Overview
The GE EP102ULC25 is a 2-pole supplementary protector designed to provide reliable overload and short-circuit protection in industrial control circuits. This IEC-standard device is rated for 25A at 277/480V AC and features a C-curve characteristic that delivers predictable thermal-magnetic trip performance. Suitable for branch circuit protection in machinery, process control systems, and distribution panels where secondary protection is required.
Key Features
- 2-pole configuration for dual-phase or line-to-line circuit protection
- C-curve trip characteristic for smooth inrush current tolerance
- Thermal-magnetic trip mechanism for precise overload detection
- DIN rail mounting for easy installation in standard control enclosures
- Screw clamp terminal connections rated up to 8 AWG wire
- Compact footprint to maximize panel space efficiency
Technical Specifications
- Manufacturer: General Electric
- Part Number: EP102ULC25
- Poles: 2
- Current Rating: 25A
- Trip Curve: C-Curve
- AC Voltage Rating: 277/480V
- DC Voltage Rating: 110VDC (typical for EP100 series)
- Trip Type: Thermal-Magnetic
- Mounting: DIN Rail
- Terminal Connection: Screw Clamp
- Wire Size Range: 14 AWG to 8 AWG
- Short Circuit Rating: 6 kA AIR (typical)
- Standards: UL 1077, CSA C22.2 No. 235, VDE, CE
Typical Applications
The GE EP102ULC25 is ideal for:
- Motor control centers and variable frequency drive circuits
- Control panel branch circuit protection
- Instrumentation and sensor circuit protection
- Secondary protection for industrial machinery
- HVAC and heating system control circuits
- Distributed control systems in manufacturing facilities
Compatibility & Replacements
Compatible With
- Standard industrial 277/480V three-phase distribution systems
- DIN-rail mounted control enclosures and switchboards
- Branch circuits protected by main feeder breakers (supplemental protection only)
- Circuits not exceeding 6 kA available fault current
Replaces / Drop-In Replacement For
The GE EP102ULC25 is the successor or equivalent to earlier GE supplementary protector designs. For specific interchangeability with other manufacturers’ units or older GE models, verify compatibility with your system integrator or GE technical support before ordering.
Works With
- Standard 277/480V three-phase industrial control systems
- DIN rail-mounted modular control architectures
- Integrated protection systems in panelboards and motor control centers
- IEC 60898 compliant circuit architectures
