Eaton DH226NRK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH226NRK
Quick Summary
Eaton DH226NRK heavy duty fusible safety switch provides reliable overload protection for industrial power distribution in motor control centers. When space is tight or maintenance access is limited, downtime and safety risk rise; this switch is designed for fast fuse replacement and safe isolation with an enhanced visible blade. UL Listed, NEC 230.62 compliant barrier, and a NEMA 3R painted galvanized enclosure deliver strong code compliance and weather resistance for both indoor and outdoor installations. Designed for 600 A circuits at 240 V, it supports high‑hp motors and large conductor sizes, helping facilities scale protection without reconfiguring upstream equipment. The result is improved reliability, faster maintenance, and lower lifecycle costs for critical industrial processes.
Product Information
Extended Description
DH226NRK Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 600 A, NEMA 3R, Class H, Two-pole, Three-wire, 240 V, Max Hp: 75, 200 hp (3PH @ Std fuse/time delay), (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH226NRK
UPC
782113207384
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
3-Phase hp ratings shown are grounded B phase ratings; 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
Amperage Rating
600A
HP rating - max
75, 200 hp (3PH @ Std fuse/time delay)
NEMA rating
NEMA 3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature: Heavy-duty fusible with neutral configuration provides robust overcurrent protection and allows safe, controlled shutdown of 240V circuits. Benefit: Reduces risk of arc flash and equipment damage, enabling safer startup and maintenance in manufacturing lines. Application: motor control centers and feeder circuits in production facilities. Feature: Enhanced visible blade allows quick status checks, speeding safety verification and fuse change decisions. Benefit: Lowers inspection time and minimizes unscheduled downtime during maintenance. Application: routine line checks in distribution panels. Feature: NEMA 3R enclosure delivers weather-resistant protection for indoor and outdoor installations. Benefit: Extends service life and reduces enclosure-related protection requirements. Application: outdoor switchgear, service entrances, and exposed installations. Feature: Fuse class provision Class H and fusible with neutral support high fault protection for critical loads. Benefit: Ensures proper coordination with upstream feeders and protects essential equipment. Application: pumps, fans, and heavy-duty industrial drives. Feature: Large conductor accommodation up to 600 kcmil aluminum or 750 kcmil equivalents with standard 1/0 to #2 wiring. Benefit: Simplifies wiring, reduces install time, and enables future capacity expansion. Application: plant feeders and high-amperage motor circuits. Feature: UL Listed and NEC 230.62 barrier compliant design simplifies documentation and ensures compliant installations. Benefit: Reduces compliance risk and accelerates project approvals. Application: facilities with strict electrical codes and safety requirements.
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FAQs
The DH226NRK is a two-pole, three-wire device rated for 600 A at 240 V. It accepts large conductors (up to 600 kcmil aluminum) and requires mounting in a NEMA 3R enclosure. Ensure a properly rated fuse for Class H protection, provide neutral as required, and align with NEC 230.62 barrier requirements. Plan for accessible fuse replacement and clear visibility of the enhanced blade for safe operation during maintenance.
This switch is UL Listed, with NEC 230.62 compliant barrier, and comes in a NEMA 3R enclosure. These certifications support safe outdoor and indoor installation, code-compliant isolation, and reliable performance in industrial facilities. The combination of UL Listing and NEC barrier compliance helps streamline audits and procurement documentation.
Yes. The DH226NRK utilizes a NEMA 3R enclosure, which is designed for indoor and outdoor use, providing protection against rain, dust, and incidental contact. For outdoor sites, ensure proper mounting, weather exposure considerations, and compliant wiring practices to maximize the enclosure’s protective features.
The unit is rated for 600 A and 240 V, two-pole, three-wire operation with fusible protection (Class H). It accommodates large conductors including up to 600 kcmil aluminum and up to 750 kcmil equivalents, with typical conductor inputs listed as #2–(1)600 kcmil and #1/0–(1)750 kcmil aluminum. Use standard fuses and follow the UL/NEC guidelines for safe terminations and protections.
The product is covered by Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Support includes documented installation guidelines, access to Eaton technical resources, and availability of replacement fuses and components to minimize downtime during maintenance and expansion projects.