CQD320 - 20Amp Circuit Breaker
- 20 Amp
- 14k @ 480VAC; 65k @ 240VAC
- 3 Pole
Purchase Options: New In Box
CQD320 - 20Amp Circuit Breaker Description
CQD320 - 20Amp Circuit Breaker
The Siemens CQD320 is a 3-pole, 20 amp circuit breaker designed for 480/277V systems, most often found in Siemens CQD panelboard installations. It’s the kind of component that shows up when you’re working inside an existing setup and need a straightforward, like-for-like replacement that keeps everything aligned with the original panel design.
In everyday applications, this breaker is typically used in commercial lighting circuits, small three-phase loads, and general branch circuit protection. The 20A rating fits lighter electrical loads, while the 14kA interrupt rating provides standard protection for faults in this voltage range. It’s a dependable fit for maintenance work where consistency matters more than redesigning or upgrading the system.
Because it mounts on DIN rail, installation stays clean and efficient. It locks into place easily, keeps panel layouts organized, and helps make future servicing a lot more manageable—especially in systems that see ongoing maintenance.
Key Features and Benefits
- Siemens CQD series breaker designed for existing panel systems
- 20 amp, 3-pole configuration for 480/277V applications
- 14kA interrupt rating for standard commercial protection
- DIN rail mounting for quick, clean installation
- Commonly used in lighting and small-load three-phase circuits
- Ideal for like-for-like replacement in CQD panels
- Helps maintain consistency in installed electrical systems
- Compact design supports neat, organized panel layouts
- Makes maintenance and future breaker swaps easier
Technical Specifications
- Model: CQD320
- Series: Siemens CQD
- Amperage: 20A
- Poles: 3
- Voltage Rating: 480/277V AC
- Interrupt Rating: 14kAIC
- Mounting Type: DIN rail
- Application: Three-phase branch circuit protection
Material Compliance and Certifications
Manufactured in accordance with applicable UL and IEC standards for molded case circuit breakers used in commercial electrical systems. Installation should be carried out by qualified personnel in compliance with local electrical codes and safety requirements.
Where It Works Best
- Existing Siemens CQD panelboard systems
- Commercial lighting and low-load distribution circuits
- 480V three-phase branch circuits
- 277V lighting control systems
- Electrical maintenance and replacement work
- Industrial and commercial control panels
- DIN rail panel layouts where organization matters
- Like-for-like CQD series breaker replacement jobs
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Width:3.0
- Height:4.9
- Depth:2.88
- Poles:3
- Amperes:20
- A.I.C. Rating & Volts:14k @ 480VAC; 65k @ 240VAC
- Type:CQD
- Approx Dimensions:3.00"W x 4.9"L x 2.88"D
- Additional Notes:40°C, HACR rated, 33mm DIN Rail Mountable, Cable In - Cable Out, Molded Case Circuit Breaker,
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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