Eaton DH365FWKW Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH365FWKW
Quick Summary
DH365FWKW is a heavy duty fusible safety switch providing safe isolation for large motor circuits. In harsh environments, downtime and maintenance complexity can undermine uptime. UL Listed and housed in a corrosion‑resistant NEMA 4X 304 stainless steel enclosure, it is built to endure moisture, dust, and chemicals. Operating at 600 V three‑phase with maximum horsepower ratings of 250 to 350 hp, it supports demanding drives and pumps. Compatible with neutral or ground lug kits for service entrance installation, it also accepts large conductors—from #1/0 to 750 kcmil Cu/Al—reducing field rewiring. Enhanced visible blades allow quick status checks, helping maintenance teams verify switch position without opening panels.
Product Information
Extended Description
DH365FWKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Corrosion resistant, enhanced visible blades, 400 A, NEMA 4X, Three-pole, Three-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (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
DH365FWKW
UPC
786679161005
Product Length/Depth
64 in
Product Height
13 in
Product Width
25 in
Product Weight
123 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
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 4X
Enclosure material
304 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
400A
HP rating - max
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature: 400 A amperage rating. Business impact: Provides headroom for large motor feeders, reducing nuisance trips and improving startup reliability. Application: Ideal for pumps, conveyors, and industrial fans in manufacturing lines. Feature: NEMA 4X stainless steel enclosure. Business impact: Delivers corrosion resistance in moist, dusty, or washdown environments, extending service life and lowering maintenance costs. Application: Outdoor installations and service entrances in food processing, water treatment, and chemical industries. Feature: Fusible safety switch with Class H fuse provision, fusible without neutral, three-pole configuration. Business impact: Robust protection with simplified wiring, enabling straightforward integration into motor control and service entrance setups. Application: Three-phase motor drives and protection at scale. Feature: Large conductor capacity and flexible wiring options. Business impact: Supports conductor sizes from #1/0 to 750 kcmil Cu/Al, reducing field rewiring and retrofit time. Application: Distribution feeders and plant-wide motor circuits. Feature: Service entrance compatibility with neutral or ground lug kit. Business impact: Eases installation, improves code compliance, and shortens commissioning. Application: Facility electrical distribution and plant service entrances. Feature: Enhanced visible blades and UL Listed assurance. Business impact: Quick status checks and verified safety positioning, minimizing maintenance risk. Application: Routine inspections and emergency isolation in demanding environments.
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FAQs
The DH365FWKW supports service entrance installations with neutral or ground lug kits installed. It is a three‑pole, fusible switch designed to handle large conductor sizes, including options such as #1/0 up to 750 kcmil Cu/Al, with configurations like (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al, simplifying retrofits and utility connections.
The DH365FWKW is rated for 400 A with maximum horsepower of 250 and 350 hp for three‑phase operation at 480/600 V. This rating makes it suitable for high‑load motor drives, pumps, and conveyors while maintaining robust overload protection.
Yes. It features a NEMA 4X enclosure made from 304 stainless steel and is UL Listed, providing excellent corrosion and ingress resistance for outdoor or washdown environments, helping to extend service life in challenging facilities such as food processing, water treatment, and chemical plants.
The unit provides a fuse class provision with Class H fuses and is fusible without neutral. It is configured as a three‑pole device with three wires, designed to protect three‑phase motor circuits while offering straightforward integration with existing protection schemes.
Eaton provides a warranty per policy 25‑000: one year from the date of installation or eighteen months from shipment, whichever occurs first. This, combined with the UL Listed certification and robust enclosure, supports long‑term reliability and predictable maintenance budgeting.