Eaton DH266FGK Heavy duty fusible safety switch - UL Listed
Part Number: DH266FGK
Quick Summary
Eaton DH266FGK heavy duty fusible safety switch isolates power for service entrances and industrial control panels. Maintenance teams often face downtime from undersized protection or wiring errors; this unit combines a NEMA 1 painted steel enclosure with Class H fusible protection to minimize outages. UL Listed and NEC 230.62 compliant barriers support safe, code-compliant operation in indoor environments, while a rugged design ensures reliability for service entrances and industrial controls. With a 600 A, 600 V rating and a 50 HP capability at 250 Vdc, it delivers strong protection without sacrificing ease of installation or future scalability.
Product Information
Extended Description
DH266FGK Eaton: Eaton Heavy duty single-throw fused safety switch, 600 A, NEMA 1, Painted steel, Class H, Fusible, No 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
DH266FGK
UPC
782113207537
Product Length/Depth
58 in
Product Height
12 in
Product Width
27.5 in
Product Weight
152 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 1
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 1
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
The DH266FGK uses a 600 A amperage rating with a 600 V voltage rating, providing essential protection for high-current, low-impedance circuits common in modern facilities. This feature translates to tangible business outcomes: improved equipment uptime and reduced fault-related downtime, especially in service entrance scenarios where reliability is critical. The two-pole, two-wire configuration without neutral simplifies wiring during installation and minimizes potential fault paths, while the Class H fuse enhances interrupt capability and reduces maintenance frequency by tolerating high fault currents. Its NEMA 1 enclosure, painted steel construction, and NEC 230.62 barrier compliance deliver rugged indoor protection and safer operation in demanding environments. The unit is suitable for Upgrades of legacy panels and new builds alike, with lug-kit compatibility for service entrances. Overall, this switch supports safer, code-compliant protection with predictable maintenance cycles and lower lifecycle costs.
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FAQs
For service entrance use, ensure the unit is installed in an indoor, protected location capable of supporting a 58 in depth, 27.5 in width, and 12 in height enclosure. Use a neutral or ground lug kit if required, and follow NEC 230.62 barrier guidelines for safe separation of conductors. The lug kit compatibility simplifies field wiring while maintaining code compliance.
Class H fuses are designed for high interrupt ratings and reliable fault isolation in heavy-current circuits. This reduces nuisance fuse failures and extends service intervals. For 600 A systems, replacement is straightforward with standard Class H replacements, minimizing downtime and ensuring consistent protection during commissioning and ongoing operation.
Yes, the DH266FGK is rated for 600 V and provides a 50 HP capacity at 250 Vdc, making it suitable for motor or drive protection in industrial equipment up to these limits. Its two-pole, 2-wire design supports reliable isolation without the need for a neutral, simplifying integration with existing control wiring.
The DH266FGK is UL Listed, ensuring recognized safety performance. It also features NEC 230.62 compliant barrier construction for safe service entrance installations. Its NEMA 1 enclosure further guarantees indoor protection, aligning with typical industrial facility requirements and reducing validation time during audits.
The unit measures 58 in (L) x 12 in (H) x 27.5 in (W) and weighs 152 lb, with a robust painted steel enclosure. While upfront costs are higher than smaller switches, the long service life, reduced downtime, and simplified compliance translate to lower total cost of ownership and faster time-to-right-size for protection in demanding facilities.