Eaton DD365FWKW-00V3 Fused Safety Switch - UL Listed

Part Number: DD365FWKW-00V3
Manufacturer
Eaton
Part number
DD365FWKW-00V3

Quick Summary

The Eaton DD365FWKW-00V3 fused safety switch protects industrial panels by isolating power during maintenance. Operators often face downtime and lockout risks when energizing feeders, making safe isolation essential. UL Listed approval ensures reliable electrical protection, while a NEMA 4X, 304 stainless steel enclosure delivers washdown-ready durability. Rated for 400 A and 600 V, this three-pole device supports demanding process control with rugged reliability. The voltage indicators on the line and load sides, plus a window for quick status checks, streamline maintenance while reducing commissioning time. In addition, the design facilitates straightforward installation in harsh industrial environments, helping facilities meet safety and compliance timelines.

Product Information

Extended Description

DD365FWKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 400 A, NEMA 4X, Three-pole, Three-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD365FWKW-00V3
UPC
786679184615
Product Length/Depth
16.41 in
Product Height
24.32 in
Product Width
72.46 in
Product Weight
219 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty double door safety switch
Amperage Rating
400A
Fuse class provision
Class H
HP rating - max
250, 350 hp (3PH @480/600 V)
Voltage rating
600 V
Product Category
Watertight
Special features
V indicator line and load side, w/ window
Feature: 400 A amperage rating and 600 V maximum; Business Impact: Enables safe isolation of high-power motors and feeders without oversizing protection, reducing downtime and improving system uptime. Application: Manufacturing lines, metal fabrication, and process controls benefit from reliable power control with fewer nuisance trips. Feature: Three-pole, fusible without neutral configuration; Business Impact: Provides selective protection for three-phase loads while simplifying wiring and future fuse replacement. Application: Heavy machinery and pump systems operating on 480/600 V benefit from robust fault isolation and easy maintenance. Feature: NEMA 4X enclosure in 304 stainless steel; Business Impact: Delivers corrosion resistance and washdown durability, lowering maintenance costs in harsh environments. Application: Food and beverage, water treatment, and outdoor installations gain extended service life. Feature: Voltage indicators on line and load sides with a window; Business Impact: Quick status checks reduce commissioning time and enhance safety during maintenance. Application: Routine testing and lockout procedures are streamlined for technicians. Feature: UL Listed protection with Class H fuse provision; Business Impact: Ensures compliant, safe disconnection and reliable fuse protection, minimizing the risk of cascading faults. Application: Facilities needing regulatory compliance and predictable protection for critical loads. Feature: Watertight product category and heavy-duty design; Business Impact: Extends service life in challenging environments while maintaining safety margins. Application: Marine, coastal, or washdown-prone facilities benefit from dependable performance.

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FAQs

When installing the DD365FWKW-00V3, plan for a three-pole, 400 A, 600 V configuration and ensure a compatible bus and wiring scheme that supports 3-wire feeders. Use proper panel cutouts for the 16.41 in length, 24.32 in height, and 72.46 in width footprint, and verify secure mounting for a NEMA 4X environment. The device supports straightforward wiring with fusible without neutral configuration, reducing setup complexity.
Yes. The DD365FWKW-00V3 is designed for three-phase systems at 480/600 V and carries a 400 A amperage rating. It supports max horsepower of 250–350 hp for 3PH @ 480/600 V, enabling reliable protection for high-load motors and downstream equipment while maintaining safe isolation during maintenance.
The NEMA 4X enclosure, constructed from 304 stainless steel, makes this safety switch ideal for washdown environments and corrosive settings. Applications include water treatment, food and beverage processing, chemical plants, and outdoor installations where corrosion resistance and weather protection are essential alongside dependable electrical protection.
The DD365FWKW-00V3 carries UL Listed certification, aligning with common electrical safety requirements. Regular maintenance should include visual inspections of the enclosure, verification of voltage indicators, and periodic fuse checks or replacements per Class H fuse provisions. Adhering to Eaton’s warranty policy helps minimize ownership risk, with coverage extending to one year from installation or 18 months from shipment.
Upgrading to the DD365FWKW-00V3 can lower maintenance costs through reliable isolation that reduces unscheduled downtime and extends motor life. Its corrosion-resistant enclosure minimizes enclosure repairs in washdown zones, while the built-in indicators speed fault diagnosis and reduces technician time. While upfront costs may be higher than non-fused switches, longer service life and faster maintenance deliver favorable total cost of ownership over the equipment life cycle.