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BQL Classic Replacement Circuit Breakers, 90A, #8-2/0 AWG, Cu/Al, Three-pole, 10 kAIC at 120/240V
Manufacturer Resources
Product Specs
- Amperage Rating:
- 90A
- Circuit Breaker Type:
- BQL
- Compliances:
- HACR Rated
- Interrupt Rating:
- 10 kAIC at 120/240 Vac
- Number Of Poles:
- Three-pole
- Product Height:
- 3 in
- Product Length Depth:
- 5 in
- Product Weight:
- .5 lb
- Product Width:
- 3 in
- Voltage Rating:
- 120/240V
- Wire Size:
- #8-2/0 AWG Cu/Al
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Circuit Breakers
- Product Type:
- Classic replacement circuit breaker
- Product Details:
- Classic replacement circuit breaker
- Product Length:
- 5 in
B-LINE BQL390 – Frequently Asked Questions
1) Will the B-Line BQL390 breaker fit a panel that takes BQL-type breakers?
The BQL390 is a BQL-type classic replacement breaker, so it goes into panels prepped for BQL breakers. It's a three-pole unit, so you need three adjacent open spaces on the bus. Rated 120/240 V, 90 A, with a 10 kAIC interrupting rating at 120/240 Vac.
2) What wire size can I land on a BQL390 90 amp breaker, and can I use aluminum?
The lugs accept #8 through 2/0 AWG and are rated Cu/Al, so either copper or aluminum conductors are acceptable. That range comfortably covers the conductor sizes used on a 90 amp three-pole feeder.
3) Is the BQL390 rated for 480 volt three-phase service?
No. The voltage rating is 120/240 V, so it belongs on a 120/240 V system only. For a 480 V or 277/480 V panel you need a breaker rated for that system voltage; installing this one there is a misapplication.
4) Can I use the BQL390 to feed a rooftop AC unit or heat pump?
Yes, it's HACR rated, so it may be used for branch circuit protection of multi-motor and combination load equipment such as air conditioners and heat pumps. At 90 A three-pole it suits larger packaged units on a 240 V system.
5) What exact part number should I order for a 90A three-pole BQL breaker?
Order B-Line model BQL390. That is the 90 amp, three-pole BQL classic replacement breaker with #8-2/0 AWG Cu/Al lugs and a 10 kAIC rating at 120/240 V.
How fast can I get the B-LINE BQL390 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 BQL390 come with a warranty?
Absolutely. The B-LINE BQL390 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 BQL390?
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 BQL390 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.