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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 B120H is a B Series, bolt-on miniature circuit breaker rated for 20 A at 120/240V AC, single-phase, 1 pole, with a maximum AIR rating of 22kA at 120/240V AC. Designed for use with Siemens P1 panelboards…

SKU 3G-OTH-609644

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
B120H
Series
BL
Type
Std
AC
120/240V
Amps
20 A
Phase
Single
Poles
1
For Use With
Siemens P1 Panelboards
Max. AIR Rating
22kA at 120/240V AC
AC Voltage Rating
120/240V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B120H is a B Series, bolt-on miniature circuit breaker rated for 20 A at 120/240V AC, single-phase, 1 pole, with a maximum AIR rating of 22kA at 120/240V AC. Designed for use with Siemens P1 panelboards, this BL-series breaker provides overcurrent protection in industrial electrical distribution systems.

Frequently Asked Questions

What is the Siemens B120H miniature circuit breaker used for?

The Siemens B120H is a bolt-on miniature circuit breaker providing overcurrent protection in industrial electrical distribution systems. It is designed for use with Siemens P1 panelboards in single-phase, 120/240V AC applications, safeguarding branch circuits from overloads and short circuits.

What are the specifications of the Siemens B120H circuit breaker?

The Siemens B120H is a 1-pole, 20 A miniature circuit breaker rated for 120/240V AC, single-phase. It has a maximum AIR rating of 22kA at 120/240V AC and is part of the BL series. It is designed for use with Siemens P1 panelboards.

Where to buy the Siemens B120H circuit breaker worldwide?

3G Electric supplies the Siemens B120H miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this genuine Siemens BL-series breaker for your electrical distribution needs.

How to install the Siemens B120H circuit breaker?

Install the Siemens B120H by bolting it into a compatible Siemens P1 panelboard. Ensure the panel is de-energized before installation. Connect the line and load conductors to the breaker terminals, torque to manufacturer specifications, and verify proper seating. Always follow local electrical codes and use qualified personnel.

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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