Eaton Safety Switch General Duty Cartridge Fuse 400A Three-Pole NEMA 3R 240V Class H Fusible with Neutral

Eaton General Duty Cartridge Fuse Safety Switch

Professional Heavy-Duty Electrical Disconnect Switch

The Eaton General Duty Cartridge Fuse Safety Switch delivers exceptional electrical power management and control performance for commercial and industrial electrical isolation applications. This 400A 240V three-pole safety switch provides reliable electrical protection and power disconnection 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 commercial and industrial power distribution systems
• 240V Voltage Rating - Reliable voltage handling for standard commercial electrical applications
• Three-Pole Configuration - Complete three-phase power isolation and control for motor circuits and equipment
• Class H Fuse Compatibility - Standard cartridge fuse protection with proven overcurrent protection performance

Weather-Resistant Protection

• NEMA 3R Enclosure Rating - Weather-resistant protection for outdoor installations and harsh environments
• Painted Galvanized Steel Construction - Durable corrosion-resistant enclosure material for long-term reliability
• Fusible with Neutral Design - Complete four-wire electrical isolation including neutral conductor protection

Professional Installation Features

• General Duty Classification - Versatile safety switch design suitable for standard commercial electrical applications
• UL Listed Certification - Meets rigorous electrical safety standards for professional installation confidence

Technical Specifications

Amperage Rating: 400A, Voltage Rating: 240V, Number of Poles: Three-pole, Number of Wires: Four-wire, Enclosure: NEMA 3R, Enclosure Material: Painted galvanized steel, Fuse Configuration: Fusible with neutral, Fuse Class: Class H fuses, Product Category: General duty safety switch, Certifications: UL Listed, Dimensions: 45.19" H x 23" W x 12.63" D, Weight: 115 lb

Installation & Usage

1. Verify electrical system compatibility with 400A 240V three-pole requirements and NEMA 3R environmental conditions
2. Mount safety switch securely using appropriate hardware for 115 lb unit weight and outdoor installation requirements
3. Connect incoming and outgoing conductors to appropriate terminals following four-wire configuration with neutral
4. Install Class H cartridge fuses according to manufacturer specifications and electrical load requirements
5. Test switch operation and verify proper electrical isolation before energizing connected equipment
6. Perform regular maintenance inspections of enclosure integrity and fuse condition per electrical safety standards

Professional Applications

Ideal for:

• Commercial Power Distribution - Main electrical disconnects for commercial buildings, retail facilities, and office complexes
• Industrial Motor Control - Safety disconnects for large motor applications, conveyor systems, and industrial equipment
• HVAC System Protection - Electrical isolation for commercial air conditioning units, rooftop equipment, and ventilation systems
• Outdoor Electrical Equipment - Weather-resistant disconnects for exterior electrical installations and equipment
• Maintenance Disconnection - Safe electrical isolation for equipment servicing and maintenance procedures
• Emergency Shutdown Systems - Critical electrical disconnection for safety and emergency response applications
• Electrical Panel Protection - Upstream protection and isolation for electrical distribution panels and switchgear
• Code Compliance Applications - NEC-compliant electrical disconnects for commercial and industrial electrical systems

General Duty Design Advantage

Eaton's general duty safety switch design provides versatile electrical protection suitable for standard commercial applications while maintaining the robust construction and reliable performance required for professional electrical installations. The Class H fuse compatibility ensures proven overcurrent protection with readily available replacement fuses.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the quality construction, UL Listed safety compliance, and dependable performance that electricians, electrical contractors, and facility professionals trust worldwide. Our commitment to electrical safety standards and intelligent power management solutions ensures reliable protection for critical electrical systems in demanding commercial and industrial environments.