Product Description
The Heinemann GH3-G3-U is a 3-pole hydraulic-magnetic circuit breaker from Eaton's GH Series, designed to provide reliable overload and short-circuit protection in a compact, economical form factor. It features a Series Trip (G3) internal circuit configuration and carries UL and CSA listings for 480 VAC applications. The GH Series uses hydraulic-magnetic technology to accurately trip across a broad temperature range without nuisance tripping, making it well-suited for industrial equipment, motor protection, HVAC, and power distribution panels.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Heinemann (Eaton) |
| Model / Part Number | GH3-G3-U |
| Series | GH Series |
| Number of Poles | 3 |
| Voltage Rating (AC) | 480 VAC |
| Frequency | 50/60 Hz |
| Current Rating | See label (base catalog number; amperage specified in full suffix) |
| Current Range Available | 0.5 A to 100 A AC |
| Interrupting Capacity | 14,000 A at 480 VAC, 50/60 Hz, 3-phase (25–30% PF) |
| Internal Circuit Type | G3 – Series Trip (contacts and coil in series) |
| Trip Technology | Hydraulic-Magnetic |
| Agency Listing | UL Listed, CSA Certified (U = UL/CSA) |
| Terminal Type | #6-32 Screw Terminals |
| Handle Positions | ON / OFF (trip-free; no ambiguous reset position) |
| Trip-Free Construction | Yes – cannot hold closed against fault |
| Approximate Weight | 3.3 lb (GH3 frame) |
| Manufacturer | Heinemann Electric Co. (Eaton Corporation) |
| Product Family | Hydraulic-Magnetic Circuit Breakers |
We warranty all items for 30 days from date of purchase.
Other Details
We warranty all items for 30 days from date of purchase. If you experience any issues with your item within this period, please contact us and we will work with you to resolve the problem. This warranty covers defects in functionality but does not cover damage caused by misuse, improper installation, or normal wear and tear.Product Videos
Custom Field
GTIN 679523686161
Mounting Style Panel Mount
Current Rating 0.5 A - 100 A
Material Thermoplastic Housing, Silver Alloy Contacts
Full Load Amps See label
Manufacturer Heineman
Part Number GH3-G3-U
Shelf J-2
Model GH3-G3-U
MPN GH3-G3-U
Voltage 480 VAC
Type Circuit Breaker
