Eaton / Cutler-Hammer GHC3020S1 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer GHC3020S1 - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial use, the Eaton GHC3020S1 is a 3-pole, 20A Series C G-Frame MCCB. It delivers reliable thermal-magnetic protection for commercial electrical systems. This unit-mount breaker installs into Eaton enclosures, OEM control panels, or DIN rails via an adapter. It accepts 14-1/0 AWG wire through standard line and load lugs. Rated at 65 kAIC at 240V, it features a factory-installed shunt trip (S1 suffix) for remote operation, plus HACR and reverse feed capabilities.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GHC3020S1 |
| Series | GHC |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Enclosures, OEM Panels, DIN Rail (with adapter) |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersWhat does the "S1" suffix indicate on the GHC3020S1 catalog number?
The "S1" suffix means this breaker comes with a factory-installed shunt trip, typically rated for 120V AC on the left pole, allowing for remote tripping of the circuit.
Can I field-install a shunt trip into a standard GHC3020 instead of ordering the GHC3020S1?
No. Eaton G-Frame circuit breakers are factory sealed. UL requires internal accessories like shunt trips to be factory-installed, so the GHC3020S1 must be ordered if this feature is needed.
What wire sizes are accepted by the terminals on this G-Frame breaker?
The factory-installed lugs on the GHC3020S1 accept copper or aluminum conductors ranging from 14 AWG to 1/0 AWG.
How is the GHC3020S1 mounted inside an enclosure?
This is a unit-mount, feed-thru breaker. It secures directly to the backpan of Eaton Series C enclosures or OEM panels using screws, and connects via cable-in and cable-out wiring rather than plugging onto a busbar.
Is the thermal-magnetic trip unit on this 20A breaker adjustable?
No, the GHC3020S1 features a non-interchangeable trip unit with fixed thermal (long-time) and fixed magnetic (instantaneous) settings.
Does this breaker support direct DIN rail mounting?
The GHC3020S1 can be mounted on a standard DIN rail, but it requires a separate Eaton component adapter to do so.
Is the GHC3020S1 rated for direct current (DC) systems?
Yes, alongside its 480V AC rating, this breaker is rated for 125/250V DC applications with a 14kA interrupting capacity.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- WSWilliam S.ReviewingEaton / Cutler-Hammer GHC2030 - 30A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/13/22Good Experience
Everything came in as described and on time