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Siemens CQD245 Molded Case Circuit Breaker
- 45A
- 2 Pole
- DIN Rail
Siemens
CQD245
Molded Case Circuit Breaker
Brand
Siemens
SKU
CQD245
Quantity
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Siemens CQD245 - 45A 2 Pole Molded Case Circuit Breaker
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Description
Built for demanding industrial environments, the Siemens CQD245 operates as a 45A, 2-pole molded case circuit breaker. It provides essential thermal-magnetic protection for branch circuits, machinery, and commercial electrical systems. Designed for space-saving integration, this BQD/CQD frame breaker attaches to standard 35mm DIN rails inside OEM enclosures. It comes equipped with line and load lugs for immediate wiring.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CQD245 |
| Series | CQD |
| Amperage | 45A |
| 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 |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| 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, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
5 answersWhat is the difference between Siemens CQD and BQD circuit breakers?
Both are part of the Siemens Sentron family and share similar electrical characteristics. The primary difference is the mounting style. CQD breakers are designed for 35mm DIN rail mounting, while BQD breakers are designed for panelboard or base mounting.
Can I install the CQD245 in a standard Siemens residential load center?
No. The CQD245 is a DIN rail mounted breaker intended for industrial control panels and specific DIN rail enclosures. It will not fit into standard Siemens load centers that require plug-in or bolt-on breakers.
Is the CQD245 suitable for direct current (DC) applications?
Yes, this breaker is rated for use in DC systems up to 125/250VDC, providing an interrupting capacity of 14kA for those applications.
What type of mounting rail is required for this breaker?
The CQD245 is designed to snap directly onto a standard 35mm symmetrical DIN rail, which is commonly used in industrial automation and control enclosures.
Does this breaker include ground fault or arc fault protection?
No, this is a standard thermal magnetic breaker that provides long-time overload and instantaneous short circuit protection. It does not include GFCI or AFCI safety features.
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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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