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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 70A
- Certifications:
- UL Listed
- Circuit Breaker Type:
- QHCX
- Interrupt Rating:
- 42 kAIC
- Number Of Poles:
- Three-pole
- Product Height:
- 4.8 IN
- Product Length Depth:
- 2.9 IN
- Product Weight:
- 3.4 LB
- Product Width:
- 1 IN
- Trip Type:
- Thermal-magnetic
- Voltage Rating:
- 240V
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Circuit Breakers
- Product Type:
- Miniature circuit breaker
- Product Details:
- Miniature circuit breaker
- Product Length:
- 2.9 in
B-LINE QHCX3070H – Frequently Asked Questions
1) Is the QHCX3070H breaker a three-phase breaker, and what voltage is it rated for?
The QHCX3070H is a three-pole, 70A breaker rated 240V, so it is intended for three-phase 240V circuits rather than single-phase branch work. If you need a two-pole for a 240V single-phase load or a single-pole for 120V, this is the wrong part.
2) Will a 42 kAIC breaker satisfy a high fault current service?
Yes. The QHCX3070H carries a 42 kAIC interrupt rating, which is a high-fault-current rating for a miniature breaker and covers services where standard 10 kAIC devices would be under-rated. Match it against the available fault current calculated at your panel location.
3) What exact part number do I order to match an existing QHCX breaker in my panel?
Order by MPN QHCX3070H. It is the QHCX breaker type, three-pole, 70A, 240V, 42 kAIC. Any of those four values differing from what is in the panel means a different catalogue number.
4) How many spaces will this Eaton QC breaker take up in the panel?
It is a three-pole device measuring 1 inch across the width, 4.8 inches high and 2.9 inches deep, so plan the panel interior around those dimensions. Weight is 3.4 lb.
5) Is the QHCX3070H UL Listed for a commercial or institutional installation?
Yes, the QHCX3070H is UL Listed, which is what most inspectors and facility specs require for a branch breaker in commercial and institutional panels.
6) What does thermal-magnetic trip mean for this breaker on motor and feeder loads?
Thermal-magnetic is the trip type on the QHCX3070H: a bimetal element handles sustained overloads with an inverse time delay, while the magnetic element trips instantly on a short circuit. That combination rides through normal inrush without nuisance tripping but still clears a bolted fault fast. If you need adjustable instantaneous settings or motor-circuit-protector behaviour, you want a different device type.
7) Where can I get the manufacturer spec sheet for the QHCX3070H?
Eaton publishes a QHCX3070H spec sheet, and a direct link to that PDF is provided with the product information. It is the document to hand an engineer reviewing the panel schedule.
How fast can I get the B-LINE QHCX3070H delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
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 QHCX3070H come with a warranty?
Absolutely. The B-LINE QHCX3070H 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 QHCX3070H?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE QHCX3070H from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.