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SIEMENS Q2020 Q Series Duplex Miniature Circuit Breaker - Q Series, Plug-In Siemens Miniature Circuit Breakers
SIEMENSQ Series, Plug-In Siemens Miniature Circuit Breakers

SIEMENS Q2020 Q Series Duplex Miniature Circuit Breaker

The Siemens Q2020 is a Q Series Duplex miniature circuit breaker rated 20/20 A, 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this plug-in breaker…

SKU 3G-OTH-622279

Also listed as: Q 2020 · Q-2020

Brand
SIEMENS
Item
Q2020 Q Series Duplex Miniature Circuit Breaker
Category
Q Series, Plug-In Siemens Miniature Circuit Breakers
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SIEMENS
Manufacturer Part Number
Q2020
Type
Duplex
AC
120V
Poles
1

Technical Documents

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

Product Description

The Siemens Q2020 is a Q Series Duplex miniature circuit breaker rated 20/20 A, 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. Designed for use in Siemens EQ Load Centers, this plug-in breaker provides overcurrent protection in a compact duplex configuration.

Frequently Asked Questions

What is the Siemens Q2020 miniature circuit breaker used for?

The Siemens Q2020 duplex breaker provides overcurrent protection in residential and light commercial load centers. Its compact design fits two 20 A circuits into one pole space, ideal for Siemens EQ panels where space is limited.

What are the specifications of the Siemens Q2020 breaker?

The Siemens Q2020 is a Q Series duplex breaker rated 20/20 A, 120V AC, single-pole, with a 10kA interrupting capacity at 120V AC. It plugs into Siemens EQ Load Centers and is UL-listed for branch circuit protection.

Where to buy the Siemens Q2020 breaker worldwide?

3G Electric supplies the Siemens Q2020 breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this genuine Siemens part.

How to install a Siemens Q2020 duplex breaker?

Ensure the load center is de-energized. Align the breaker's plug-on jaws with the bus bar stab and press firmly until seated. Connect the load wires to the screw terminals, torquing to manufacturer specs. 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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Bolt-on miniature circuit breaker from the BQH series, rated 20 A at 120 V AC with a single pole. High interrupting capacity suitable for overcurrent protection in commercial and industrial electrical distribution systems. Designed for use in Siemens panelboards
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Bolt-on miniature circuit breaker for overcurrent protection in branch circuits. Rated 30 A at 120/240V AC, 2 poles, Std type. Suitable for single-phase electrical distribution systems in commercial and industrial panelboards
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Bolt-on miniature circuit breaker for branch circuit protection in panelboards. Rated 10 A at 120/240V AC, 2 poles, with a 10kA interrupting capacity. Trips during overloads or short circuits to safeguard wiring and equipment
Bolt-on miniature circuit breaker for overcurrent protection in panelboards. Rated 70 A at 240V AC, 3 poles, with shunt trip. Suitable for branch circuit protection in commercial and industrial electrical distribution systems
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Bolt-on miniature circuit breaker for overcurrent protection in panelboards. Rated 70 A at 240V AC, 3 poles, with shunt trip. Suitable for branch circuit protection in commercial and industrial electrical distribution systems
Single-pole bolt-on miniature circuit breaker rated 50 A at 120V AC. High interrupting capacity suitable for overcurrent protection in commercial and industrial electrical distribution systems. Part of the BQH Series for use in Siemens panelboards
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Single-pole bolt-on miniature circuit breaker rated 50 A at 120V AC. High interrupting capacity suitable for overcurrent protection in commercial and industrial electrical distribution systems. Part of the BQH Series for use in Siemens panelboards

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