Eaton DH367NDKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH367NDKW
Quick Summary
Eaton heavy duty fusible safety switch provides reliable isolation for high-current industrial power circuits. In demanding environments, engineers often struggle to deliver fast, safe disconnects while staying compliant with NEC and UL requirements. This model is UL Listed, NEC 230.62 barrier compliant, and housed in a resilient NEMA 12/3R enclosure designed for harsh service. With an 800 A rating at 600 V and up to 500 hp for 3-phase applications, it scales to large motors and feeders while protecting personnel and equipment. By combining robust construction with clear visibility and fault isolation, it reduces downtime, simplifies maintenance, and supports safe commissioning in factories, data centers, and processing facilities.
Product Information
Extended Description
DH367NDKW Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blades, upper viewing window, 800 A, NEMA 12/3R, Class L, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 500, 500 hp (3PH @480/600 V), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH367NDKW
UPC
782114196793
Product Length/Depth
14.25 in
Product Height
71.75 in
Product Width
25.38 in
Product Weight
213 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
Use outside poles for 2-pole applications.
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class L
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
500, 500 hp (3PH @480/600 V)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature: 800 A amperage rating with Class L fuse and fusible-with-neutral configuration. Benefit: Enables safe, code-compliant isolation of large feeders and motors at 600 V, reducing arc-flash risk and enabling reliable shutdowns. Application: Motor control centers and large distribution panels in manufacturing lines. Feature: NEMA 12, NEMA 3R enclosure construction. Benefit: Provides dependable protection against dust, moisture, and outdoor exposure in harsh industrial environments. Application: Plant floors, outdoor enclosures, and service entrances that demand rugged enclosure performance. Feature: Enhanced visible blades and upper viewing window. Benefit: Operators can verify switch position at a glance, improving safety and reducing misoperation during maintenance or startup. Application: Safety-critical control rooms and remote panels where quick status checks are essential. Feature: Three-pole, four-wire configuration with neutral. Benefit: Facilitates proper neutral grounding and allows larger conductors (Cu/Al) up to 750 kcmil, supporting high-power feeders. Application: Large motors and multi-branch feeders in commercial/industrial distribution. Feature: 600 V rating and 500 hp maximum for 3PH @480/600 V. Benefit: Delivers scalable protection for heavy-duty loads while maintaining system efficiency and uptime. Application: Industrial machines, press lines, conveyors, and processing equipment. Feature: Compliance, warranty, and documentation. Benefit: UL Listed status, NEC 230.62 barrier compliance, and a clear Eaton warranty policy reduce procurement risk and support audit-ready deployments. Application: Projects with strict safety certifications and long-term service commitments.
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FAQs
The DH367NDKW requires mounting in a compatible NEMA 12 or NEMA 3R enclosure with space for a three-pole, four-wire configuration. Plan for a 14.25 in depth, 71.75 in height, and 25.38 in width footprint, with an approximate weight of 213 lb. Ensure proper grounding and neutral connection per NEC guidelines and verify clearances for safe operation and maintenance access.
This unit is rated for 800 A, 600 V, with a maximum of 500 hp for three-phase operation at 480/600 V. It supports four conductors with a neutral, and conductor sizes range from #1/0 up to 750 kcmil Cu/Al. Verify wire sizing and torque per manufacturer guidelines for reliable, code-compliant connections.
Yes, the DH367NDKW is UL Listed and complies with NEC 230.62 barrier requirements. The enclosure is rated for NEMA 12 and NEMA 3R environments, offering robust protection and documentation to support compliance audits and safety programs in industrial facilities.
Ideal for large-motor feeders, processing lines, and distribution panels where high-current isolation is essential. The neutral-enabled, three-pole design, combined with a rugged enclosure, makes it suitable for manufacturing plants, water treatment facilities, and heavy equipment installations requiring reliable, maintainable safety switching.
The unit carries Eaton’s standard warranty: one year post-installation or 18 months from shipment, whichever comes first. Maintenance typically focuses on checking fuse status, blade visibility, and enclosure integrity. For critical systems, establish a preventive maintenance schedule aligned with uptime targets and integrate the UL-listed status into your compliance reporting.