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SIEMENS Miniature Circuit Breaker: 20 A Amps, 120/240V AC, 1 Poles - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 20 A Amps, 120/240V AC, 1 Poles

The Siemens B120 is a 20 A, single-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for bolt-on installation in Siemens P1 Panelboards…

SKU 3G-OTH-609612

Brand
SIEMENS
Item
Miniature Circuit Breaker: 20 A Amps, 120/240V AC, 1 Poles
Category
B Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
B120
Series
BL
Type
Std
AC
120/240V
Amps
20 A
Phase
Single
Poles
1
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 B120 is a 20 A, single-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for bolt-on installation in Siemens P1 Panelboards, it provides overcurrent protection in single-phase applications.

Frequently Asked Questions

What is the Siemens B120 miniature circuit breaker used for?

The Siemens B120 provides overcurrent protection in single-phase, 120/240V AC electrical systems. It is designed for bolt-on installation in Siemens P1 Panelboards, making it suitable for commercial and industrial branch-circuit protection where reliable circuit interruption is required.

What are the specifications of the Siemens B120 circuit breaker?

The Siemens B120 is a 20 A, single-pole miniature circuit breaker rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is part of the BL Series and is designed for use with Siemens P1 Panelboards in single-phase applications.

Where to buy the Siemens B120 circuit breaker worldwide?

3G Electric supplies the Siemens B120 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle logistics, customs clearance, and delivery to your site. Contact us to order this genuine Siemens component for your panelboard needs.

How to install the Siemens B120 bolt-on circuit breaker?

The Siemens B120 is a bolt-on type breaker designed for direct installation into Siemens P1 Panelboards. Ensure the panel is de-energized, align the breaker with the bus bar, and tighten the bolt securely. Follow Siemens installation instructions and local electrical codes for safe overcurrent protection.

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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