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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 BQ2B12500S01 is a BQ Series miniature circuit breaker rated 125 A, 120/240V AC, 2-pole with shunt trip and a 10kA interrupting capacity at 120/240V AC. Designed for use in Siemens panelboards, this…

SKU 3G-OTH-623658

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
BQ2B12500S01
Type
Shunt Trip
AC
120/240V
Poles
2
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQ2B12500S01 is a BQ Series miniature circuit breaker rated 125 A, 120/240V AC, 2-pole with shunt trip and a 10kA interrupting capacity at 120/240V AC. Designed for use in Siemens panelboards, this bolt-on breaker provides overcurrent protection in a single-phase configuration.

Frequently Asked Questions

What is the Siemens BQ2B12500S01 miniature circuit breaker used for?

The Siemens BQ2B12500S01 is a 125 A, 2-pole bolt-on miniature circuit breaker with shunt trip, designed for overcurrent protection in Siemens panelboards. It is commonly used in commercial and industrial single-phase 120/240V AC applications where remote tripping is required.

What are the specifications of the Siemens BQ2B12500S01?

The Siemens BQ2B12500S01 is rated 125 A at 120/240V AC, 2-pole, single-phase, with a 10kA interrupting capacity at 120/240V AC. It features a shunt trip and is a BQ Series bolt-on breaker for use in Siemens panelboards.

Where to buy the Siemens BQ2B12500S01 worldwide?

3G Electric supplies the Siemens BQ2B12500S01 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 breaker.

How to install the Siemens BQ2B12500S01 circuit breaker?

Install the Siemens BQ2B12500S01 by bolting it into a compatible Siemens panelboard. Ensure power is off, connect line and load conductors to the terminals, and wire the shunt trip per the manufacturer's diagram. Always follow local electrical codes and use a licensed electrician.

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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