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Eaton Heavy Duty Safety Switch Single-Throw Fused 400A Three-Pole 600V NEMA 1 Class H
Professional Heavy Duty Electrical Disconnect Switch
The Eaton Heavy Duty Safety Switch delivers exceptional electrical power management and control performance for industrial and commercial electrical applications. This 400A three-pole single-throw fused safety switch provides reliable electrical isolation and protection designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.
Professional Features & Benefits
Heavy Duty Electrical Performance
- 400 Ampere Rating - High-capacity electrical switching for demanding industrial and commercial power distribution applications
- 600 Volt Rating - Professional voltage capacity for three-phase electrical systems and motor control applications
- Three-Pole Configuration - Complete three-phase electrical isolation with four-wire capability for neutral switching
- Class H Fuse Provision - Compatible with standard Class H fuses for reliable overcurrent protection and electrical safety
Professional Construction & Protection
- NEMA 1 Enclosure - Indoor general purpose enclosure protection for commercial and industrial electrical installations
- Painted Steel Construction - Durable enclosure material providing long-lasting protection and professional appearance
- Single-Throw Operation - Reliable on-off switching operation for positive electrical isolation and safety
Installation & Safety Features
- Fusible with Neutral Design - Complete electrical isolation including neutral conductor for enhanced safety
- UL Listed Certification - Meets rigorous electrical safety standards for professional electrical installations
- Heavy Duty Rating - Engineered for demanding electrical applications with superior switching performance
Technical Specifications
Amperage Rating: 400A, Voltage Rating: 600V, Number of Poles: Three-pole, Number of Wires: Four-wire, Enclosure: NEMA 1, Enclosure Material: Painted steel, Fuse Configuration: Fusible with neutral, Fuse Class: Class H, Maximum Horsepower: 250 HP at 480V, 350 HP at 600V (3-phase), Wire Size: (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Al, Dimensions: 24.38" W x 45.5" D x 10.25" H, Weight: 123 lbs, Certifications: UL Listed
Installation & Usage
- Verify electrical system is de-energized and follow proper lockout/tagout procedures before installation
- Mount safety switch in appropriate location following NEC requirements and manufacturer specifications
- Connect incoming power conductors to line terminals using proper torque specifications
- Install appropriate Class H fuses matching the load requirements and electrical protection needs
- Connect load conductors to load terminals ensuring proper phase sequence and neutral connection
- Verify all connections are secure and perform electrical testing before energizing the system
Professional Applications
Ideal for:
- Industrial Motor Control - Heavy duty motor disconnect applications requiring 400A capacity and reliable switching
- Commercial Power Distribution - Main electrical disconnects for commercial buildings and facility power systems
- Manufacturing Equipment - Electrical isolation for industrial machinery and production equipment
- HVAC Systems - Large commercial air conditioning and heating system electrical disconnects
- Pump Stations - Water treatment and industrial pump motor disconnect applications
- Electrical Panels - Main disconnect switches for electrical distribution panels and switchgear
- Service Entrance - Commercial and industrial service entrance disconnect applications
- Emergency Systems - Critical electrical isolation for emergency power and backup systems
Heavy Duty Design Advantage
Eaton's heavy duty safety switch design provides superior electrical performance with robust construction engineered for demanding industrial applications. The single-throw fused configuration with neutral switching ensures complete electrical isolation while Class H fuse compatibility offers flexible overcurrent protection options for various load types and electrical system requirements.
Why Choose Eaton Quality?
With over a century of electrical power management innovation, Eaton delivers the reliability and performance that electrical professionals demand. Our heavy duty safety switches feature UL Listed certification, superior construction quality, and proven electrical performance trusted by electricians, electrical contractors, and facility professionals worldwide for critical power distribution and electrical safety applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 400A
- Certifications:
- UL Listed
- Enclosure:
- NEMA 1
- Enclosure Material:
- Painted steel
- Fuse Class Provision:
- Class H
- Fuse Configuration:
- Fusible with neutral
- Hp Rating Max:
- 250, 350 hp (3PH @480/600 V)
- Number Of Poles:
- Three-pole
- Number Of Wires:
- 4
- Product Category:
- Heavy Duty, Fusible with neutral
- Product Height:
- 10.25 in
- Product Length Depth:
- 45.5 in
- Product Type:
- Safety Switch
- Product Weight:
- 123 lb
- Product Width:
- 24.38 in
- Voltage Rating:
- 600 V
- Product Group:
- Electrical
- Department:
- Electrical