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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 B120HH is a 20 A, single-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 65kA at 120V AC. Designed for bolt-on installation in Siemens P1 panelboards, it…

SKU 3G-OTH-609661

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
B120HH
Series
BL
Type
Std
AC
120/240V
Amps
20 A
Phase
Single
Poles
1
For Use With
Siemens P1 Panelboards
Max. AIR Rating
65kA at 120V AC
AC Voltage Rating
120/240V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B120HH is a 20 A, single-pole miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 65kA at 120V AC. Designed for bolt-on installation in Siemens P1 panelboards, it provides overcurrent protection in single-phase electrical systems.

Frequently Asked Questions

What is the Siemens B120HH miniature circuit breaker used for?

The Siemens B120HH is a 20 A, single-pole miniature circuit breaker used for overcurrent protection in single-phase electrical systems. It is designed for bolt-on installation in Siemens P1 panelboards, providing reliable protection in commercial and industrial power distribution applications.

What are the specifications of the Siemens B120HH circuit breaker?

The Siemens B120HH is rated 20 A, 120/240V AC, single-phase, 1 pole, with a maximum AIR rating of 65kA at 120V AC. It is part of the BL Series and is designed for use with Siemens P1 panelboards. It provides standard overcurrent protection in bolt-on configurations.

Where to buy the Siemens B120HH circuit breaker worldwide?

3G Electric supplies the Siemens B120HH miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this genuine Siemens part.

How to install the Siemens B120HH circuit breaker?

Install the Siemens B120HH by ensuring the panelboard is de-energized, then bolt the breaker securely into the Siemens P1 panelboard bus. Follow standard electrical safety practices and local codes. Always verify the breaker's 20 A rating matches the circuit load before installation.

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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