You may also like
BQL Classic Replacement Circuit Breakers, Bolt-on Breaker, 20A, #14-4 AWG, Three-pole
Manufacturer Resources
Product Specs
- Amperage Rating:
- 20A
- 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:
- #14-8 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
B-LINE BQL320 – Frequently Asked Questions
1) Is the B-Line BQL320 a bolt-on breaker or a plug-in breaker?
BQL320 is a bolt-on breaker. It bolts to the panel bus rather than clipping on, so it needs a panelboard with bolt-on bus provisions. If your panel takes plug-in breakers that snap onto the stab, this is not the one to order.
2) What wire sizes will the BQL320 20 amp breaker lugs accept?
The lugs take #14 through #8 AWG, copper or aluminum. That covers a 20 amp branch circuit run in #12 copper as well as upsized runs for voltage drop on a long pull.
3) Can I use this three-pole 20A B-Line breaker to feed a rooftop A/C or heat pump?
Yes. The BQL320 is HACR rated, which is what a nameplate calls for when a breaker feeds air conditioning or refrigeration equipment with multiple motor loads. It is three-pole, 20 amps, rated 120/240 V. Match the amperage to the maximum overcurrent protection printed on the unit nameplate.
4) Is the B-Line BQL320 a direct replacement for an existing BQL breaker in my panel?
It is a classic replacement breaker of the BQL type, so it is intended to drop into panelboards already populated with BQL bolt-on breakers. Confirm the pole count, amperage and voltage match what you are pulling out: this one is three-pole, 20 A, 120/240 V.
5) Why would I need a three-pole breaker instead of a two-pole for a 20 amp circuit?
Three poles are for three-phase loads: a three-phase motor, compressor, or a three-phase panel feeder. A two-pole 20A breaker handles single-phase 240 V loads like a small heater or a single-phase condenser. If the equipment nameplate says 3 PH, the BQL320 is the right pole count.
6) How much space does the BQL320 take up in the panel?
The breaker measures 3 in high, 3 in wide and 5 in deep, and weighs about half a pound. As a three-pole device it occupies three adjacent single-pole spaces in the panelboard, so you need three consecutive open positions on the bus.
7) Can the BQL320 be used on a 480 volt system?
No. It is rated 120/240 V, with its interrupting rating stated at 120/240 Vac. A 480Y/277 V panel needs a breaker rated for that system voltage.
How fast can I get the B-LINE BQL320 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 BQL320 come with a warranty?
Absolutely. The B-LINE BQL320 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 BQL320?
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 BQL320 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.