Eaton DH226NWKW Heavy duty fusible safety switch - UL Listed
Part Number: DH226NWKW
Quick Summary
Introducing Eaton heavy duty fusible safety switch DH226NWKW, a high-capacity disconnect designed for heavy commercial and industrial applications. This unit provides safe, code-compliant power isolation at 800 A and 240 V, with a rugged NEMA 12/3R enclosure. Engineers grapple with downtime, maintenance costs, and safety risks; this switch reduces both by offering visible blade access, rapid fault isolation, and a durable Class L fuse configuration. UL Listed compliance and a painted galvanized steel enclosure support long life in demanding environments while meeting important industry standards. Integrating this device with existing motor control and protection schemes improves protection, minimizes nuisance trips, and delivers measurable business value through safer operations and faster service turnaround.
Product Information
Extended Description
DH226NWKW Eaton: Eaton Heavy duty single-throw fused safety switch, 800 A, NEMA 12/3R, Painted galvanized steel, Class L, Two-pole, Two-wire, 240 V, Max Hp: 100, 250 hp (3PH @ Std fuse/time delay), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH226NWKW
UPC
786680181658
Product Length/Depth
12.75 in
Product Height
71.75 in
Product Width
24.9 in
Product Weight
165 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 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class L
Fuse configuration
Fusible without neutral
Number Of Poles
Two-pole
Number of wires
2
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
100, 250 hp (3PH @ Std fuse/time delay)
NEMA rating
NEMA 4X (Stainless)
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature: 800 A amperage rating at 240 V enables direct, uninterrupted disconnects for large 3-phase motors. Business Impact: reduces wiring complexity and the need for multiple smaller switches, cutting installation time and lifecycle costs while improving fault isolation. Application: ideal for motor control centers and heavy industrial equipment where reliable power shutoff is critical.\n\nFeature: NEMA 12, 3R enclosure in painted galvanized steel delivers tough protection against dust, moisture, and impact. Business Impact: extends service intervals and lowers enclosure-related failures, translating to lower maintenance costs and less downtime. Application: suited for harsh factory floors, outdoor enclosures, and service entrances where weather-resistance matters.\n\nFeature: Class L fuse provision with fusible without neutral configuration offers selective coordination for motor feeders. Business Impact: reduces fault currents and minimizes collateral outages, helping facilities meet short-circuit and protection requirements. Application: protects large motors and feeders in manufacturing lines.\n\nFeature: Two-pole, two-wire configuration rated 240 V, with 600 V max and 800 A capacity. Business Impact: flexible protection for a wide range of industrial loads, enabling standardization across panels and motor control centers. Application: heavy machinery, conveyors, pumps, and process equipment.\n\nFeature: Window and visible blade for positive status indication, UL Listed. Business Impact: operators and technicians can confirm disconnect status at a glance, reducing risk and service time. Application: any maintenance or lockout-tagout scenario in industrial settings.
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FAQs
For installation, note that the DH226NWKW is a two-pole, two-wire switch rated for 240 V with 800 A capacity and Class L fuses. It uses a NEMA 12/3R painted galvanized steel enclosure suitable for indoor and protected outdoor environments. Plan space for a 12.75 in depth, 71.75 in height, and 24.9 in width, and follow lockout-tagout procedures while confirming UL Listed installation guidelines.
The DH226NWKW provides an 800 A amperage rating at 240 V nominal (with a 600 V max rating). It uses a Class L fuse provision and is fusible without neutral in a two-pole, two-wire configuration. It supports three-phase motor loads with time-delay considerations up to 250 hp, aligning with UL Listed safety requirements for industrial protection.
Yes. The DH226NWKW is designed for heavy commercial and industrial motor protection, supporting up to 100 hp standard or 250 hp with time-delay for 3-phase applications. Its rugged NEMA 12/3R enclosure and UL Listed status make it appropriate for production lines, conveyors, and process equipment where reliable isolation and protection are critical.
The DH226NWKW carries UL Listed certification and is built with a NEMA 12/3R enclosure, offering robust protection against dust, moisture, and impact. It features a two-pole, two-wire design with visible blade and window for positive status, meeting stringent industrial safety standards and simplifying on-site compliance and audit readiness.
Warranty terms follow Eaton Selling Policy 25-000, providing one year from installation or eighteen months from shipment, whichever occurs first. Regular maintenance should include periodic visual inspections, verification of the window/blade visibility, fuse condition checks, and adherence to lockout-tagout procedures. Availability of spare parts and service support through Eaton and authorized distributors supports long-term reliability.