Eaton DH225FWKW Heavy-Duty Fusible Safety Switch - UL Listed
Part Number: DH225FWKW
Quick Summary
Eaton DH225FWKW heavy duty fusible safety switch is engineered to provide reliable isolation and protection for demanding industrial circuits. Operators often confront unplanned faults that reduce uptime and elevate safety risk; this unit reduces arc flash exposure and simplifies maintenance with a clear window and visible blade design. Key certifications include UL Listed and robust enclosure protection with NEMA 12/3R, plus optional NEMA 4X stainless variants for harsher environments. This solution pairs seamlessly with standard fuses and neutral connections, delivering dependable fault isolation while enabling flexible integration into existing power distributions and motor control schemes.
Product Information
Extended Description
DH225FWKW Eaton: Eaton Heavy duty single-throw fused safety switch, 400 A, NEMA 12/3R, Fusible with neutral, Two-pole, Three-wire, 240 V, Max Hp: 50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc), (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
DH225FWKW
UPC
786680181566
Product Length/Depth
57 in
Product Height
11 in
Product Width
27 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
Heavy Duty Safety Switch (HDSS). Window & Visible Blade
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
High current capability and clear isolation: Amperage rating of 400A at 240V enables direct main feeder protection for heavy machinery, reducing the need for additional sectionalized switches and minimizing downtime. This improves line reliability and simplifies maintenance planning in production environments. Enclosure protection for harsh environments: The NEMA 12 and NEMA 3R enclosure design protects against dust, moisture, and exposure to routine industrial contaminants, supporting installation in workshops, warehouses, and outdoor-rated spaces where cleanliness and splash resistance matter. Fusible with neutral and Class H fuse provision: The fusible-with-neutral configuration allows selective isolation, improving fault clearing and coordination with downstream equipment while meeting standard fuse performance expectations. Window and visible blade for quick status checks: A dedicated window and visible blade design enable fast, non-contact verification of switch position, accelerating lockout/tagout procedures and reducing inspection time during routine maintenance. Conductor compatibility and installation versatility: Rated for large conductor sizes (Cu/Al up to 2/0–300 kcmil variants) and multiple wires, it supports flexible field wiring and straightforward integration with existing copper or aluminum feeders. Compliance-ready and future-proof: UL Listed certification, combined with a 600V max capability and a 240V rating, ensures compliance with industrial safety standards while maintaining compatibility across legacy and modern control panels.
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FAQs
When planning installation, verify the enclosure is mounted in a protected location suitable for NEMA 12/3R environments and confirm space for a 57 in depth, 11 in height, and 27 in width footprint. Ensure panel space accommodates the two-pole, three-wire configuration and that conductors Cu/Al sizes align with the listed ranges (up to 2/0–300 kcmil Cu/Al).
The DH225FWKW is rated for 400A at 240V (with a 600V maximum rating) and features UL Listed protection. Enclosure protections include NEMA 12 and NEMA 3R with an option for NEMA 4X stainless variants, making it suitable for dusty, damp, and outdoor environments in industrial settings.
Best suited for heavy commercial and industrial power distribution, including motor feeders, process lines, and main feeders in control panels. Its fusible with neutral configuration supports selective coordination, while the clear window and visible blade simplify field verification during startup, maintenance, and lockout/tagout procedures.
The DH225FWKW is UL Listed and designed with rugged NEMA-rated enclosures, meeting essential safety and performance standards for industrial equipment. This reduces validation time with auditors, supports compliance with electrical codes, and facilitates safer installation in demanding environments.
Maintenance focuses on periodic visual checks of the blade and window, verification of fuse status, and inspection of enclosure integrity. The robust UL Listed construction and window visibility reduce downtime during inspections, contributing to lower maintenance labor costs and improved uptime for critical manufacturing processes.