Overview
The Eaton GD3100K is a 3-pole molded case circuit breaker designed for industrial and commercial electrical distribution systems. This breaker carries a current rating of 100 Amps and voltage rating of 480VAC, 125/250VDC. It has an interrupting rating of 65kAIC at 240VAC and 22kAIC at 480VAC, with feed-thru connection type and long time and instantaneous trip functions. The GD3100K is part of Eaton’s proven Series C line of molded case circuit breakers.
Key Features
- 3-pole configuration for 3-phase power distribution
- 100-ampere rated current at 40°C ambient
- Thermal-magnetic trip mechanism for reliable protection
- Long-time and instantaneous (LI) overcurrent protection
- Feed-thru connection design for panel mounting
- Compact G-frame molded case construction
Technical Specifications
| Poles | 3 |
| Amperage Rating | 100 A @ 40°C |
| Voltage Rating | 480VAC @ 50/60 Hz; 125/250 VDC |
| Interrupting Rating (at 480VAC) | 22 kAIC |
| Interrupting Rating (at 240VAC) | 65 kAIC |
| Interrupting Rating (at 250VDC) | 10 kAIC |
| Trip Type | Thermal-Magnetic (Long-Time, Instantaneous) |
| Connection Type | Feed-Thru |
| Frame Size | G-Frame |
| Certifications | UL, CSA, NEMA |
| Manufacturer | Eaton (Cutler-Hammer Division) |
Typical Applications
The GD3100K molded case breaker is suitable for:
- Industrial motor control and power distribution
- Commercial electrical panel applications
- Protection of machinery and equipment circuits
- DC and AC power systems (480VAC or 125/250VDC)
- Original equipment manufacturer (OEM) installations
Compatibility & Replacements
Compatible With
- Eaton Series C molded case circuit breaker panels and enclosures
- Eaton motor control centers (MCCs) with G-frame mounting
- Industrial power distribution systems rated 480VAC, 3-phase
- Systems requiring 100-ampere 3-pole overcurrent protection
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The GD3100K is part of Eaton’s G-frame series and may replace other G-frame breakers of the same amperage and voltage rating when used as a direct substitution in compatible applications.
Works With
- Eaton Series C molded case breaker family
- Standard industrial electrical distribution systems
- Power distribution equipment and switchgear
- Facilities using 480VAC 3-phase power
- Legacy and modern industrial control systems
