Eaton Crouse-Hinds EIDDF3400 Disconnect Switch - Hazardous Locations

Part Number: EIDDF3400
EIDDF3400
Manufacturer
Eaton Crouse-Hinds
Part number
EIDDF3400
Category

Quick Summary

The EIDDF3400 disconnect switch is a reliable isolation solution for hazardous-location electrical systems in industrial facilities. Maintenance teams often struggle with safe de-energization during outages and strict regulatory demands. This model carries NEC/CEC compliance and hazardous-location certifications, including Class I Division 1 and Zone 1 ratings, Class II Division 1, and Class III, plus NEMA protection. For engineers and procurement professionals, the 400A fused design, 240-600 VAC/250 VDC capability, and copper-free aluminum enclosure translate into safer operations, longer service life, and lower lifecycle costs. The result is faster, safer maintenance and easier compliance across mission-critical applications. Designed for rapid installation and dependable field service, it supports scalable protection across expanding industrial networks.

Product Information

Extended Description

EIDDF3400 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EID disconnect switch, 400A, With switch, Fused, 50 HP/125 HP/250 HP/350 HP, Copper-free aluminum, 240-600 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series EID disconnect switch
Catalog Number
EIDDF3400
Product Length/Depth
17.19 in
Product Height
41.22 in
Product Width
13.49 in
Product Weight
271 lb
UPC
662276456068
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Zone 1 Class I, Division 2 Class I, Zone 2 Class II, Division 1 Class III
NEMA Rating
3 3R 4 7 9
Enclosure type
With switch
Fusing
Fused
Amperage Rating
400A
Horsepower
50 hp/125 hp/250 hp/350 hp
Material
Copper-free aluminum
Eaton Crouse-Hinds EIDDF3400 3D drawing SP3D Design Package - EID Explosionproof Compact Disconnect Switches EID Series Explosionproof, Compact Disconnect Switches Brochure EID Series Explosionproof, Compact Disconnect Switches catalog page EID Explosionproof, Compact Disconnect Switches UL certification EID Explosionproof, Compact Disconnect Switches UL certification IF 1696 - EID Fusible Disconnect Switch IF 1696 - EID Fusible Disconnect Switch IF 1696 - EID Fusible Disconnect Switch Eaton Specification Sheet - EIDDF3400 Eaton Specification Sheet - EIDDF3400
400A fused with-switch enclosure is the core feature, delivering high-current protection and immediate isolation in a single device, reducing arc-flash exposure during maintenance and simplifying lockout-tagout procedures. In hazardous-location environments such as chemical processing or mining, this feature translates to safer work and faster outage restoration. The device supports 240-600 VAC/250 VDC and HP ratings of 50/125/250/350, providing flexibility to handle multiple motor loads without swapping hardware, cutting spare-part inventories and downtime. This versatile range enables engineers to consolidate protections for complex lines and SCOAD (single-lailure) architectures, improving overall system reliability in plants with varying horsepower requirements. Copper-free aluminum construction offers corrosion resistance and lighter handling, enhancing lifecycle cost efficiency and enabling easier field service in harsh environments. The enclosure design complements installation in corrosive settings and reduces maintenance cycles by withstanding demanding duty cycles. NEC/CEC compliance and the stated hazardous-location ratings (Class I Division 1/2, Zone 1/2; Class II Division 1; Class III) align with strict regulatory expectations and NEMA protections (3, 3R, 4, 7, 9), reducing compliance risk and accelerating project approval. Comprehensive documentation, including 3D CAD packages, SP3D design packages, and installation sheets, supports rapid, accurate deployments and future scalability. This ecosystem minimizes field rework and enables a smoother upgrade path for evolving facilities. In practice, users experience safer, faster maintenance cycles, fewer miswires, and a clearer path to regulatory conformity when expanding hazardous-location protection.

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FAQs

EIDDF3400 is designed for hazardous locations with Class I Division 1/2 and Zone 1/2 ratings, plus Class II Division 1 and Class III. It uses a copper-free aluminum enclosure and standard mounting footprints compatible with Crouse-Hinds EID series enclosures. When installing, verify site classifications, follow IF1696 instruction sheets, and reference UL listings to ensure compliant wiring and safe enclosure fit.
The 400A amperage rating, fused protection, and HP range of 50/125/250/350 enable safe isolation for large motors. With 240-600 VAC/250 VDC capability, it accommodates diverse drive and motor configurations. This reduces the need for multiple devices, simplifies maintenance, and minimizes arc-flash risk during switching in demanding industrial applications.
EIDDF3400 carries NEC/CEC standards and NEC hazardous ratings, including Class I Division 1 and Zone 1, Class I Division 2 and Zone 2, Class II Division 1, and Class III. It aligns with NEMA 3, 3R, 4, 7, 9 protection levels, and is supported by UL certifications. These certifications support compliance in oil & gas, chemical, and mining environments.
By consolidating switching, fusing, and isolation in a single rugged enclosure, EIDDF3400 reduces maintenance time, lowers downtime costs, and minimizes the risk of human error during energization or de-energization. Its copper-free aluminum construction offers longer service life in corrosive environments, reducing spare-part and replacement costs over the equipment’s life cycle.
Access a full suite of assets including 3D CAD drawings, SP3D design packages, brochures, catalog pages, UL certification reports, installation instructions (IF1696 variants), and Eaton specification sheets for EIDDF3400. These resources streamline design reviews, improve accuracy in layouts, and support rapid procurement and installation planning.