Eaton Quicklag Type QCHW Industrial Thermal-Magnetic Circuit Breaker,Industrial miniature circuit breaker,55 A,22 kAIC,Two-pole,120/240 V,Thermal-magnetic,Cable-in,QCHW
Manufacturer Resources
Product Specs
- Amperage Rating:
- 55 A
- Certifications:
- UL Listed
- Circuit Breaker Type:
- QCHW
- Connection:
- Cable-in/cable-out
- Interrupt Rating:
- 22 kAIC
- Number Of Poles:
- Two-pole
- Product Height:
- 5 in
- Product Length Depth:
- 3.8 in
- Product Weight:
- 2.2 lb
- Product Width:
- .75 in
- Trip Type:
- Thermal-magnetic
- Voltage Rating:
- 120/240 V
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Circuit Breakers
- Product Type:
- Industrial miniature circuit breaker
- Product Details:
- Industrial miniature circuit breaker
B-LINE QCHW2055 – Frequently Asked Questions
1) Will the Eaton Quicklag QCHW2055 work on a 240V single-phase panel?
Yes. The QCHW2055 is rated 120/240 V and is a two-pole breaker, so it lands across both legs of a 120/240 V single-phase system for a 240 V load, or serves a 120/240 V multiwire circuit. It will not serve a 480 V or 600 V system.
2) Does this Quicklag breaker bolt into a load center, or does it wire straight to cable?
The QCHW2055 is a cable-in/cable-out design. Conductors land on terminals at both the line and load end rather than the breaker clipping onto a panel bus, so it is used as a standalone or enclosed industrial breaker. If you need a breaker that plugs onto the bus of a residential-style load center, this is not that type.
3) I need to replace a QCHW two-pole 55 amp breaker. Is this the same part?
The part number to match is QCHW2055: Quicklag Type QCHW, two-pole, 55 A, 22 kAIC at 120/240 V, thermal-magnetic, cable-in/cable-out. If the breaker coming out carries that catalog number, this is the direct replacement. Check the interrupting rating stamped on the old device too, since QCHW frames are also built in other kAIC ratings and a lower-rated substitute is not acceptable.
4) What does thermal-magnetic tripping mean for a 55 amp motor or heater circuit?
Thermal-magnetic means two trip elements in one breaker: a bimetal that responds to sustained overload with an inverse time delay, and a magnetic element that trips instantly on a short circuit. At 55 A, that lets the breaker ride through normal inrush on a heater or motor start while still clearing a bolted fault fast.
5) Is the Eaton Quicklag QCHW2055 UL Listed for an inspected commercial job?
UL Listed, yes. That is the certification carried on the QCHW2055 industrial miniature circuit breaker, which is what an inspector looks for on a 120/240 V branch or feeder device in a commercial or industrial installation.
6) Can I use a 55 amp breaker where the drawing calls for 50 or 60 amps?
No. The QCHW2055 is fixed at 55 A; the trip rating is not adjustable. Substituting it for a specified 50 A device oversizes the overcurrent protection on that conductor, and dropping it in place of a 60 A device will nuisance trip. Order the amperage the design calls for.
How fast can I get the B-LINE QCHW2055 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE QCHW2055 come with a warranty?
Absolutely. The B-LINE QCHW2055 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE QCHW2055?
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