Eaton DH363NCK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH363NCK
Quick Summary
Eaton DH363NCK is a heavy duty fusible safety switch that provides safe power isolation for industrial equipment and machine control. This solution addresses the frustration of downtime and unsafe maintenance by delivering reliable,Code-compliant isolation in harsh environments. With UL Listed status, NEC 230.62 barrier compliance, and a rugged NEMA 4X enclosure, it is engineered to withstand washdown, debris, and moisture. The 100 A rating and 600 V maximum voltage support scalable protection for mid-size panels, while a fusible-with-neutral configuration simplifies wiring and maintenance. For shops seeking dependable protection in automation and electrical distribution, this switch offers a proven balance of safety, accessibility, and long-term value.
Product Information
Extended Description
DH363NCK Eaton: Eaton Heavy duty single-throw fused safety switch, 100 A, NEMA 4X, Non-metallic, KRYDON, 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
DH363NCK
UPC
782114296066
Product Length/Depth
16.46 in
Product Height
27.25 in
Product Width
14.25 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
Non-metallic, KRYDON
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 4X (Non-Metallic)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature: NEMA 4X enclosure with KryDON non-metallic material → Business Impact: Superior corrosion and washdown resistance reduce enclosure maintenance and improve reliability in harsh environments. Application: Outdoor or damp factory floors where protection against moisture is critical. Feature: Fusible with neutral and Class H fuse provision → Business Impact: Clear overcurrent protection with predictable fault clearing improves system safety and reduces risk of unintended outages. Application: Control circuits requiring reliable, codified isolation and easy fuse replacement. Feature: Three-pole, four-wire configuration → Business Impact: Simplified wiring layouts and robust three-phase protection streamline installation and service calls. Application: Medium-size motor control and machine control panels in manufacturing lines. Feature: 100 A amperage rating and 600 V voltage rating → Business Impact: Supports larger motors and higher voltage systems, enabling scalable protection without redesign. Application: Motor loads up to 30, 40/60, or 75 hp (1/3PH @480, 600 V). Feature: UL Listed and NEC barrier compliant → Business Impact: Regulatory confidence and faster procurement with documented compliance. Application: Industrial facilities following strict electrical codes and safety standards. Feature: Compact, non-metallic enclosure with defined dimensions (16.46 in depth, 27.25 in height, 14.25 in width) and 30 lb weight → Business Impact: Easier installation and service accessibility in constrained spaces. Application: Indoor control rooms or equipment closets with space limitations.
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FAQs
DH363NCK is a three-pole, four-wire fusible safety switch rated for 100 A and 600 V, designed for use in mid-size industrial panels. It accepts neutral in the fusible configuration and is suitable for 480/600 V systems. The NEMA 4X enclosure provides outdoor or washdown-capable protection, and the unit’s dimensions (16.46 in depth, 27.25 in height, 14.25 in width) support compact installations.
Key specs include a 100 A amperage rating, 600 V maximum voltage, and HP ratings up to 75 hp (1/3PH @480/600 V). It is a three-pole, four-wire configuration with fusible with neutral wiring and Class H fuse provisions. The device is UL Listed and builds toward NEC barrier requirements for safe, code-compliant operation.
Yes. The DH363NCK uses a NEMA 4X enclosure with KryDON non-metallic material, offering excellent resistance to moisture, dust, and chemical exposure. This makes it suitable for washdown zones and rugged manufacturing floors, reducing corrosion risk and maintenance costs over the product life.
The DH363NCK is UL Listed and NEC barrier compliant, which supports regulatory conformity and safe installation. Its NEMA 4X enclosure also indicates suitability for damp or wet environments. These certifications help facilities meet electrical codes and simplify supplier qualification during audits.
The DH363NCK helps reduce downtime by providing reliable isolation during maintenance and fault events, while its fuse-with-neutral design simplifies replacement and minimizes wiring errors. Its robust enclosure and compliance features reduce risk during upgrades and extend panel life, delivering predictable maintenance costs and faster qualification for automation projects.