Eaton DH326NDKLW Fusible Safety Switch - NEMA 12/3R
Part Number: DH326NDKLW
Quick Summary
Eaton DH326NDKLW Fusible Safety Switch is a heavy-duty solution for three-phase power control in industrial installations. This rugged switch helps reduce unplanned downtime by delivering reliable protection for demanding loads and critical processes. UL Listed certification confirms electrical safety, NEC barrier compliance strengthens safe installations, and the NEMA 12/3R enclosure guards against dust and moisture in harsh environments. Designed for three-pole, four-wire systems, with a 600 A rating at 240 V, it streamlines wiring and maintenance while boosting uptime.
Product Information
Extended Description
DH326NDKLW Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, lower viewing window, 600 A, NEMA 12/3R, Neutral, Three-pole, Four-wire, 240 V, Max Hp: 75, 200 hp (3PH @Std, TD)), (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH326NDKLW
UPC
782114196427
Product Length/Depth
12.75 in
Product Height
63 in
Product Width
23 in
Product Weight
203 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
For 2-pole applications; use outside poles of 3-pole switch
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
600A
HP rating - max
75, 200 hp (3PH @Std, TD))
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature: Fusible with neutral and Class H fuse provision. Business impact: Enables precise fault isolation and robust overload protection for demanding loads. Application: Ideal for three-pole feeders in manufacturing lines and heavy machinery. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel. Business impact: Delivers dust and moisture protection, reducing corrosion risk and downtime. Application: Enclosures in factory floors and outdoor or damp environments. Feature: Enhanced visible blade and lower viewing window. Business impact: Quick status verification cuts maintenance time and improves operator safety. Application: Routine switch checks and fault diagnosis in control panels. Feature: 600 A amperage at 240 V with four wires; three-pole design. Business impact: Supports large motors and high-current feeders, reducing panel complexity and wiring loops. Application: Main power distribution and motor control scenarios. Feature: UL Listed certification and NEC barrier compliance. Business impact: Meets regulatory requirements and industry standards, delivering safer, compliant installations. Application: System-wide safety across industrial facilities.
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FAQs
The DH326NDKLW supports a three-pole, four-wire configuration with a neutral, housed in a NEMA 12/3R enclosure. It is rated at 600 A and 240 V, compatible with large motor feeders and industrial power distribution. The unit accommodates conductors up to #2–600 kcmil and #1/0–750 kcmil Cu/Al, enabling versatile high-current installations.
Yes, the DH326NDKLW is UL Listed and designed to meet NEC barrier requirements (NEC 230.62). For 2-pole configurations, it is recommended to use the outside poles of a 3-pole switch. This combination provides validated electrical safety and safer installation practices for industrial power switching.
The included NEMA 12 and NEMA 3R enclosure, crafted from painted galvanized steel, offers strong protection against dust, dirt, and moisture. This enclosure rating reduces corrosion risk and helps maintain reliable operation in factory floors, outdoor locations, and washdown areas, lowering maintenance and replacement costs over time.
With a 600 A amperage rating at 240 V and compatibility with up to 75 to 200 horsepower (3P, standard/TD), the DH326NDKLW supports large motors and high-current feeders. This enables fewer distribution devices, faster commissioning, and reduced downtime, delivering a favorable total cost of ownership for heavy-duty applications.
You can access the Eaton datasheet at the product page and the specification sheet here: https://www.eaton.com/us/en-us/skuPage.DH326NDKLW.pdf and the catalog resource here: https://www.eaton.com/content/dam/eaton/products/low-voltage-power-distribution-controls-systems/swiching-devices/resources/switching-devices-catalog-vol1-tab2-ca08100003e.pdf. These sources provide detailed electrical, mechanical, and installation information.