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Eaton / Cutler-Hammer GHB2030 Molded Case Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB2030
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB2030
Quantity
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Eaton / Cutler-Hammer GHB2030 - 30A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer GHB2030 - 30A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GHB2030 |
| Series | GHB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Quantity
Eaton / Cutler-Hammer GHB2030 - 30A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GHB2030-R |
| Series | GHB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
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Description
Built for commercial distribution, the GHB2030 is a 30A, 2-pole molded case circuit breaker from Eaton. It features a G-frame design with fixed thermal-magnetic trip units, offering reliable protection. The breaker is HACR rated and supports reverse feed applications. This bolt-on MCCB is compatible with Eaton Series C panelboards and motor control centers. It includes lugs that accept 10-1/0 AWG wire. Delivering 14 kAIC at 480Y/277V, it provides excellent short-circuit interruption.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GHB2030 |
| Series | GHB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed |
Product FAQs
7 answersWhat panelboards are compatible with the GHB2030 breaker?
This bolt-on breaker installs in Eaton and Cutler-Hammer Series C panelboards, specifically 480Y/277V Pow-R-Line models such as PRL2a and PRL3a, along with compatible switchboards and motor control centers.
Can the GHB2030 be installed in 480V Delta systems?
No. The 480Y/277VAC rating limits this breaker to solidly grounded wye systems with a maximum line-to-neutral voltage of 277V. It is not rated for 480V ungrounded or corner-grounded Delta applications.
Is the Eaton GHB2030 a direct replacement for legacy Westinghouse breakers?
Yes. Current Eaton Series C GHB breakers are the direct replacements for obsolete Westinghouse and Cutler-Hammer GHB frame circuit breakers.
Is this breaker HACR rated for HVAC equipment?
Yes, the GHB2030 carries a HACR rating, permitting its use as branch circuit protection for heating, air conditioning, and refrigeration equipment.
Can the GHB2030 be used in reverse feed installations?
Yes. Eaton Series C G-frame circuit breakers do not have line and load restrictions, making them suitable for reverse feed applications.
Does the GHB2030 have adjustable trip settings?
No. This unit features fixed thermal and fixed magnetic trip functions and cannot be adjusted in the field.
What wire sizes do the factory lugs support?
The standard pressure terminals accept 10 AWG to 1/0 AWG copper or aluminum conductors.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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!