Eaton KW3400F

Description

Technical Specifications

• Maximum Frame Current Rating: 400A
• Voltage Rating: 600V AC, 250V DC
• Number of Poles: 3 poles
• Interrupting Rating: 100 kAIC at 415V AC (when paired with compatible trip unit)
• Frame Series: KWC K-frame, Series C
• Trip Unit: Not included; accepts thermal-magnetic, electronic, or magnetic-only K-frame trip units
• Terminals: Not included; accepts field-installable line and load terminal kits
• Dimensions: 4.1 in (depth) × 5.5 in (width) × 5.5 in (height)
• Weight: 13.7 lb

Functional Features

• Modular design supports field configuration with multiple trip unit types
• High interrupting capacity for heavy-duty industrial fault conditions
• Standard K-frame mounting footprint compatible with existing Series C enclosures
• Robust mechanical construction for long service life in harsh operating environments
• Fully compatible with the complete range of K-frame auxiliary components and accessories

Application Scenarios

• Custom circuit breaker assembly for specialized power system requirements
• Field replacement of damaged circuit breaker frame assemblies
• Power system upgrades requiring higher interrupting capacity ratings
• Industrial facilities with unique protection configuration and customization needs

Material & Construction

• High-strength glass-filled polyester housing for mechanical rigidity and electrical insulation
• Integrated arc chute chambers with deionization plates for arc management
• Precision-machined contact carrier assembly for consistent mechanical operation
• Reinforced mounting points for secure and vibration-resistant panel installation

Operating Principle

• Provides the structural, mechanical, and arc management platform for circuit breaker operation
• Houses the main contact assembly and arc quenching system
• Interfaces with separately specified trip units to provide complete overcurrent protection functionality

Installation Requirements

• Equip with a compatible Eaton K-frame Series C trip unit before energization
• Install appropriate line and load terminal kits matched to application conductor sizes
• Follow official Eaton assembly instructions for proper trip unit installation and calibration
• Verify all mechanical and electrical connections before system commissioning

Certifications & Warranty IEC Rated, UL Recognized component 1-year warranty from installation date or 18 months from shipment date, whichever occurs first