Eaton DH363NDKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH363NDKW
Quick Summary
Eaton DH363NDKW heavy duty fusible safety switch provides reliable power isolation for industrial control panels and motor circuits. In rugged environments, maintenance downtime and safety certification delays can erode productivity. UL Listed protection with a NEMA 12/3R enclosure and a robust painted galvanized steel chassis supports harsh indoor conditions while delivering dependable disconnection. This design also features a 100 A rating, a 600 V maximum, and a neutral-enabled four-wire configuration, making it a versatile fit for commercial and industrial protection schemes. By pairing solid protection with straightforward installation, it helps keep downtime low and compliance straightforward, while integrating smoothly with existing motor control and safety systems.
Product Information
Extended Description
DH363NDKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blades, 100 A, NEMA 12/3R, Painted galvanized steel, Class H, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH363NDKW
UPC
782114022672
Product Length/Depth
25.5 in
Product Height
8 in
Product Width
13.25 in
Product Weight
30 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
For 2-pole applications; use outside poles of 3-pole switch. Can be field modified to meetNEMA 3R rainproof requirements when a factory provided drain hole is opened.
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
100A
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature → Business Impact → Application: The DH363NDKW uses a three-pole, fusible with neutral configuration to provide precise electrical isolation, improving safety and coordination for motor circuits in manufacturing lines. This reduces surge-related wear and supports predictable maintenance intervals, leading to lower total cost of ownership in automation systems. Application: suitable for industrial control panels and heavy-duty power distribution where four-wire, neutral-inclusive protection is required, such as packaging lines and process equipment. Feature → Business Impact → Application: A 100 A amperage rating paired with a 600 V maximum rating enables reliable protection for high-load drives and equipment, minimizing nuisance trips and enabling consistent uptime in continuous operation environments. Application: ideal for machine and line protection in metalworking and packaging facilities. Feature → Business Impact → Application: NEMA 12/3R enclosure standard provides indoor corrosion protection and rain resistance, with field modification options to meet NEMA 3R rainproof requirements, offering installation flexibility without compromising protection. Application: suitable for semi-enclosed plant rooms and outdoor-adjacent panels where weather infiltration is a concern. Feature → Business Impact → Application: Class H fuse provision and neutral-capable design support safe disconnects under fault conditions, improving fault clearing clarity and protecting wiring harnesses. Application: aligns with electrical protection standards in industrial motor control. Feature → Business Impact → Application: Lightweight and compact for its capacity (approximately 30 lb, 25.5 in length, 13.25 in width, 8 in height) affords easy integration into existing switchgear footprints, reducing installation time. Application: retrofit projects or new builds where space savings and quick commissioning matter. Feature → Business Impact → Application: UL Listed certification and documented warranty provide procurement confidence and regulatory alignment, supporting compliance documentation and service planning for facilities maintaining electrical protection inventories. Application: procurement for OEMs and maintenance teams seeking reliable, standards-aligned safety switches for critical equipment.
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FAQs
Begin by confirming the 100 A, 600 V ratings and ensuring the enclosure is prepared for a three-pole, four-wire configuration. Connect the two hot lines to the line terminals, attach the neutral to the neutral fusible path, and bond the protective earth. Verify clearance and torque values per the Eaton installation guide, then perform functional and safety checks.
DH363NDKW delivers 100 A amperage, 600 V voltage rating, and supports up to 30, 40/60, or 75 hp at 1/3 phase for 480/600 V systems. It is a three-pole, four-wire configuration with a Class H fuse provision and a NEMA 12/3R enclosure, enabling robust protection in demanding industrial environments.
The standard enclosure is NEMA 12, with field-modifiable notes allowing a factory-provided drain hole to enable NEMA 3R rainproof protection. This provides flexibility for indoor and semi-exposed locations, while maintaining safe isolation and fault protection for motor-driven equipment.
The DH363NDKW is UL Listed, providing recognized safety and performance compliance for electrical protective devices. This certification supports regulatory alignment, procurement confidence, and easier acceptance in maintenance and service contracts across industrial facilities.
Eaton offers a warranty policy (25-000) of one year from date of installation or eighteen months from shipment, whichever occurs first. This provides a clear service window for performance verification, spare parts planning, and risk mitigation during initial commissioning and early operation.