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SIEMENS Miniature Circuit Breaker: 45 A Amps, 120/240V AC, 3 Poles - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 45 A Amps, 120/240V AC, 3 Poles

The Siemens B345H00S01 is a 45 A, 3-pole, shunt-trip miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 22kA at 240V AC. Designed for use with Siemens P1 panelboards, this…

SKU 3G-OTH-721904

Brand
SIEMENS
Item
Miniature Circuit Breaker: 45 A Amps, 120/240V AC, 3 Poles
Category
B Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
B345H00S01
Series
BL
Type
Shunt Trip
AC
120/240V
Amps
45 A
Phase
Three
Poles
3
For Use With
Siemens P1 Panelboards
Max. AIR Rating
22kA at 240V AC
AC Voltage Rating
120/240V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B345H00S01 is a 45 A, 3-pole, shunt-trip miniature circuit breaker from the BL Series, rated 120/240V AC with a maximum AIR rating of 22kA at 240V AC. Designed for use with Siemens P1 panelboards, this bolt-on breaker provides overcurrent protection and remote tripping capability for three-phase electrical systems.

Frequently Asked Questions

What is the Siemens B345H00S01 miniature circuit breaker used for?

The Siemens B345H00S01 is a 45 A, 3-pole shunt-trip miniature circuit breaker used for overcurrent protection and remote tripping in three-phase electrical systems. It is designed for use with Siemens P1 panelboards in commercial and industrial power distribution applications.

What are the specifications of the Siemens B345H00S01?

The Siemens B345H00S01 is a 45 A, 3-pole miniature circuit breaker rated 120/240V AC with a maximum AIR rating of 22kA at 240V AC. It is a bolt-on BL Series breaker with shunt-trip capability, designed for use with Siemens P1 panelboards in three-phase systems.

Where to buy the Siemens B345H00S01 worldwide?

3G Electric supplies the Siemens B345H00S01 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 Siemens shunt-trip breaker.

How to install the Siemens B345H00S01 shunt-trip breaker?

Install the Siemens B345H00S01 by bolting it into a compatible Siemens P1 panelboard. Ensure the system is de-energized, connect the line and load conductors per the wiring diagram, and wire the shunt-trip terminals to a remote control circuit. Follow all local electrical codes and Siemens installation instructions.

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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