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Siemens CQD380 Molded Case Circuit Breaker
- 80A
- 3 Pole
- DIN Rail
Siemens
CQD380
Molded Case Circuit Breaker
Brand
Siemens
SKU
CQD380
Quantity
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Siemens CQD380 - 80A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens CQD380 provides robust thermal-magnetic protection in a compact BQD/CQD frame. This 3-pole, 80A molded case circuit breaker features a 14 kAIC interrupt rating at 480Y/277V (65 kAIC at 240V) and is HACR rated for HVAC equipment. It installs seamlessly onto standard DIN rails, making it an ideal choice for OEM control panels and custom enclosures. Includes line and load lugs for straightforward wiring.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CQD380 |
| Series | CQD |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 120VAC, 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | CQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | DIN Rail Enclosures |
| Wire Gauge | 8-1 AWG (Cu), 6-1/0 AWG (Al) |
| Max Wire | 1 AWG (Cu), 1/0 AWG (Al) |
| Min Wire | 8 AWG (Cu), 6 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, RoHS, UL 489 |
| Approval | CSA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersHow is the Siemens CQD380 mounted?
The CQD380 is designed for 35mm DIN rail mounting. It features a feed-thru, cable-in and cable-out lug configuration, making it ideal for control panels and enclosures without a traditional panelboard bus.
What is the difference between Siemens CQD and BQD circuit breakers?
While both share similar electrical characteristics and frame sizes, the CQD series is designed for 35mm DIN rail mounting with feed-thru lugs. The BQD series is designed for bolt-on panelboard mounting in Siemens lighting panels.
Can the CQD380 be used in reverse feed applications?
Yes, Siemens CQD series breakers are UL Listed for reverse feed applications, allowing them to be back-fed if required by your system design.
Does the CQD380 include adjustable trip settings?
No, the CQD380 features a fixed thermal-magnetic trip unit. Both the long-time thermal and instantaneous magnetic trip functions are factory set and cannot be adjusted in the field.
Can the CQD380 be used in DC power systems?
Yes, the CQD380 is rated for DC applications. It provides a 14kA interrupting rating at 125/250VDC, making it suitable for specific industrial control and battery systems.
How does the interrupting capacity of the CQD380 change based on voltage?
The CQD380 provides a standard 14kAIC rating at 480/277VAC. However, when applied in lower voltage systems, the interrupting capacity increases to 65kAIC at 240VAC and 120VAC.
Is the CQD380 suitable for HVAC equipment?
Yes, Siemens CQD breakers in this amperage range are HACR rated, meaning they are approved for use with heating, air conditioning, and refrigeration equipment.
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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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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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