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SIEMENS Miniature Circuit Breaker: 40 A Amps, 240V AC, 3 Poles - Q Series, Plug-In Siemens Miniature Circuit Breakers
SIEMENSQ Series, Plug-In Siemens Miniature Circuit Breakers

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

The Siemens Q340 is a Q Series, plug-in miniature circuit breaker rated for 40 A at 240V AC with three poles and a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this Std-type…

SKU 3G-OTH-622290

Brand
SIEMENS
Item
Miniature Circuit Breaker: 40 A Amps, 240V AC, 3 Poles
Category
Q Series, Plug-In Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
Q340
Type
Std
AC
240V
Poles
3
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens Q340 is a Q Series, plug-in miniature circuit breaker rated for 40 A at 240V AC with three poles and a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this Std-type breaker provides overcurrent protection for branch circuits in commercial and industrial electrical distribution systems.

Frequently Asked Questions

What is the Siemens Q340 miniature circuit breaker used for?

The Siemens Q340 provides overcurrent protection for branch circuits in commercial and industrial electrical distribution systems. It is designed for plug-in installation in Siemens EQ Load Centers, safeguarding wiring and equipment from overloads and short circuits.

What are the specifications of the Siemens Q340?

The Siemens Q340 is a 40 A, 240V AC, three-pole miniature circuit breaker with a 10kA interrupting capacity at 120V AC. It is a Q Series, Std-type plug-in breaker for Siemens EQ Load Centers, with MPN Q340.

Where to buy the Siemens Q340 worldwide?

3G Electric supplies the Siemens Q340 miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine Siemens equipment for your industrial electrical distribution needs.

How to install the Siemens Q340 in a load center?

Ensure the load center is de-energized before installation. Align the Q340's plug-in tabs with the bus bar slots in the Siemens EQ Load Center and press firmly until it snaps into place. Always follow 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 q series, plug-in 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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