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Siemens CQD290 Molded Case Circuit Breaker
- 90A
- 2 Pole
- DIN Rail
Siemens
CQD290
Molded Case Circuit Breaker
Brand
Siemens
SKU
CQD290
Quantity
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Siemens CQD290 - 90A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial applications, the Siemens CQD290 serves as a 2-pole, 90A molded case circuit breaker from the Sentron family. It provides reliable long-time and instantaneous (LI) thermal-magnetic trip functions. This compact CQD frame breaker mounts onto standard DIN rails, making it ideal for OEM panels and control enclosures. It includes factory-installed line and load lugs. Rated 14kAIC at 480Y/277V, this unit features HACR and reverse feed ratings.Specifications
| Brand | Siemens |
|---|---|
| Part Number | CQD290 |
| Series | CQD |
| Amperage | 90A |
| 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 |
| 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, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersHow is the Siemens CQD290 circuit breaker mounted?
The CQD290 is designed for DIN rail mounting. It snaps directly onto a standard 35mm DIN rail, making it suitable for industrial control panels and DIN rail enclosures.
What is the difference between Siemens BQD and CQD circuit breakers?
The primary difference is the mounting method. BQD breakers are designed for panelboard mounting or cable-in/cable-out applications, while CQD breakers like the CQD290 are built specifically for DIN rail mounting. Both share the same internal mechanisms and 1-inch per pole width.
Is the Siemens CQD290 suitable for reverse feeding?
Yes, Siemens CQD series circuit breakers are UL Listed for reverse feed applications. They do not have line and load restrictions, allowing power to be fed from either the top or bottom terminals.
Is the CQD290 breaker HACR rated?
Yes, the Siemens CQD290 is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment branch circuits.
Does the CQD290 come with terminal lugs?
Yes, the CQD290 includes factory-installed box lugs on both the line and load sides. The lugs accept 8 to 1 AWG copper wire or 6 to 1/0 AWG aluminum wire.
Can I use the CQD290 in a standard Siemens residential load center?
No, the CQD290 is a DIN rail mounted breaker and is not compatible with standard plug-on or bolt-on residential load centers. It is intended for DIN rail enclosures and industrial control panels.
Can the trip settings on the CQD290 be adjusted?
No, the CQD290 features a fixed thermal magnetic trip unit with long-time and instantaneous (LI) functions. The trip settings 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
Ill recommend super breakers
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