Eaton DH363FWK316 Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH363FWK316
Quick Summary
Eaton DH363FWK316 heavy duty fusible safety switch provides reliable power isolation for industrial control panels and motor circuits. In harsh plant environments, downtime and unsafe wiring pose persistent risks, so a rugged, corrosion-resistant solution is essential. UL Listed and NEMA 4X-rated, with a 316 stainless steel enclosure, this switch is built to withstand washdowns and exposure. Its fusible without neutral design and Class H fusing simplify installation while maintaining precise protection for 600 V, three-wire systems. This model fits seamlessly into Eaton's protection portfolio, enabling standardization across panels and locations, reducing spare parts variety, and delivering predictable performance for panel builders, OEMs, and maintenance teams.
Product Information
Extended Description
DH363FWK316 Eaton: Eaton Heavy duty receptacle safety switch, Corrosion resistant, 100 A, NEMA 4X, Grade 316 stainless steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH363FWK316
UPC
782116489992
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
24 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
316 stainless steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: The 100 A amperage rating with a three-pole, three-wire configuration provides robust isolation for motor circuits and control panels, reducing arc flash exposure and improving equipment protection in manufacturing lines. This translates to measurable uptime improvements and safer commissioning in high-cycle environments. Application: Ideal for 600 V, three-phase drives and feeders in OEM panel assemblies and remote switchgear installations. Feature → Business Impact → Application: A 316 stainless steel enclosure with a NEMA 4X rating delivers outstanding corrosion resistance in washdown and outdoor installations, minimizing maintenance cycles and replacement costs. This suits food processing, chemical, and pharmaceutical facilities where cleanliness and durability matter. Feature → Business Impact → Application: Fusible without neutral and Class H fuse configuration streamline wiring, enhance selective coordination, and simplify field servicing, reducing spares and downtime during fuse changes. Application: Perfect for new builds and retrofit projects in heavy industries requiring reliable protection. Feature → Business Impact → Application: UL Listed certification confirms compliance with electrical safety standards, supporting regulatory alignment and faster procurement decisions. Application: Suitable for panel builders and integrators seeking certified protection devices for factory automation. Feature → Business Impact → Application: Three-pole, three-wire design supports straightforward installation, consistent performance, and compatibility with Eaton’s protection ecosystem, helping reduce engineering time and errors during panel design and wiring.
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FAQs
The DH363FWK316 is a three-pole, three-wire device rated for 600 V and 100 A, designed for straightforward integration into 600 V three-phase feeds. Mounting typically follows standard electrical enclosure practices for NEMA 4X units, with appropriate clearance for servicing the fusible elements. Use Class H fuses and note that it is fusible without neutral, which simplifies wiring in panel boards and minimizes neutral handling in the field.
Yes, the DH363FWK316 supports 480 V three-phase service with specified horsepower ratings. It provides HP protection categories of up to 75 hp for 1/3 phase combinations at 480–600 V, depending on the motor and load characteristics. Always verify motor full-load current (FLC) and perform coordination studies to select the appropriate fuse class and protective settings.
The DH363FWK316 carries UL Listed certification, confirming compliance with recognized safety standards. Its NEMA 4X enclosure and 316 stainless steel construction offer reliable corrosion resistance in washdown and harsh environments. These certifications support safety and regulatory alignment for industries like food processing, chemical processing, and outdoor or damp locations.
Fusible without neutral means the switch interrupts the hot legs without requiring a neutral conductor in the protection circuit. This simplifies wiring in three-wire configurations and reduces neutral-related fault paths. Class H fuses provide fast-acting protection for motor and power circuits, enabling straightforward field maintenance and selective coordination when used with compatible equipment.
The combination of a rugged 316 stainless steel NEMA 4X enclosure, UL Listing, and corrosion resistance translates to longer service life and reduced maintenance frequency in challenging plants. The three-pole, fusible design simplifies installation, lowers spares inventory, and accelerates commissioning, delivering lower total cost of ownership and faster time-to-value for OEMs and panel builders.