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SIEMENS Miniature Circuit Breaker: 40 A Amps, 120V AC, 1 Poles - Q Series, Plug-In Siemens Miniature Circuit Breakers
SIEMENSQ Series, Plug-In Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 40 A Amps, 120V AC, 1 Poles

The Siemens Q140 is a Q Series, plug-in miniature circuit breaker rated 40 A at 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this Std-type breaker…

SKU 3G-OTH-622289

Brand
SIEMENS
Item
Miniature Circuit Breaker: 40 A Amps, 120V AC, 1 Poles
Category
Q Series, Plug-In Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
Q140
Type
Std
AC
120V
Poles
1
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens Q140 is a Q Series, plug-in miniature circuit breaker rated 40 A at 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this Std-type breaker provides overcurrent protection in a compact 1-pole form factor.

Frequently Asked Questions

What is the Siemens Q140 miniature circuit breaker used for?

The Siemens Q140 is a single-pole, 40 A miniature circuit breaker used for overcurrent protection in residential and commercial electrical panels. It is designed for plug-in installation in Siemens EQ Load Centers, safeguarding branch circuits against overloads and short circuits at 120V AC.

What are the specifications of the Siemens Q140?

The Siemens Q140 is a Q Series, plug-in miniature circuit breaker rated 40 A at 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. It is a Std-type breaker designed for use in Siemens EQ Load Centers and carries the MPN Q140.

Where to buy the Siemens Q140 circuit breaker worldwide?

3G Electric supplies the Siemens Q140 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Siemens part to your facility, regardless of location.

How to install the Siemens Q140 in a load center?

To install the Siemens Q140, ensure the panel is de-energized, then align the breaker's plug-in tabs with the bus bar in a Siemens EQ Load Center. Press firmly until it snaps into place. Always follow local electrical codes and the manufacturer's instructions for safe 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 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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Miniature Circuit Breaker: 20 A Amps, 120/240V AC, 2 Poles (MPN QF220A). Key specifications — attr196014: 20 A; attr196015: 120/240V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Load Centers; attr196016: Single; attr232503: QF.
Miniature Circuit Breaker: 25 A Amps, 120/240V AC, 2 Poles, Std (MPN Q225). Key specifications — attr196014: 25 A; attr196015: 120/240V AC; attr196017: 10kA at 120V AC; attr196018: Siemens EQ Load Centers; attr196016: Single; attr232503: Q.
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Miniature Circuit Breaker: 25 A Amps, 120/240V AC, 2 Poles, Std (MPN Q225). Key specifications — attr196014: 25 A; attr196015: 120/240V AC; attr196017: 10kA at 120V AC; attr196018: Siemens EQ Load Centers; attr196016: Single; attr232503: Q.
Miniature Circuit Breaker: 125 A Amps, 120/240V AC, 2 Poles, Std (MPN Q2125). Key specifications — attr196014: 125 A; attr196015: 120/240V AC; attr196017: 10kA at 120V AC; attr196018: Siemens EQ Load Centers; attr196016: Single; attr232503: Q.
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Miniature Circuit Breaker: 15 A Amps, 120V AC, 1 Poles (MPN QF115A). Key specifications — attr196014: 15 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Load Centers; attr196016: Single; attr232503: QF.
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Miniature Circuit Breaker: 15 A Amps, 120V AC, 1 Poles (MPN QF115A). Key specifications — attr196014: 15 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Load Centers; attr196016: Single; attr232503: QF.
Miniature Circuit Breaker: 30 A Amps, 120V AC, 1 Poles, Std (MPN Q130). Key specifications — attr196014: 30 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens EQ Load Centers; attr196016: Single; attr232503: Q.
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