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SIEMENS Miniature Circuit Breaker: 40 A Amps, 240V AC, 3 Poles - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 40 A Amps, 240V AC, 3 Poles

The Siemens B340 is a 40 A, 240V AC, 3-pole miniature circuit breaker from the BL Series, designed for bolt-on use with Siemens P1 Panelboards. It features a maximum AIR rating of 10kA at 240V AC and is a…

SKU 3G-OTH-721878

Brand
SIEMENS
Item
Miniature Circuit Breaker: 40 A Amps, 240V AC, 3 Poles
Category
B Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
B340
Series
BL
Type
Std
AC
240V
Amps
40 A
Phase
Three
Poles
3
For Use With
Siemens P1 Panelboards
Max. AIR Rating
10kA at 240V AC
AC Voltage Rating
240V AC
View Full Spec Sheet

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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B340 is a 40 A, 240V AC, 3-pole miniature circuit breaker from the BL Series, designed for bolt-on use with Siemens P1 Panelboards. It features a maximum AIR rating of 10kA at 240V AC and is a standard-type, three-phase breaker.

Frequently Asked Questions

What is the Siemens B340 miniature circuit breaker used for?

The Siemens B340 is a 40 A, 240V AC, 3-pole miniature circuit breaker designed for bolt-on use in Siemens P1 Panelboards. It provides overcurrent protection in three-phase commercial and industrial electrical distribution systems, with a maximum AIR rating of 10kA at 240V AC.

What are the specifications of the Siemens B340 circuit breaker?

The Siemens B340 is a 40 A, 240V AC, 3-pole miniature circuit breaker from the BL Series. It has a maximum AIR rating of 10kA at 240V AC, is a standard-type, three-phase breaker, and is designed for bolt-on use with Siemens P1 Panelboards.

Where to buy the Siemens B340 circuit breaker worldwide?

3G Electric supplies the Siemens B340 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for international orders. Contact us to source this genuine Siemens BL Series breaker for your project.

How to install the Siemens B340 circuit breaker?

The Siemens B340 is a bolt-on type miniature circuit breaker designed for use with Siemens P1 Panelboards. Ensure the panel is de-energized before installation. Align the breaker with the bus bar and secure it with the mounting screws. Follow all applicable electrical codes and manufacturer guidelines.

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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