Overview
The Eaton FDC3050 is a Series C F-frame molded case circuit breaker designed for industrial and commercial electrical distribution systems. This 3-pole unit features a continuous current rating of 50A and voltage ratings of 600VAC and 250VDC. With fixed thermal and fixed magnetic trip elements providing Long-Time and Instantaneous (LI) protection, the FDC3050 delivers dependable overload and short-circuit protection suitable for panelboards, switchboards, and distribution equipment.
Key Features
- 3-pole configuration with 50A continuous current rating
- 600VAC and 250VDC dual voltage rating
- Fixed thermal-magnetic trip mechanism with LI (Long-Time/Instantaneous) functions
- 100kA interrupting rating at 480VAC; 200kA at 240VAC; 35kA at 600VAC
- Molded case construction with non-interchangeable trip unit
- Standard pressure line and load side lug terminals for feed-thru or bolt-on mounting
- UL and CSA approved; IEC rated for global applications
Technical Specifications
See specification table below for full electrical and physical details.
Typical Applications
- Commercial and industrial panelboards and switchboards
- Motor control circuits requiring 50A protection
- Branch circuit distribution in facilities operating at 600V or below
- Equipment serving mixed 120/208V three-phase or 277/480V systems
Compatibility & Replacements
Compatible With
- Eaton Series C FDC F-frame electrical distribution systems
- Standard industrial panelboards rated for 600VAC operation
- Commercial and industrial switchboards with FDC frame mounting
- Equipment requiring UL 489 or IEC 60947-2 molded case breakers
Replaces / Drop-In Replacement For
- Cutler-Hammer FDC3050 (identical OEM part)
- Westinghouse FDC3050 (cross-manufacturer equivalent)
- Legacy Eaton Series C 50A 3-pole 600V molded case breakers with FDC frame and fixed trip
Works With
- Standard EIA/NEMA panelboard mounting configurations
- Thermal-magnetic trip coordination with downstream protective devices
- Industrial control systems and equipment requiring UL 489 listed overcurrent protection
- Both feed-thru and bolt-on terminal mounting styles
