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

The Siemens BF120A is a 1-pole, 20 A, 120V AC miniature circuit breaker from the BF Series, designed as a bolt-on ground fault circuit interrupter for use with Siemens panelboards. It carries a maximum AIR rating of…

SKU 3G-OTH-609678

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

SIEMENS
Manufacturer Part Number
BF120A
Series
BF
Type
Ground Fault Circuit Interrupter
AC
120V
Amps
20 A
Phase
Single
Poles
1
For Use With
Siemens Panelboards
Max. AIR Rating
10kA at 120V AC
AC Voltage Rating
120V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BF120A is a 1-pole, 20 A, 120V AC miniature circuit breaker from the BF Series, designed as a bolt-on ground fault circuit interrupter for use with Siemens panelboards. It carries a maximum AIR rating of 10kA at 120V AC and operates on single-phase power.

Frequently Asked Questions

What is the Siemens BF120A miniature circuit breaker used for?

The Siemens BF120A is a 1-pole, 20 A, 120V AC ground fault circuit interrupter (GFCI) designed for bolt-on installation in Siemens panelboards. It protects branch circuits from ground faults and overcurrents in single-phase commercial or industrial applications.

What are the specifications of the Siemens BF120A circuit breaker?

The Siemens BF120A is a 20 A, 120V AC, 1-pole miniature circuit breaker with a maximum AIR rating of 10kA at 120V AC. It is a bolt-on ground fault circuit interrupter from the BF Series, for use with Siemens panelboards on single-phase power.

Where to buy the Siemens BF120A circuit breaker worldwide?

3G Electric supplies the Siemens BF120A 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 to order this genuine Siemens part for your panelboard.

How to install the Siemens BF120A ground fault circuit interrupter?

Install the Siemens BF120A by turning off power to the panelboard, then bolting the breaker onto the bus bar in the designated Siemens panelboard slot. Connect the load and line wires per the wiring diagram, and test the GFCI function after installation. Always follow local electrical codes.

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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