Westinghouse KD2400F Overview
The Westinghouse KD2400F is a Series C molded case circuit breaker frame designed for medium-voltage industrial power distribution systems. This K-frame assembly is rated for 400 amperes at 600 volts AC and provides robust protection against short circuits and overloads in 2-pole applications. As a frame-only unit, the KD2400F accepts standard interchangeable trip units, allowing engineers to customize trip characteristics for specific load requirements.
Key Features
- K-Frame Design: Compact modular frame rated 70–400 amperes for space-efficient panel mounting
- Dual Voltage Capability: Rated 600 Vac and 250 Vdc, supporting AC and DC circuit protection applications
- Thermal-Magnetic Trip: Fixed thermal and fixed magnetic trip mechanism provides reliable protection against overloads and fault currents
- Frame-Only Assembly: Trip unit sold separately; allows customization with KT2400 series thermal-magnetic units for application-specific settings
- Industrial Reliability: Built to withstand demanding industrial environments and provide long-term circuit protection
Technical Specifications
- Part Number: KD2400F
- Rated Current: 400 amperes (maximum)
- AC Voltage Rating: 600 Vac
- DC Voltage Rating: 250 Vdc
- Interrupting Capacity (IC): 65 kAIC @ 240 Vac; 35 kAIC @ 480 Vac
- Poles: 2-pole
- Frame Type: K-frame (Series C)
- Trip Unit Type: Fixed thermal-magnetic (frame only; trip unit not included)
- Configuration: Molded case, frame-only (requires separate trip unit assembly)
- Frequency: 50/60 Hz
- Manufacturer: Westinghouse (now Eaton)
Typical Applications
- Industrial feeder and branch circuit protection in manufacturing plants
- Motor control centers (MCC) and power distribution panels
- Commercial building electrical systems requiring medium-amperage protection
- Equipment load centers and distribution boards in industrial facilities
- Retrofit and upgrade applications in existing electrical systems
Compatibility & Replacements
Compatible With
- KT2400T thermal-magnetic trip units (standard interchangeable unit)
- Eaton/Cutler-Hammer KD-frame electrical distribution panels
- Industrial control systems operating at 240 V, 480 V, or 600 V
- Motor control applications up to 400 amperes
- Power distribution systems requiring 50/60 Hz operation
Replaces / Drop-In Replacement For
- Legacy Westinghouse KD2400F breaker frames (direct replacement)
- Equivalent Eaton/Cutler-Hammer K-frame 400A units of similar vintage
- Other Series C 2-pole 400A molded case frames with matching terminal configuration
Works With
- Interchangeable thermal-magnetic trip blocks (KT2400 family)
- Eaton MCC (Motor Control Center) lineups
- Standard industrial distribution cabinet assemblies
- Control systems operating at 50 Hz and 60 Hz frequencies
- AC and DC power distribution systems (600V AC / 250V DC)
