Eaton / Cutler-Hammer GHQ1020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer GHQ1020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Eaton / Cutler-Hammer GHQ1020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHQ |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC |
| Frame Type | G |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Eaton Pow-R-Line 2X Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14-1/0 AWG |
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, HID Rated, Non-Interchangeable Trip, Reverse Feed |
Quantity
Eaton / Cutler-Hammer GHQ1020 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHQ |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC |
| Frame Type | G |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Eaton Pow-R-Line 2X Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14-1/0 AWG |
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, HID Rated, Non-Interchangeable Trip, Reverse Feed |
Description
Built for industrial and commercial facilities, the Eaton GHQ1020 is a 20A, 1-pole molded case circuit breaker. Operating at 277VAC, this Series C device delivers dependable thermal-magnetic branch circuit protection. The unit mounts into Eaton Pow-R-Line C, Pow-R-Line 2X, and older Westinghouse panelboards. When sourcing replacements, note that this model is superseded by the GHB1020. It features a 14kAIC interrupt rating, non-interchangeable trip, and carries HACR, SWD, and HID ratings.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHQ |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC |
| Frame Type | G |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Eaton Pow-R-Line 2X Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14-1/0 AWG |
| 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated, HID Rated, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
6 answersWhich panelboards are compatible with the GHQ1020 circuit breaker?
This bolt-on G-frame circuit breaker is designed for use in Eaton Pow-R-Line C and Pow-R-Line 2X panelboards, as well as legacy Westinghouse panelboards.
What wire sizes are supported by the terminal lugs on the GHQ1020?
The breaker's built-in lugs accept wire gauges ranging from 14 AWG to 1/0 AWG for standard electrical installations.
In what type of electrical system is the GHQ1020 typically applied?
With a 277VAC rating and 14kAIC interrupting capacity, this single-pole breaker is commonly used for commercial lighting circuits and other single-phase loads in 480Y/277V distribution systems.
Can I use the Eaton GHQ1020 in place of older Cutler-Hammer or Westinghouse models?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. The current Eaton GHQ1020 serves as a direct, form-fit replacement for older breakers bearing the exact same catalog number.
What kind of trip mechanism does the Eaton GHQ1020 feature?
It is equipped with a fixed thermal-magnetic trip unit that provides both long-time and instantaneous (LI) protection against overloads and short circuits. Neither the thermal nor magnetic settings can be field-adjusted.
Can I install this breaker in a standard residential load center?
No. The GHQ1020 utilizes a bolt-on mounting style specific to industrial and commercial panelboards. It cannot be installed in standard residential plug-on load centers.
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