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SIEMENS Miniature Circuit Breaker: 125 A Amps, 120/240V AC, 2 Poles - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

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

The Siemens B2125 is a 125 A, 2-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a 10kA interrupting capacity. Designed for bolt-on installation in Siemens P1 panelboards, it provides…

SKU 3G-OTH-722120

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

SIEMENS
Manufacturer Part Number
B2125
Series
BL
Type
Std
AC
120/240V
Amps
125 A
Phase
Single
Poles
2
For Use With
Siemens P1 Panelboards
Max. AIR Rating
10kA at 120/240V AC
AC Voltage Rating
120/240V AC
View Full Spec Sheet

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

Product Description

The Siemens B2125 is a 125 A, 2-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a 10kA interrupting capacity. Designed for bolt-on installation in Siemens P1 panelboards, it provides overcurrent protection for single-phase branch circuits.

Frequently Asked Questions

What is the Siemens B2125 miniature circuit breaker used for?

The Siemens B2125 is a 125 A, 2-pole miniature circuit breaker designed for overcurrent protection in single-phase branch circuits. It is used in Siemens P1 panelboards for residential and light commercial electrical distribution systems.

What are the specifications of the Siemens B2125 circuit breaker?

The Siemens B2125 is rated 125 A at 120/240V AC, with a 10kA interrupting capacity. It is a 2-pole, single-phase, bolt-on breaker from the BL Series, designed for use with Siemens P1 panelboards.

Where to buy the Siemens B2125 circuit breaker worldwide?

3G Electric supplies the Siemens B2125 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Siemens part to your facility, wherever it is located.

How to install the Siemens B2125 circuit breaker?

Install the Siemens B2125 by bolting it into a compatible Siemens P1 panelboard. Ensure the panel is de-energized, then torque the terminal screws to the manufacturer's specifications. Always follow local electrical codes and use a qualified 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 b 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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