Eaton DH266FWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH266FWK
Quick Summary
Eaton DH266FWK heavy duty fusible safety switch isolates high-current circuits in industrial control panels. Maintenance teams face corrosion, moisture, and harsh-environment wear that threaten uptime. This unit is UL Listed with a NEMA 4X stainless enclosure and Class H fusing, delivering reliable protection in corrosive or outdoor installations. The 600 A, 600 V rating, two-pole design, and fusible configuration simplify wiring while maintaining compliance. By combining rugged construction with easy serviceability, it reduces downtime and maintenance costs, supports safe startup routines, and aligns with critical safety and reliability requirements in manufacturing, oil and gas, and process industries. Designed for retrofit into existing panels, it simplifies maintenance planning and extends equipment life.
Product Information
Extended Description
DH266FWK Eaton: Eaton Enhanced visible blade single-throw safety switch, Corrosion resistant, 600 A, NEMA 4X, 304 stainless steel, Class H, Two-pole, Two-wire, 600 V, Max Hp: 50 at 250 Vdc, (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH266FWK
UPC
786685926445
Product Length/Depth
64 in
Product Height
13 in
Product Width
26 in
Product Weight
140 lb
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Two-pole
Number of wires
2
Type
Heavy duty fusible safety switch
Amperage Rating
600A
HP rating - max
50 at 250 Vdc
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
The DH266FWK uses a 304 stainless steel, NEMA 4X enclosure for corrosion resistance in demanding environments. This rugged enclosure reduces failures from washdowns and outdoor exposure, extending service life in facilities such as chemical plants, food processing, and outdoor substations. Rated 600A at 600V, this switch handles large feeders with confidence and minimizes the need for staged protection. In heavy manufacturing and process industries, reliable current switching translates to higher uptime and steadier production. Fuse class provision is Class H, and the unit is fusible without neutral, simplifying protective coordination and reducing wiring complexity. With a two-pole, two-wire configuration, installation remains straightforward while maintaining safety margins. Feeder connections support up to #2 to 600 kcmil and up to #1/0 to 750 kcmil Cu/Al per specified configurations, aiding large-diameter conductor installations. Its footprint—64 in long, 26 in wide, 13 in high—and 140 lb weight strike a balance between robust protection and serviceability in retrofit projects. UL Listed status validates adherence to safety standards, while the NEMA 4X stainless enclosure and corrosion resistance deliver long-term reliability. This combination reduces maintenance intervals and supports a favorable return on investment in demanding industrial settings.
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FAQs
For outdoor or damp environments, plan for the 64 in length, 26 in width, and 13 in height of the DH266FWK, plus a 140 lb footprint. The 304 stainless steel, NEMA 4X enclosure provides corrosion resistance and washdown durability, so mount in accessible, code-compliant locations with clear service access and appropriate space for wiring terminations and replacement fuses.
The switch is rated 600 A at 600 V and configured as a two-pole, two-wire fusible device with a Class H fuse. It operates without a neutral, simplifying wiring and protective coordination in high-current feeder applications. The unit also supports heavy feeders and process-line isolation in industrial automation setups.
Yes. The DH266FWK accommodates large feeders, with conductor options including up to 600 kcmil Cu/Al and up to 750 kcmil Cu/Al in specified configurations. Wiring is arranged for two-pole operation with two wires, and the fusible configuration eliminates the need for a neutral conductor, simplifying installation and improving protection in high-current circuits.
The DH266FWK is UL Listed, indicating compliance with recognized safety standards. It features a NEMA 4X enclosure rated for corrosion resistance in demanding environments and is constructed from 304 stainless steel for long-term durability. These attributes support compliance in industrial facilities requiring robust protective switching and reliable enclosure protection.
Expect reduced downtime due to rugged, corrosion-resistant construction and reliable UL-listed safety performance. The 64 in by 26 in by 13 in enclosure handles large conductors and simplifies service procedures, while the Class H fuse configuration provides predictable fault isolation. Overall, this translates to longer service life, lower maintenance costs, and improved protection for critical industrial processes.