Eaton DH326FWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH326FWK
Quick Summary
Eaton heavy duty fusible safety switch DH326FWK provides rugged protection for industrial power distribution. In facility environments where uptime matters, downtime, corrosion, and difficult servicing threaten reliability. UL Listed, plus a NEMA 4X corrosion-resistant 304 stainless steel enclosure and Class H fuse protection, help ensure compliant, durable installations. Its three-pole, fusible-without-neutral configuration simplifies control wiring while delivering dependable isolation. The unit accommodates large Cu/Al lug capacities and supports service entrances with neutral or ground lug kits for flexible installation. With dimensions of 12.75 in depth, 63 in height, and 23 in width and a 200 lb weight, it suits demanding spaces while providing robust protection at 240 V and 600 A. This combination reduces maintenance and total cost of ownership.
Product Information
Extended Description
DH326FWK Eaton: Eaton Enhanced visible blade single-throw safety switch, Corrosion resistant, 600 A, NEMA 4X, 304 stainless steel, Class H, Three-pole, Three-wire, 240 V, Max Hp: 75, 200 hp (3PH @Std, TD)), (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH326FWK
UPC
782114357286
Product Length/Depth
12.75 in
Product Height
63 in
Product Width
23 in
Product Weight
200 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
600A
HP rating - max
75, 200 hp (3PH @Std, TD))
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH326FWK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The DH326FWK delivers a 600 A amperage rating at 240 V, enabling protection of large feeders and motor circuits without oversizing switchgear, which reduces upfront costs and energy losses. Application: ideal for high-load industrial drives and distribution panels where reliability and fast fault isolation are essential. Feature → Business Impact → Application: A NEMA 4X enclosure in 304 stainless steel provides exceptional corrosion resistance and washdown compatibility, extending service life in outdoor or harsh environments. Application: suitable for service entrances, outdoor substations, and food/beverage facilities requiring robust enclosure protection. Feature → Business Impact → Application: Three-pole design with fusible without neutral simplifies wiring and minimizes installation complexity, lowering commissioning time. Application: retrofit projects and new builds where quick, safe wiring is critical. Feature → Business Impact → Application: Class H fuse provision supports proper interrupting rating and coordination with other protection schemes, improving safety margins. Application: critical for electrical systems with high fault current potential. Feature → Business Impact → Application: Lug configuration and conductor capacity (Cu/Al lug options up to 750 kcmil equivalent) offer flexible, future-proof wiring and easier replacement. Application: large feeders and mixed conductor environments. Feature → Business Impact → Application: Service entrance compatibility with neutral/ground lug kits enables compliant, code-ready installations with minimal accessory procurement. Application: utility entrances and panel installations that require quick compliance. Feature → Business Impact → Application: Dimensions and weight (12.75 in depth, 63 in height, 23 in width, 200 lb) inform enclosure footprint planning and mounting strategies. Application: space-constrained installations and retrofit projects needing precise fit and robust protection.
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FAQs
Yes, the DH326FWK is suitable for service entrance use when installed with the appropriate neutral or ground lug kit. It supports Cu/Al conductors and features lug capacity aligned with #2-600 kcmil and #1/0-750 kcmil ranges, allowing flexible field wiring and straightforward integration into existing service equipment.
The unit is rated for 600 A at 240 V with a three-pole configuration and fusible without neutral. This enables reliable fault interruption for large feeders and motors, while simplifying wiring by avoiding neutral conductors in the switch itself.
Yes. The enclosure is NEMA 4X and constructed from 304 stainless steel, delivering excellent corrosion resistance and washdown suitability. UL Listed certification further assures compliance for harsh environments typical in outdoor substations and process facilities.
The DH326FWK carries UL Listed certification and features a NEMA 4X stainless steel enclosure, with Class H fuse protection. These certifications support safe operation, regulatory compliance, and dependable performance in demanding industrial installations.
Eaton provides a warranty aligned with Selling Policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. Post-sale support includes access to datasheets, specification sheets, and product guidance to optimize lifecycle performance.