Eaton DH266FPKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH266FPKW
Quick Summary
Eaton heavy duty fusible safety switch provides reliable line isolation for industrial equipment and large commercial installations. Maintenance teams confront hidden fuse statuses and slow fault isolation—this unit features a window and visible blade for quick verification. UL Listed and a NEMA 4 painted steel enclosure deliver safe operation in harsh environments, while the enhanced window/blade design supports rapid status checks. For procurement and installation, the 2-pole, cartridge fuse configuration and 600 A / 600 V ratings simplify protective circuits and reduce downtime, delivering measurable business value. The product is suitable for heavy commercial and industrial applications, with Eaton's warranty and service support enhancing total cost of ownership.
Product Information
Extended Description
DH266FPKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blade, 600 A, NEMA 4, Painted steel, Cartridge, 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
DH266FPKW
UPC
786680181931
Product Length/Depth
63 in
Product Height
14.3 in
Product Width
25 in
Product Weight
160 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 4
Enclosure material
Painted steel
Fuse class provision
Cartridge
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 4
Voltage - max
600 V
Voltage rating
600 V
Application
Heavy commercial and industrial
Series
K
The DH266FPKW delivers 600 A at 600 V, with a maximum horsepower of 50 at 250 Vdc, in a two-pole, cartridge fuse configuration. This combination reduces arc exposure and simplifies fuse sourcing, translating into lower maintenance costs and fewer stock-keeping units. In practice, industrial facilities with large motors and drive systems can consolidate protection devices, freeing space and improving reliability. The NEMA 4 enclosure in painted steel withstands dust, water spray, and harsh conditions, extending service life on factory floors, outdoors, or in damp environments. Installation is straightforward within existing panels or standalone enclosures, with accessible wiring terminations and standard conduit options. Enhanced visible blade and window enable quick visual verification without opening the enclosure, minimizing downtime during routine checks or fault conditions. The fusible cartridge design, without neutral, simplifies wiring for many circuits and supports rapid fuse replacement, reducing maintenance time. The unit is compatible with large conductor sizes, including 1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al, enabling flexible retrofits and future upgrades. A one-year warranty from installation or eighteen months from shipment provides peace of mind for end users and integrators. With a deep footprint of 63 in, a width of 25 in, and a height of 14.3 in (weight 160 lb), planning for space and support structure is straightforward in mid- to large-scale facilities.
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FAQs
DH266FPKW is a two-pole fusible safety switch with a cartridge fuse, designed to retrofit into standard industrial panels and switchgear. It accommodates large conductors and uses a NEMA 4-painted steel enclosure, making it suitable for indoor and protected outdoor applications. When planning installation, verify available depth (63 in) and ensure mounting supports allow access to the window and blade for status checks.
The DH266FPKW is rated for 600 A at 600 V, with two wires and two poles. It uses cartridge fuses and does not require a neutral. The device supports HP up to 50 at 250 Vdc, and is intended for high-current protection in heavy industrial circuits, integrating smoothly with large motor and drive systems.
Yes. With a 600 A rating, 600 V operation, and a heavy duty fusible design, the DH266FPKW is well-suited for motor control, conveyors, pumps, and other high-current equipment in manufacturing and processing environments. The two-pole configuration provides effective isolation, while the cartridge fuse arrangement supports reliable protection and quicker fuse replacement.
The DH266FPKW carries UL Listed certification and uses a NEMA 4 enclosure, suitable for demanding industrial environments. The window and enhanced visible blade improve safety and status visibility, and the unit is designed for heavy commercial and industrial applications, ensuring compliance with common electrical protection standards in industrial facilities.
Eaton provides a warranty of one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance includes fuse verification/replacement and periodic checks of the window/blade for clear visibility. Regular inspection of the cartridge fuse and enclosure seals helps maintain optimal protection and minimizes unplanned downtime.