Eaton Heavy Duty Fusible Switch DH365NDKLW - UL Listed
Part Number: DH365NDKLW
Quick Summary
Eaton heavy duty fusible safety switch delivers reliable power control for industrial motor loads in control panels. Shutting down high-demand equipment safely and quickly without risking arc flash or extended downtime is a common challenge. This unit is UL Listed, complies with NEC 230.62 barrier requirements, and uses a rugged NEMA 12/3R enclosure with a painted galvanized steel body, offering durable protection in plant environments. Compared with lighter-duty alternatives, it provides higher amperage handling (400 A) and generous horsepower ratings up to 350 hp at 480/600 V, while retaining straightforward installation and maintenance. By pairing the three-pole design with a neutral and Class H fuse, it supports reliable protection for critical loads, enabling safer startups and reduced total cost of ownership.
Product Information
Extended Description
DH365NDKLW Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blades, 400 A, NEMA 12/3R, Class H, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0-(2)300 kcmil; or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH365NDKLW
UPC
782114196472
Product Length/Depth
11.2 in
Product Height
57.47 in
Product Width
22.66 in
Product Weight
135 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
400A
HP rating - max
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature: 400 A amperage rating, 600 V rating, three-pole, four-wire configuration with neutral. Business impact: Protects critical loads from overcurrent, enables safe motor startups, and reduces unscheduled downtime. Application: Main power distribution in 3-phase industrial panels where high horsepower motors are controlled. This setup translates to reduced arc-flash risk and compliant protection. Feature: NEMA 12, NEMA 3R painted galvanized steel enclosure and enhanced visible blades. Business impact: rugged outdoor- or dirty-environment performance with quick visual verification during maintenance. Application: Enclosures suitable for shop floors and utility rooms, improving maintenance efficiency. Feature: Class H fuse provision and fuse configuration with neutral. Business impact: reliable fusing strategy with easy integration into existing protection schemes; compatible with 2-pole applications using outer poles of a 3-pole switch for flexibility. Application: Control centers requiring adaptable safety switching. Feature: UL Listed, NEC 230.62 barrier compliant. Business impact: regulatory compliance and simpler procurement with documented safety certifications. Application: any installation requiring documented standards. Feature: 3P, 4-wire design supports up to 350 hp at 480/600 V. Business impact: high-performance motor control with scalable horsepower; Application: heavy-duty drive systems and process equipment in manufacturing facilities.
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FAQs
DH365NDKLW is a three-pole, four-wire switch with a neutral, rated for 400 A and 600 V, configured for NEMA 12/3R enclosures. It accepts conductors sized for up to (2)#1/0-(2)300 kcmil Cu/Al or (1)#1/0-(1)750 kcmil Cu/Al, and it notes compatibility for 2-pole applications by using the outside poles of a 3-pole switch.
Yes. The unit is UL Listed and complies with NEC 230.62 barrier requirements, providing safety certification and a defined protective barrier for installations in industrial environments.
The switch assembly measures 11.2 in in depth, 57.47 in in height, and 22.66 in in width, with an approximate weight of 135 lb. It uses a NEMA 12, NEMA 3R enclosure and a painted galvanized steel body for durability.
Ideal as the main power distribution switch for three‑phase systems up to 600 V in manufacturing equipment and control panels. It supports up to 350 hp at 480/600 V, providing reliable protection for high‑horsepower motors while preserving serviceability.
The unit carries Eaton’s one-year warranty from installation or 18 months from shipment, whichever occurs first, with standard support through Eaton’s selling policy 25-000.