Eaton DH325NDKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH325NDKV
Quick Summary
Eaton DH325NDKV heavy duty fusible safety switch provides reliable electrical isolation for industrial power distribution. This single-throw device helps protect personnel and equipment by quickly disconnecting power in fault or maintenance conditions. It is designed for 400 A systems at 240 V with a three-pole, four-wire configuration, and features an enhanced visible blade for clear status indication. For engineers facing tight code requirements and demanding uptime targets, the DH325NDKV supports safer operation and easier troubleshooting. UL Listed and NEC 230.62 compliant barrier protections, along with a rugged NEMA 12/3R enclosure, deliver dependable performance in manufacturing floors, process plants, and data-center ancillary power cabinets. The switch balances robust protection with space-conscious design and is compatible with standard field wiring practices to reduce installation risk.
Product Information
Extended Description
DH325NDKV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 400 A, NEMA 12/3R, Neutral, Class H, Three-pole, Four-wire, 240 V, Max Hp: 50, 125/ 50 hp (3PH @Std, TD/250 Vdc), (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH325NDKV
UPC
786685972633
Product Length/Depth
64.5 in
Product Height
13 in
Product Width
26 in
Product Weight
123 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Heavy Duty Safety Switch (HDSS)
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125/ 50 hp (3PH @Std, TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Feature: High amperage and voltage specification (400 A, 240 V) with three-pole, four-wire configuration. Business Impact: Enables safe, scalable power distribution for large loads while maintaining reliable fault isolation. Application: Industrial feeders and panelboards in manufacturing lines. Feature: Fusible with neutral and Class H fuse provision. Business Impact: Provides precise protection against short circuits, reducing equipment damage and downtime. Application: Control circuits and motor feeders in heavy industry. Feature: Enhanced visible blade. Business Impact: Quick verification of disconnection status reduces risk during maintenance and startup checks. Application: Daily operations in high-hazard environments. Feature: NEMA 12/3R enclosure, painted galvanized steel. Business Impact: Durable, corrosion-resistant housing suitable for diverse plant environments, improving longevity and reducing maintenance costs. Application: Indoor and sheltered outdoor installations on production floors. Feature: Conductor and wiring flexibility (up to substantial conductor sizes with neutral). Business Impact: Simplifies field wiring, lowers labor costs, and accommodates legacy and upgraded systems. Application: Large-diameter Cu/Al conductors in power distribution networks. Feature: Safety and compliance packaging (UL Listed; NEC 230.62 barrier). Business Impact: Meets critical regulatory requirements, minimizes compliance risk, and supports audit readiness. Application: Facilities with strict safety and electrical codes. Feature: Robust physical dimensions and weight (64.5 in length, 26 in width, 13 in height; 123 lb). Business Impact: Predictable footprint for planning, reduces installation surprises, and enhances labor planning. Application: Site layouts and electrical room design for new builds or retrofits.
Get a Quick Quote for a Eaton DH325NDKV
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DH325NDKV?
Enquire Now
FAQs
For reliable performance, mount the DH325NDKV in a protected enclosure with a NEMA 12/3R rating. Plan for its 64.5 in length, 26 in width, and 13 in height, along with a 123 lb weight, to ensure proper clearance for wiring, maintenance access, and cooling. Use appropriate wiring methods for a three-pole, four-wire setup and verify neutral connections per Class H fuse configuration guidance.
The DH325NDKV is UL Listed and features a NEC 230.62 compliant barrier, ensuring safe separation of live parts and compliant installation practices. Its NEMA 12/3R enclosure provides environmental protection suitable for indoor and sheltered outdoor locations, reducing exposure to dust and moisture while maintaining operator safety during maintenance.
Yes. The terminal arrangement supports flexible conductor sizes, including combinations like (2) #1/0 to (2) 300 kcmil Cu/Al, or (1) #1/0 to (1) 750 kcmil Cu/Al. This versatility simplifies both new installations and retrofits by accommodating a range of feeder and control wiring configurations without compromising safety or performance.
Ideal for industrial power distribution where reliable fault isolation is critical, including manufacturing lines, process plants, and large control panels. Its 400 A rating, 240 V operation, and enhanced visible blade make it suitable for applications requiring quick status checks, robust protection, and long service life in demanding environments.
The DH325NDKV’s durable galvanized enclosure, UL listing, and robust fuse class (Class H) reduce maintenance frequency and risk of unplanned downtime. Its compatibility with large conductor sizes lowers installation costs, while the clear visibility of the disconnect improves diagnostic efficiency, contributing to lower labor costs and faster maintenance cycles.