Eaton DH323FWK316 Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH323FWK316
Quick Summary
Eaton heavy duty fusible safety switch protects motor circuits in industrial equipment. It delivers robust overload and short‑circuit protection in demanding environments. UL Listed, NEMA 4X corrosion resistance in a 316 stainless steel enclosure, and Class H fuse protection ensure safe, code‑compliant operation across harsh environments. This model combines rugged construction with straightforward wiring and installation, helping OEMs and maintenance teams reduce downtime and total cost of ownership. For washdown or outdoor installations, the DH323FWK316 provides reliable protection with long service life and predictable performance. It is well suited for motor controls, conveyors, pumps, and other critical loads where dependable disconnects are essential.
Product Information
Extended Description
DH323FWK316 Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 100 A, NEMA 4X, Grade 316 stainless steel, Class H, Three-pole, Three-wire, 240 V, Max Hp: 7.5, 15/ 15, 30/ 20 hp (1,3PH @Std/TD/250 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH323FWK316
UPC
786685235400
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.
Compliances
NEC 230.62 (C) Compliant Barrier
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
Wire size
#14-1/0 AWG Cu/Al
Amperage Rating
100A
HP rating - max
7.5, 15/ 15, 30/ 20 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: The DH323FWK316 uses a heavy‑duty fusible switch with a 100 A rating, three‑pole configuration, and 240 V operation, backed by Class H fuses. This delivers targeted protection for motor circuits, reducing nuisance trips and equipment damage while simplifying maintenance access in factory lines and processing equipment. Application: ideal for automation lines, pumps, and large conveyors where reliable isolation is required. Feature → Business Impact → Application: The 316 stainless steel enclosure delivers superior corrosion resistance, enabling long service life in washdown and outdoor environments. By minimizing corrosion-related failures, maintenance windows are shortened and uptime improves across food processing, chemical handling, and outdoor equipment. Feature → Business Impact → Application: NEMA 4X rated enclosure provides rugged weather and chemical resistance, reducing ongoing maintenance and sealing concerns. This supports installation in environments with high humidity or exposure to cleaning agents, such as manufacturing floors and marine-adjacent facilities. Feature → Business Impact → Application: Fusible without neutral configuration simplifies field wiring and maintains clear three‑wire control circuits. It supports straightforward integration into standard three‑phase systems, enabling faster commissioning and safer disconnection in routine maintenance. Feature → Business Impact → Application: Wide wire termination range Cu/Al #14‑1/0 accommodates diverse supply and motor leads, reducing the need for rewiring when upgrading equipment. This flexibility benefits retrofit projects, panel upgrades, and OEM machinery builds. Feature → Business Impact → Application: UL Listed status combined with NEC 230.62 barrier compliance aligns with code requirements, accelerating procurement approvals and reducing engineering risk for energy‑critical applications.
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FAQs
When retrofitting, verify a three-pole, 240 V supply and ensure the device is wired as fusible without neutral with Cu/Al conductors in the #14‑1/0 range. Confirm enclosure mounting fits your panel cutout, maintain proper clearance for service, and observe UL Listed wiring practices. The unit’s NEMA 4X, stainless steel housing simplifies installation in harsh environments.
The DH323FWK316 provides a 100 A amperage rating, three-pole operation, 240 V voltage, and Class H fuses. It supports horsepower ratings up to 7.5, 15/15, and 30/20 hp for 1P/3P configurations with standard/TD options at 250 VDC, making it suitable for a range of motor loads while maintaining safe, code‑compliant isolation.
Yes. The enclosure is made from 316 stainless steel and rated NEMA 4X, providing enhanced corrosion resistance and protection against wash-downs, humidity, and outdoor exposure. This makes it well suited for food processing, chemical handling, and outdoor equipment installations where durability is critical.
Key certifications include UL Listed protection, and NEC 230.62 compliant barrier for safe wiring separation. The combination of UL listing and rugged NEMA 4X housing helps ensure regulatory alignment, code compliance, and easier procurement for regulated environments.
The 316 stainless enclosure and NEMA 4X design reduce corrosion-related maintenance and downtime, extending service life in harsh environments. UL Listing and rugged construction simplify compliance and reduce engineering time, contributing to lower total cost of ownership and faster project payback in industrial facilities.