Eaton / Cutler-Hammer GHB3020V Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB3020V
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB3020V
Quantity
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Eaton / Cutler-Hammer GHB3020V - 20A 3 Pole Molded Case Circuit Breaker
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Description
Built for high-temperature applications, the Eaton GHB3020V is a 3-pole, 20A molded case circuit breaker from the Series C G-Frame family. It provides dependable thermal-magnetic protection for industrial and commercial electrical systems. This unit mounts into Eaton Pow-R-Line 2 (PRL2), Pow-R-Line 3 (PRL3), and Series C panelboards. Featuring a specialized 50°C ambient calibration, it prevents nuisance tripping in hot environments while maintaining a 14kAIC rating at 480Y/277VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHB |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line 2 (PRL2) Panelboards, Eaton Pow-R-Line 3 (PRL3) Panelboards, Series C Panelboards |
| Wire Gauge | 14-10 AWG (Cu/Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 50C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 50C Ambient Calibration |
Product FAQs
6 answersWhat does the V suffix in the GHB3020V catalog number indicate?
The V suffix indicates that this thermal-magnetic circuit breaker is calibrated for a 50°C (122°F) ambient operating temperature, rather than the standard 40°C. This is often required for specific industrial or high-temperature environments.
Which panelboards are compatible with the GHB3020V circuit breaker?
This G-frame breaker is designed for use in Eaton Pow-R-Line 2 (PRL2), Pow-R-Line 3 (PRL3), and Series C panelboards.
How is the GHB3020V installed in a panelboard?
It features a bolt-on connection, meaning it fastens directly to the panelboard busbars using screws. This provides a secure, vibration-resistant connection typical in commercial and industrial applications.
Is the Eaton GHB3020V rated for direct current (DC) systems?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for 125/250VDC systems with a 14kAIC interrupting capacity.
Are the trip settings adjustable on the GHB3020V?
No, this breaker features a fixed thermal and fixed magnetic trip unit (LI, Long-Time and Instantaneous). The trip settings are factory-calibrated and cannot be adjusted in the field.
Is the GHB3020V a direct replacement for older Cutler-Hammer or Westinghouse GHB breakers?
Yes, Eaton acquired the Cutler-Hammer and Westinghouse breaker lines. The GHB3020V is a direct, drop-in replacement for legacy Cutler-Hammer and Westinghouse breakers with the exact same catalog number.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 30 reviews.
Reviews Summary
Generated by AI from 30 most recent customer reviews
Last updated 9/20/26
Customers say these breakers function reliably and arrive quickly with proper packaging. The ordering process is straightforward, and products consistently match descriptions. Many reviews highlight fast shipping, competitive pricing, and availability. Users appreciate the condition of refurbished units and easy online ordering. One customer reported receiving an incorrect amperage breaker despite paying for expedited delivery. Another noted disappointment when duplicate orders were not consolidated to reduce freight costs. Overall, customers value the quick procurement and dependable product quality.
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Rating
30 reviews
- TGTimothy G.Verified BuyerReviewingEaton / Cutler-Hammer GHB3020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Used model
Breaker ohm tested out fine and currently working on load test with a longer term battery charger. So far so good. Packaged very well no visible damages during shipping. Even received a follow up call from customer that I missed.
- CKChristopher K.Verified BuyerReviewingEaton / Cutler-Hammer GHB3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/16/26Great and easy support
Easy ordering process, and always helpful over support
- DMDustin M.Verified BuyerReviewingEaton / Cutler-Hammer GHB3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/31/26Great Price and Worked as Expected
Bought the renewed breaker and all works as expected and saved us money. Great price and availability. Thank you.
- MWMARK W.Verified BuyerReviewingEaton / Cutler-Hammer GHB1020 - 20A 1 Pole Molded Case Circuit BreakerRated 3 out of 5 stars7/21/26Good Product, but Disappointed With the Service
Good product, but I was disappointed with the service. I accidentally placed two separate orders and ended up paying freight on both. I had requested that they combine the orders, and had that been done with the freight waived, it would have saved me money.
Other than that, everything was good. I’m just disappointed that no one communicated this to me.
- AWAnthony W.Verified BuyerReviewingEaton / Cutler-Hammer GHB3080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/7/26Breaker
Item came quick and as described. Simple and easy process!