Eaton DH266FPK Fusible Safety Switch - UL Listed
Part Number: DH266FPK
Quick Summary
Eaton DH266FPK Fusible Safety Switch is a heavy-duty switch used to protect electrical feeders in industrial equipment. This solution minimizes downtime and maintenance headaches by delivering dependable isolation in harsh environments, where arc-flash risk and unexpected outages threaten productivity. UL Listed certification and a NEMA 4 enclosure provide proven safety and environmental resilience, while the Class H fuse configuration supports reliable overcurrent protection without neutral. Designed for two-pole, two-wire installations at up to 600 V, it fits seamlessly into existing 600 V electrical protection schemes and motor control panels. For procurement teams, this translates to predictable performance, easier compliance, and a clear path to scalable, safe power distribution. This combination supports reliable maintenance scheduling and lower total cost of ownership.
Product Information
Extended Description
DH266FPK Eaton: Eaton Enhanced visible blade single-throw safety switch, 600 A, NEMA 4, Painted steel, Class H, Fusible without neutral, 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
DH266FPK
UPC
786685926438
Product Length/Depth
64 in
Product Height
13 in
Product Width
26 in
Product Weight
140 lb
Certifications
UL Listed
Enclosure
NEMA 4
Enclosure material
Painted 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 4
Voltage rating
600 V
Eaton Specification Sheet - DH266FPK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 600A amperage rating and 600V operating capability provide robust protection for heavy-load feeders, reducing nuisance trips and minimizing unplanned downtime. Business impact: Improved line reliability and lower maintenance costs. Application: Suitable for motor drives and power distribution in manufacturing environments where high-current protection is essential. Feature: NEMA 4 painted steel enclosure delivers weatherproof, washdown-resistant protection. Business impact: Enhanced environmental resilience minimizes corrosion risk and downtime from harsh plant conditions. Application: Outdoor installations, damp environments, or areas with frequent cleaning in industrial facilities. Feature: Fusible without neutral configuration with Class H fuse provision. Business impact: Simplified wiring and precise overcurrent protection while preserving control circuit simplicity. Application: Two-pole, two-wire installations in process lines and equipment rooms. Feature: Two-pole, two-wire design with standard conductor range (#2 to 600 kcmil copper or 1/0 to 750 kcmil aluminum). Business impact: Streamlined wiring reduces installation time and potential wiring errors. Application: Large-scale power-distribution panels and motor control centers. Feature: HP rating of 50 at 250Vdc and 600V voltage rating. Business impact: Clear guidance for DC motor and load protection with extended capability in mixed AC/DC environments. Application: DC drives and mixed-voltage control panels in heavy industry. Feature: Heavy-duty steel construction and substantial enclosure footprint (64 in depth, 26 in width, 13 in height, 140 lb). Business impact: Rugged, long service life with predictable fit in retrofit projects. Application: Panel replacements and retrofit of aging distribution systems in manufacturing plants.
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FAQs
Plan for a 64 in depth enclosure with 26 in width and 13 in height, ensuring sufficient mounting clearance and door access for fuse changes. Use two-pole, two-wire wiring with fusible configuration without neutral, and size conductors per the spec (#2 to 600 kcmil copper or 1/0 to 750 kcmil aluminum). This simplifies installation while maintaining safe isolation.
The switch provides a 600 A amperage rating and 600 V voltage rating, with a HP rating up to 50 at 250 Vdc. The Class H fuse provision supports reliable overcurrent protection, and the two-pole design ensures clear circuit isolation. UL Listed certification confirms compliance with established safety standards.
Yes. The NEMA 4 enclosure offers weatherproofing and washdown resistance for harsh industrial settings. Painted steel construction provides durability, and UL Listed certification supports installation in facilities requiring recognized safety credentials. This makes it suitable for outdoor panels or damp plant floors where moisture exposure occurs.
The DH266FPK is UL Listed and housed in a NEMA 4 enclosure designed to withstand dust, water, and washdown exposure. It supports 600 V systems and is compatible with 600 A feeders and two-pole, two-wire configurations, aligning with common electrical protection practices and safety codes.
By delivering dependable overcurrent protection and safe isolation, the DH266FPK reduces unplanned downtime and maintenance costs. Its robust construction and long service life, combined with easy fuse replacement, lower replacement intervals in harsh environments. A single, reliable solution simplifies procurement and stabilizes maintenance budgets for electrical protection projects.