2B125 is a BQ Series miniature circuit breaker, bolt-on type, rated 125 A at 120/240V AC with 2 poles and a 10kA interrupting capacity at 120/240V AC. Designed for use in Siemens panelboards, this Std…

SKU 3G-OTH-623659

Brand
SIEMENS
Item
Miniature Circuit Breaker: 125 A Amps, 120/240V AC, 2 Poles
Category
BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
BQ2B125
Type
Std
AC
120/240V
Poles
2
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQ2B125 is a BQ Series miniature circuit breaker, bolt-on type, rated 125 A at 120/240V AC with 2 poles and a 10kA interrupting capacity at 120/240V AC. Designed for use in Siemens panelboards, this Std type breaker supports single-phase operation. 3G Electric interprets your demand for genuine industrial electrical components, sourcing this Siemens breaker alongside thousands of other parts across 14 departments — with specialist depth in controls to support your panelboard and distribution needs.

Frequently Asked Questions

What is the Siemens BQ2B125 miniature circuit breaker used for?

The Siemens BQ2B125 is a bolt-on miniature circuit breaker rated 125 A at 120/240V AC, used for overcurrent protection in Siemens panelboards. It supports single-phase operation and is common in commercial and industrial electrical distribution systems where reliable branch circuit protection is required.

What are the specifications of the Siemens BQ2B125?

The Siemens BQ2B125 is a BQ Series miniature circuit breaker with 2 poles, 125 A rating, 120/240V AC voltage, and a 10kA interrupting capacity at 120/240V AC. It is a bolt-on, Std type breaker designed for use in Siemens panelboards.

Where to buy the Siemens BQ2B125 worldwide?

3G Electric supplies the Siemens BQ2B125 miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. As a sourcing specialist across 14 industrial departments, we provide genuine Siemens breakers and support your panelboard requirements.

How to select the correct Siemens miniature circuit breaker for a panelboard?

To select the correct Siemens miniature circuit breaker like the BQ2B125, verify the panelboard model, required amperage (125 A), voltage (120/240V AC), pole count (2), and interrupting capacity (10kA). Ensure the breaker type (bolt-on, Std) matches the panelboard's bus configuration. Consult Siemens documentation for compatibility.

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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