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Siemens CQD345 Molded Case Circuit Breaker
- 45A
- 3 Pole
- DIN Rail
Siemens
CQD345
Molded Case Circuit Breaker
Brand
Siemens
SKU
CQD345
Quantity
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Siemens CQD345 - 45A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial use, the Siemens CQD345 is a 3-pole, 45A molded case circuit breaker. It features fixed thermal-magnetic trip elements for consistent LI protection. This Sentron series breaker mounts onto standard DIN rails within OEM panels and enclosures. The included lugs accommodate 8-1 AWG copper or 6-1/0 AWG aluminum wiring. With a 14 kA interrupting capacity at 480Y/277VAC, it handles demanding loads. The breaker is HACR rated and approved for reverse feed applications.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CQD345 |
| Series | CQD |
| Amperage | 45A |
| 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, OEM Panels |
| 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 Thermal, Fixed Magnetic |
| 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, HID Rated, Reverse Feed, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
5 answersWhat is the difference between the Siemens CQD345 and the BQD345?
Both are 45A, 3-pole breakers in the same frame family, but they feature different mounting styles. The CQD345 is designed for DIN rail mounting in OEM panels and control enclosures, while the BQD345 is a bolt-on breaker used primarily in Siemens panelboards.
What type of DIN rail is required to mount the CQD345?
This breaker is designed to snap directly onto standard 35mm DIN rail, making it suitable for industrial control panels, automation equipment, and custom OEM enclosures.
Can the CQD345 be used in direct current applications?
Yes, this breaker is rated for use in DC circuits up to 125/250VDC, providing a 14kA interrupting capacity for those specific applications.
Are the terminal lugs included with this breaker?
Yes, the CQD345 comes with factory-installed feed-thru lugs on both the line and load sides. The lugs are rated to accept 8 to 1 AWG copper wire or 6 to 1/0 AWG aluminum wire.
Can I install the CQD345 in a standard Siemens load center?
No, this breaker is strictly for DIN rail mounting. It will not fit in standard residential or commercial Siemens load centers that require plug-on or bolt-on branch breakers.
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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
Ill recommend super breakers
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