Eaton / Cutler-HammerGHB3100S1
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Eaton / Cutler-Hammer GHB3090S1 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB3090S1
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB3090S1
Quantity
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Eaton / Cutler-Hammer GHB3090S1 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Designed for remote disconnect applications, the Eaton GHB3090S1 is a 3-pole, 90A molded case circuit breaker. It includes a factory-installed 120VAC shunt trip accessory, allowing users to trip the breaker remotely for safety or control. This G-Frame bolt-on MCCB installs into Eaton Pow-R-Line panelboards, switchboards, and motor control centers. It features standard lugs for 10-1/0 AWG wire. Rated 14 kAIC at 480Y/277VAC, it offers reliable current-limiting protection and is HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GHB3090S1 |
| Series | GHB |
| Amperage | 90A |
| 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 Panelboards, Series C 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| 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 |
Product FAQs
6 answersWhat does the "S1" suffix indicate on the GHB3090S1?
The "S1" suffix means this breaker comes equipped with a factory-installed 120VAC (50/60 Hz) shunt trip. This internal accessory allows the breaker to be opened remotely via a control signal for emergency disconnect or automated control applications.
Can I install or replace the shunt trip in the field?
No. Eaton G-Frame circuit breakers, including the GHB3090S1, are factory sealed. UL standards require internal accessories like the shunt trip to be installed at the factory to maintain the breaker's UL listing.
How is the factory-installed shunt trip wired?
The 120VAC shunt trip includes 18 AWG pigtail leads that exit from the rear left side of the breaker housing. When a 120V signal is applied, the coil draws approximately 1.1 amps to trip the breaker mechanism.
Which panelboards accept the GHB3090S1 breaker?
This bolt-on molded case circuit breaker is designed to mount in Eaton Pow-R-Line panelboards, Series C panelboards, switchboards, and compatible motor control centers.
Is this breaker approved for HVAC equipment?
Yes, the GHB3090S1 is HACR rated. It is certified for use as branch circuit protection for heating, air conditioning, and refrigeration equipment.
Can this replace older Westinghouse or Cutler-Hammer GHB breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. A modern Eaton GHB3090S1 is a direct, drop-in replacement for older Cutler-Hammer or 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!