Eaton DH263NRK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH263NRK
Quick Summary
The Eaton heavy duty fusible safety switch isolates and protects industrial electrical circuits in rugged environments. In practice, engineers struggle with limited fault isolation, long maintenance downtimes, and compatibility gaps between disconnects and harsh enclosures. UL Listing, NEMA 3R enclosure protection, and NEC 230.62 compliant barriers provide essential safety assurances in outdoor installations and demanding facilities. Designed for heavy-duty motor feeders and control panels, this DH263NRK model supports 100 A and 600 V operation, with fusible-with-neutral configuration for safer neutral current handling. Its rugged, galvanized enclosure and clear wiring pathway simplify field installation while maintaining code compliance, enabling faster commissioning, reduced service calls, and improved uptime across plant processes.
Product Information
Extended Description
DH263NRK Eaton: Eaton Heavy duty single-throw fused safety switch, 100 A, NEMA 3R, Painted galvanized steel, Class H, Fusible with neutral, Two-pole, Three-wire, 600 V, Max Hp: 30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH263NRK
UPC
786685176970
Product Length/Depth
22.5 in
Product Height
21.99 in
Product Width
12.75 in
Product Weight
17 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
Enclosure
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
Wire size
#14-1/0 AWG Cu/Al
Amperage Rating
100A
HP rating - max
30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc)
NEMA rating
NEMA 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH263NRK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 100A amperage rating and 600 V voltage rating in a two-pole, three-wire fusible switch. Business Impact: delivers reliable, code-compliant isolation for feeders and motors, reducing arc flash exposure and enabling safer maintenance. Application: ideal for motor feeders and control panels in manufacturing environments. Feature: NEMA 3R enclosure with painted galvanized steel construction. Business Impact: provides weather, dust, and corrosion resistance, extending service intervals in outdoor and wash-down areas. Application: outdoor electrical rooms and exposed industrial installations. Feature: Fuse class provision Class H and fusible with neutral configuration. Business Impact: ensures appropriate fuse protection with safe neutral handling, improving fault clearing performance and system safety. Application: power distribution to drives and line-side circuits. Feature: Wire size range #14-1/0 AWG Cu/Al and 3-wire configuration. Business Impact: supports flexible wiring options and straightforward field termination, reducing installation time and error potential. Application: panel wiring in new builds or retrofits. Feature: Compact dimensions and weight (22.5 in L, 21.99 in H, 12.75 in W, 17 lb). Business Impact: simplifies enclosure planning and minimizes footprint while maintaining sturdy protection. Application: space-constrained control cabinets and distributed-distribution panels. Feature: Compliance and safety alignment— UL Listed, NEC barrier, and NEMA 3R. Business Impact: ensures regulatory acceptance and safer operation with minimal compliance risk. Application: industrial facilities requiring formal certification for electrical safety and outdoor use.
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FAQs
The DH263NRK is designed for industrial installations requiring reliable outdoor or harsh-environment protection. With a NEMA 3R enclosure and a 600 V rating, it thrives in exposed locations like exterior switchrooms and outdoor machine bays, where weather resistance and robust disconnect capability are essential for uptime and safety.
The unit offers a 100 A amperage rating, 600 V voltage rating, and a 2-pole, 3-wire configuration with fusible protection. It supports HP ratings up to 30–40 hp (1 phase at 480–600 V TD/600 V DC) and uses wire ranges #14–1/0 Cu/Al, enabling a wide range of motor and feeder applications.
Class H fuses provide high interruption ratings and selectivity for feeders, while the fusible-with-neutral design ensures safer neutral current handling. This reduces arc energy in the neutral path, improving overall electrical safety and meeting common industrial protection standards for control panels and motor circuits.
Yes. The DH263NRK is UL Listed and features NEC 230.62 compliant barrier provisions, helping integrators meet essential electrical safety requirements. Combined with its NEMA 3R enclosure, the unit offers reliable protection for outdoor installations and ensures regulatory acceptance in many industrial environments.
Eaton provides a one-year warranty from installation or 18 months from shipment, whichever comes first. Routine maintenance should focus on insulation integrity, proper neutral connections, and ensuring the fusible links are within their service life. Regular inspection of the enclosure seals and mounting hardware helps sustain reliability in demanding conditions.