Eaton / Cutler-Hammer GHQ1030 Molded Case Circuit Breaker
- 30A
- 1 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer GHQ1030 - 30A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial power distribution, the Eaton GHQ1030 1-pole, 30A molded case circuit breaker belongs to the Series C family. It delivers consistent performance in demanding environments. This bolt-on breaker integrates with Eaton Pow-R-Line C, Pow-R-Line 2X, and older Westinghouse panelboards. It also functions as a reliable substitute for GHB1030 models. Providing 14kAIC interrupting capacity at 277VAC, it features non-interchangeable fixed thermal and magnetic trip units.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHQ |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC |
| Frame Type | GHQ |
|---|---|
| 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, HID Rated, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
8 answersWhat panelboards are compatible with the Eaton GHQ1030?
This breaker is designed to bolt into Eaton Pow-R-Line C and Pow-R-Line 2X panelboards, as well as legacy Westinghouse panelboards.
Can the GHQ1030 be used on a 480V system?
It is rated for 277/480VAC, meaning it is suitable for 277V single-phase branch circuits derived from a solidly grounded 480Y/277V three-phase system. It cannot be used on ungrounded 480V delta systems.
Can the GHQ1030 be used to replace a GHB1030 breaker?
Yes, the GHQ1030 serves as a direct substitute for GHB1030 models in compatible Eaton and Westinghouse distribution panels.
Does this breaker replace older Westinghouse GHQ1030 models?
Yes. Because Eaton acquired the Westinghouse distribution equipment division, this Eaton-branded breaker is the direct replacement for legacy Westinghouse GHQ1030 breakers.
What wire sizes do the lugs on the GHQ1030 accept?
The standard lugs on this breaker accommodate wire gauges from 14 AWG up to 1/0 AWG.
How does the GHQ1030 mount into the panel?
It utilizes a bolt-on connection, securing directly to the panelboard bus to provide a stable, vibration-resistant contact.
What type of trip unit is installed in the GHQ1030?
It features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) protection functions.
What breaker frame family does the GHQ1030 belong to?
It is part of the Eaton Series C family and utilizes the G-frame footprint, making it compatible with standard G-frame panelboard spaces.
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