Eaton DH363NDK Fusible Safety Switch - UL Listed
Part Number: DH363NDK
Quick Summary
Eaton DH363NDK fusible safety switch provides reliable isolation for heavy-duty electrical switchgear in industrial environments. Operators often face costly downtime and safety risk when disconnecting under load, especially in high-horsepower applications. This unit carries UL Listed certification with NEC-compliant barriers and a NEMA 12/3R enclosure, plus field-modifiable NEMA 3R rainproof capability. Designed for 100 A and 600 V systems, it streamlines installation and reduces long-term maintenance costs, while offering predictable protection for motors up to 75 hp. In practice, it supports cost-effective protection for industrial motors and panels, aligning with procurement goals and reliability targets.
Product Information
Extended Description
DH363NDK Eaton: Eaton Heavy duty single-throw fused safety switch, 100 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible with 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
DH363NDK
UPC
782113206592
Product Length/Depth
10.22 in
Product Height
24.95 in
Product Width
10.76 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
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
The DH363NDK is a heavy-duty fusible safety switch rated at 100 A with a three-pole, four-wire configuration for robust three-phase protection. Feature → Business Impact → Application: The fusible-with-neutral design and Class H fuse provision deliver fast protection while allowing controlled maintenance outages, reducing arc-flash exposure and equipment damage in manufacturing lines. Application: motor control centers and service disconnects in 600 V systems benefit from predictable trip characteristics and easy fuse replacement, improving uptime metrics and safety compliance. The painted galvanized steel enclosure provides durable protection in harsh environments, while the NEMA 12/3R rating supports indoor and semi-outdoor installations. Application: industrial panels requiring reliable protection from dust, water ingress, and corrosion. The option to field-modify for NEMA 3R rainproof with a drain-hole modification delivers outdoor versatility without factory redesign. Application: outdoor substations and premium-risk environments where rain exposure is possible. The device’s HP rating—30, 40/60, 75 hp (1/3 PH @480/600 V)—offers scalable protection for motor loads across line sizes, reducing the need for multiple switchgear SKUs. Application: facilities upgrading to higher hp motors can standardize on a single 100 A fusible safety switch. The enclosure, fuse class, and NEС barrier compliance further support regulatory alignment and energy-management objectives. Application: projects needing NEC 230.62 barrier compliance and UL Listings to meet procurement standards. Overall, the DH363NDK provides a balance of protection, configurability, and ease of maintenance that translates to lower operating costs and faster commissioning in industrial settings.
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FAQs
Yes. The DH363NDK is a three-pole, four-wire fusible safety switch rated for 600 V, making it compatible with typical 3-phase, 4-wire distribution in industrial facilities. It includes a fusible with neutral configuration and a NEMA 12/3R enclosure, simplifying integration into existing panel layouts and wiring schemes.
The device provides a 100 A amperage rating with a maximum HP range of 30/40/60/75 hp (1/3PH at 480/600 V). It uses Class H fuses and is configured as fusible with neutral, offering clear replacement paths and predictable protection during motor startup and fault events.
Yes, there is a field-modification option to meet NEMA 3R rainproof requirements by altering a factory drain hole. This enables outdoor installation without a full enclosure redesign, preserving protection levels while expanding site placement options.
The DH363NDK is UL Listed and complies with NEC 230.62 barrier requirements. It also carries a NEMA 12/3R enclosure rating, aligning with common industrial safety and electrical protection standards for controlled environments and service disconnect points.
Maintenance is straightforward due to the service-friendly fuse-with-neutral design and standardized HP ratings, enabling quicker fuse replacement and reduced downtime. The unit’s rugged enclosure and field-modifiable rainproof option help minimize environmental wear, contributing to lower lifecycle costs and better return on investment for motor protection strategies.