Overview
The Eaton Cutler-Hammer EHD3100 is a heavy-duty molded case circuit breaker (MCCB) designed for three-phase industrial power distribution. With a 100-ampere rating and EHD frame configuration, this breaker provides thermal-magnetic trip protection for equipment and feeder circuits in commercial and industrial settings. The Series C design integrates seamlessly with motor control centers, switchboards, and standard industrial enclosures.
Key Features
- 100 ampere continuous current rating at 40°C ambient
- 3-pole configuration for three-phase protection
- Thermal-magnetic trip mechanism for selective fault detection
- 14 kiloampere interrupting rating at 480V (Series C rating)
- Line and load side lug terminals for secure wire connections
- EHD frame size compatible with Series C motor control centers
- Bolt-on mounting for standard panel installations
Technical Specifications
Voltage Rating: 480 VAC (50/60 Hz) | Frame Type: EHD | Poles: 3 | Current Rating: 100 Amps | Trip Type: Thermal-Magnetic | Interrupting Rating: 14 kAIC @ 480V | Mounting Style: Bolt-On | Dimensions: 4.125″ W × 3.375″ D × 6″ H | Terminal Type: Line and Load Lugs | Standards: UL Listed, IEC 157-1 | Series: C
Typical Applications
- Motor control center feeder protection
- Industrial machinery and equipment circuits
- Three-phase power distribution panels
- Commercial facility electrical protection
- Factory automation and production line circuits
- HVAC and large load protection
Compatibility & Replacements
Compatible With
- Eaton Series C motor control centers
- Industrial power distribution enclosures and switchboards
- Standard three-phase 480V systems
- EHD frame mounting kits and hardware
- ED, FDB, FD, HFD, and FDC frame devices (same physical size)
Replaces / Drop-In Replacement For
- FD3100 (in compatible system configurations)
- Earlier EHD3100 versions
Works With
- Eaton Series C medium-voltage equipment
- 480V three-phase power systems
- Standard industrial thermal-magnetic protection schemes
- Shunt trips and auxiliary switches (field-installable options)
