Eaton / Cutler-HammerGHB3100S1
Eaton / Cutler-Hammer GHB3100S2 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB3100S2
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB3100S2
Quantity
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Eaton / Cutler-Hammer GHB3100S2 - 100A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial power systems, the Eaton GHB3100S2 is a 100A, 3-pole MCCB. It features a factory-installed 240VAC shunt trip, allowing for remote tripping when integrated with safety circuits. This bolt-on breaker mounts into Eaton Pow-R-Line panelboards and Series C enclosures. It utilizes fixed thermal-magnetic trip technology for reliable long-time and instantaneous protection. Rated at 65 kAIC at 240VAC, it is HACR rated, reverse feed capable, and current limiting.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHB |
| Amperage | 100A |
| 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, Eaton 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Shunt Trip (240VAC) |
| 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, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhat does the S2 suffix mean in the GHB3100S2 catalog number?
The S2 suffix indicates that this circuit breaker includes a factory-installed shunt trip mechanism rated for 110V to 240V AC or DC. This allows the breaker to be tripped remotely for emergency shutdowns or safety system integration.
Can the GHB3100S2 be installed on a 480V ungrounded delta system?
No. The 480Y/277VAC slash rating means this breaker is only approved for solidly grounded wye systems where the line-to-neutral voltage does not exceed 277V. It cannot be used on 480V ungrounded or corner-grounded delta systems.
Is the Eaton GHB3100S2 suitable for reverse feed applications?
Yes, this thermal-magnetic circuit breaker is suitable for reverse feed applications. It is also HACR rated for use with heating, air conditioning, and refrigeration equipment.
How is the factory-installed shunt trip wired on this breaker?
The internal shunt trip mechanism includes pigtail leads that exit the breaker housing. These leads must be connected to an external 110V to 240V AC or DC control power source to enable remote tripping.
Which panelboards accept the GHB3100S2 circuit breaker?
This G-frame breaker is designed for use in Eaton Pow-R-Line panelboards, Series C panelboards, switchboards, and motor control centers that accept bolt-on GHB breakers. It requires three pole spaces for installation.
What are the wire size and torque requirements for the GHB3100S2?
The factory-installed load lugs accept 10 AWG to 1/0 AWG copper or aluminum wire. Always refer to the label on the side of the breaker for the exact torque specifications required during installation.
Can the trip settings on the GHB3100S2 be adjusted in the field?
No. This breaker features a fixed thermal-magnetic trip unit with long-time and instantaneous (LI) functions. The thermal and magnetic trip points are factory set and cannot be modified.
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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!