Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer GHB1100 Molded Case Circuit Breaker
- 100A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB1100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB1100
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer GHB1100 - 100A 1 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
80A 1 Pole Molded Case Circuit Breaker
70A 1 Pole Molded Case Circuit Breaker
60A 1 Pole Molded Case Circuit Breaker
Description
Built for commercial applications, the Eaton GHB1100 is a single-pole molded case circuit breaker from the Series C family. It provides robust overcurrent protection for 277VAC and 125VDC systems. This G-frame breaker installs into Eaton Pow-R-Line C panelboards. The bolt-on mounting style ensures a secure connection, while the included load-side lugs simplify wiring. Rated at 14kAIC at 277VAC, this unit features fixed thermal and magnetic trip units and is reverse feed capable.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHB |
| Amperage | 100A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 14kA @ 277VAC, 14kA @ 125VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Series C Panelboards |
| 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 | Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat panelboards are compatible with the GHB1100 circuit breaker?
The GHB1100 is a bolt-on breaker designed for use in Eaton Pow-R-Line C and Series C panelboards. It is not compatible with standard residential loadcenters like the BR or CH series.
Can the GHB1100 be used in direct current applications?
Yes, this breaker is rated for DC use. It provides an interrupting capacity of 14kAIC at 125VDC, making it suitable for specific control circuit or battery applications.
What wire sizes and materials are accepted by the GHB1100 lugs?
The factory-installed lugs accept 10 AWG to 1/0 AWG wire. They are dual-rated for both copper (Cu) and aluminum (Al) conductors.
Is there a difference between the Cutler-Hammer GHB1100 and the Eaton GHB1100?
No, they are the exact same breaker. Eaton acquired Cutler-Hammer and continues to manufacture the GHB series under the Eaton brand.
What does the LI trip function mean on this breaker?
The LI designation indicates Long-Time and Instantaneous trip functions. This provides standard thermal-magnetic protection against overloads and short circuits with fixed, non-adjustable trip settings.
Is the GHB1100 suitable for reverse feed or back-fed applications?
Yes, standard GHB thermal-magnetic breakers do not have line and load markings. This makes them suitable for reverse feed installations, such as acting as a back-fed main breaker in a compatible panelboard.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
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.
Search
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!