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Siemens CQD120 Molded Case Circuit Breaker

  • 20A
  • 1 Pole
  • DIN Rail
Siemens CQD120
Molded Case Circuit Breaker
Brand Siemens
SKU CQD120
Select Item Condition
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  • 20A
  • 1 Pole
  • DIN Rail

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Siemens CQD120 - 20A 1 Pole Molded Case Circuit Breaker

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$104.40 In Stock

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Description

A reliable choice for 20A circuits, this SENTRON series breaker provides essential overcurrent and short-circuit defense. Engineered for DIN rail mounting, the single-pole unit fits easily into commercial enclosures and control panels. It utilizes a fixed thermal-magnetic trip unit and comes equipped with standard lugs for straightforward wiring. Rated for 65kAIC at 240VAC, it delivers high-performance protection. The breaker is HACR, HID, and SWD rated for HVAC and lighting loads.

Specifications

Key specifications
Brand Siemens
Part Number CQD120
Series CQD
Amperage 20A
Poles 1
Mounting Style DIN Rail
Voltage 120VAC, 240VAC, 277VAC, 125VDC
Phase 1
AIC Rating 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 277VAC, 14kA @ 125VDC
Fit and installation
Frame Type CQD
Terminal Type Lugs
For Use With DIN Rail Enclosures
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, HACR, HID, IEC 60947-2, RoHS, SWD, UL 489
Approval CE, CSA, UL
Temp Rating 40C
Construction Features HACR Rated, HID Rated, SWD Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism

Product FAQs

5 answers
What is the difference between Siemens BQD and CQD circuit breakers?

Both share the same 1-inch per pole frame size, but they differ in mounting and terminal configurations. The CQD series mounts on a DIN rail or surface and includes lugs on both the line and load ends. The BQD series is designed for panelboards and only includes lugs on the load end.

Is the CQD120 rated for switching lighting loads?

Yes. As a 1-pole 20A breaker, it is SWD (Switching Duty) rated for fluorescent lighting and HID rated for high-intensity discharge lighting. It is also HACR rated for heating, air conditioning, and refrigeration equipment.

Can the Siemens CQD120 be reverse fed?

Yes. Siemens CQD molded case circuit breakers are UL Listed for reverse feed applications.

Can I add a shunt trip or auxiliary switch to the CQD120?

No. Internal accessories such as shunt trips, auxiliary switches, and alarm switches mount on the left side of the breaker and are not supported on single-pole CQD models.

How is the CQD120 secured inside a control panel?

The breaker can be independently mounted onto a standard customer-supplied DIN rail or bolted directly to a backplate or surface.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • LS
    Luis S.
    Flag of United States
    Reviewing
    Siemens CQD350 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/29/17
    Excellent service

    Ill recommend super breakers

    Forever...

    Good prices and fast delivery..