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Siemens CQD220 Molded Case Circuit Breaker
- 20A
- 2 Pole
- DIN Rail
Siemens
CQD220
Molded Case Circuit Breaker
Brand
Siemens
SKU
CQD220
Quantity
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Siemens CQD220 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Ideal for demanding commercial facilities, the Siemens CQD220 is a 2-pole, 20A molded case circuit breaker. It utilizes proven thermal-magnetic technology to deliver accurate long-time and instantaneous protection. This unit installs into DIN rail enclosures as well as Siemens P1, P2, and P3 panelboards. With a 65kAIC rating at 240VAC, it provides robust fault protection. It is HACR, HID, and reverse-feed rated for specialized HVAC and lighting loads.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CQD220 |
| Series | CQD |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 120VAC, 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | DIN Rail Enclosures, Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersHow is the Siemens CQD220 circuit breaker mounted?
The CQD220 is designed for DIN rail mounting. It snaps onto a standard 35mm DIN rail and features a cable-in, cable-out (feed-thru) lug configuration, making it ideal for control panels and DIN rail enclosures.
Do I need special lugs to terminate aluminum wire on the CQD220?
No, the factory-installed lugs on the CQD220 are dual-rated for both copper and aluminum conductors. They accept 14 to 6 AWG copper or 12 to 6 AWG aluminum wire.
Is the CQD220 suitable for battery backups or DC control circuits?
Yes, the CQD220 is fully rated for DC applications up to 125/250VDC with a 14kA interrupting capacity, making it suitable for DC control panels and battery systems.
What is the difference between Siemens CQD and BQD circuit breakers?
While both share the same internal mechanisms and electrical ratings, the CQD series is designed for DIN rail mounting with feed-thru lugs. The BQD series is designed for bolt-on installation directly into Siemens panelboards.
Can the CQD220 be installed in Siemens panelboards?
Yes, while it is primarily a DIN rail breaker, it is compatible with Siemens P1, P2, and P3 panelboards when used with the appropriate mounting hardware kits.
Does the CQD220 provide adequate interrupting capacity for commercial 480V systems?
The CQD220 provides a 14kA interrupting capacity at 277/480VAC, which is suitable for many standard commercial applications. At 120/240VAC, it offers a higher 65kA rating.
Can I adjust the trip curve on the CQD220 for specific motor loads?
No, the CQD220 is equipped with a fixed thermal-magnetic trip unit. The Long-Time and Instantaneous (LI) protection functions are factory-set and cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 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
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Rating
1 review
- LSLuis S.ReviewingSiemens CQD350 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/29/17Excellent service
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