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Eaton Heavy Duty Safety Switch Non-Fused Single-Throw 400A Three-Pole NEMA 3R Painted Galvanized Steel
Professional Heavy Duty Electrical Disconnect Switch
The Eaton Heavy Duty Safety Switch delivers exceptional electrical power management and control performance for commercial and industrial electrical isolation applications. This 400A three-pole non-fused safety switch provides reliable electrical disconnect 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
- 400A Current Rating - High-capacity electrical disconnect for demanding commercial and industrial power distribution systems
- Three-Pole Configuration - Complete three-phase electrical isolation with reliable switching performance for motor control and power distribution
- 600V Voltage Rating - Professional voltage capacity suitable for commercial and industrial electrical systems up to 600 volts
- Non-Fused Design - Single-throw disconnect switch providing reliable electrical isolation without integrated overcurrent protection
Weather Protection & Durability
- NEMA 3R Enclosure Rating - Weather-resistant protection against rain, sleet, and ice formation for outdoor electrical installations
- Painted Galvanized Steel Construction - Corrosion-resistant enclosure material providing long-term durability in harsh environmental conditions
- Heavy Duty Design - Robust construction engineered for reliable performance in demanding commercial and industrial electrical applications
Professional Installation & Safety
- UL Listed Certification - Meets rigorous electrical safety standards for professional installation in commercial and industrial facilities
- Service Entrance Suitable - Approved for service entrance applications when equipped with appropriate neutral or ground lug kit
- Three-Wire Configuration - Standard wiring arrangement for three-phase electrical systems without neutral conductor
Technical Specifications
Current Rating: 400A, Voltage Rating: 600V, Number of Poles: Three-pole, Enclosure: NEMA 3R, Enclosure Material: Painted galvanized steel, Configuration: Single-throw non-fused, Wire Configuration: Three-wire, Horsepower Rating: 125HP at 240V AC 3-Phase, 250HP at 480V AC 3-Phase, 350HP at 600V AC 3-Phase, 50HP at 250V DC, Dimensions: 45.19" H x 23" W x 12.63" D, Weight: 110 lbs, Certifications: UL Listed, Suitable for service entrance use with neutral or ground lug kit installed
Installation & Usage
- Verify electrical system is de-energized and follow proper lockout/tagout procedures before installation
- Mount safety switch securely to appropriate structural support using proper mounting hardware
- Connect incoming power conductors to line terminals following NEC requirements and local electrical codes
- Connect load conductors to load terminals ensuring proper torque specifications are met
- Install appropriate neutral or ground lug kit if required for service entrance applications
- Verify all connections are secure and properly torqued before energizing the electrical system
- Test switch operation to ensure proper electrical isolation and switching performance
Professional Applications
Ideal for:
- Commercial Electrical Systems - Main disconnect switches for office buildings, retail facilities, and commercial power distribution
- Industrial Power Distribution - Heavy duty disconnect switches for manufacturing facilities, processing plants, and industrial equipment isolation
- Motor Control Centers - Electrical isolation for large motor control applications and industrial machinery disconnect requirements
- Service Entrance Applications - Main electrical service disconnect for commercial and industrial facility electrical systems
- Outdoor Electrical Installations - Weather-resistant disconnect switches for exterior electrical equipment and power distribution systems
- Electrical Safety Systems - Reliable electrical isolation for maintenance, service, and emergency disconnect applications
- Power Distribution Panels - Main disconnect protection for electrical distribution equipment and switchgear applications
- Three-Phase Power Systems - Electrical disconnect for balanced three-phase loads and motor control applications
Heavy Duty Construction Advantage
Eaton's heavy duty safety switch design provides superior electrical performance and durability for demanding commercial and industrial applications. The painted galvanized steel enclosure with NEMA 3R rating ensures reliable protection against environmental conditions while maintaining electrical safety standards. The robust three-pole configuration delivers dependable electrical isolation for high-current applications up to 400 amperes.
Why Choose Eaton Quality?
With over a century of electrical power management innovation, Eaton delivers the quality, reliability, and safety that electrical professionals demand. Our UL Listed safety switches meet the highest electrical safety standards and provide the dependable performance that electricians, electrical contractors, and facility managers trust for critical electrical isolation applications worldwide.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 400A
- Catalog Notes:
- Suitable for service entrance use with a neutral or ground lug kit installed
- Certifications:
- UL Listed
- Enclosure:
- NEMA 3R
- Enclosure Material:
- Painted galvanized steel
- Fuse Configuration:
- Non-fusible
- Hp Rating Max:
- 125 at 240 Vac TD 3 Ph, 250 at 480 Vac TD 3 Ph, 350 at 600 Vac TD 3 Ph, 50 at 250 Vdc
- Number Of Poles:
- Three-pole
- Number Of Wires:
- 3
- Product Category:
- Heavy Duty, Non-Fusible
- Product Height:
- 45.19 in
- Product Length Depth:
- 12.63 in
- Product Type:
- Safety Switch
- Product Weight:
- 110 lb
- Product Width:
- 23 in
- Voltage Rating:
- 600 V
- Product Group:
- Electrical