Eaton / Cutler-Hammer QBHW3020HS Miniature Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer QBHW3020HS - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for commercial power distribution, the Eaton Quicklag QBHW3020HS provides reliable thermal-magnetic overcurrent protection. This three-pole miniature circuit breaker handles demanding electrical loads safely. It mounts securely into Eaton Pow-R-Line and legacy Westinghouse panelboards via a standard bolt-on connection. The box lug terminals accept 14-4 AWG wire.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW3020HS |
| Series | QBHW |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhich panelboards are compatible with the QBHW3020HS circuit breaker?
This bolt-on miniature circuit breaker is designed for use in Eaton Pow-R-Line panelboards and legacy Westinghouse panelboards that accept BAB frame types.
What does the HS suffix indicate on the QBHW3020HS catalog number?
The HS suffix indicates that this breaker includes a factory-installed shunt trip accessory, which operates on 120V, 208V, or 240V AC to allow remote tripping of the breaker.
How does the QBHW3020HS connect to the panelboard bus?
It features a bolt-on connection, which provides a secure, vibration-resistant mount directly to the panelboard bus.
What wire sizes are accepted by the box lugs on this 20A breaker?
The terminals on this breaker accept wire gauges ranging from 14 AWG to 4 AWG.
Is the QBHW3020HS suitable for systems requiring a high interrupting rating?
Yes, it provides a 22kAIC interrupting rating at 240V AC, making it suitable for commercial and industrial applications with higher fault current levels compared to standard 10kAIC breakers.
Can I use this Eaton breaker to replace an older Cutler-Hammer QBHW3020HS?
Yes. Eaton acquired Cutler-Hammer, and they manufacture this breaker to the exact same specifications. It is a direct, interchangeable replacement for legacy Cutler-Hammer models with the same catalog number.
What type of trip mechanism does the QBHW3020HS use?
It utilizes a fixed thermal-magnetic trip unit, providing long-time protection against overloads and instantaneous protection against short circuits.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 11 reviews.
- CMCalvin M.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 4 out of 5 stars7/22/26SuperBreakers
SuperBreakers haven't disappointed me yet. They always have what I need and very timely deliveries!
- WJWilliam J.Verified BuyerReviewingEaton / Cutler-Hammer QBHW1020 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/2/26Emergency-Overnight Purchase and Delivery
I needed breaker ASAP and SuperBreakers made it happen!
- NSNathan S.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2040S - 40A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/19/26Arrived Just in Time
Always satisfied with my SuperBreakers purchases!
- PMPete M.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2015 - 15A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/25Great service and very helpful
Knowledgable staff, easy to use website. Quick shipping turnaround.
- BCBrian C.ReviewingEaton / Cutler-Hammer QBHW2020 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/9/23plug & play
Your website is very user friendly parts arrived promptly exact same parts no issues