Eaton DH368NRK heavy duty fusible safety switch - UL Listed
Part Number: DH368NRK
Quick Summary
The Eaton DH368NRK heavy duty fusible safety switch protects power systems in demanding industrial environments. For engineers and procurement teams, space, durability, and regulatory compliance can derail projects; this unit addresses those challenges with a rugged NEMA 3R enclosure and a fusible-with-neutral design. UL Listed certification underpins safety and performance, while the painted galvanized steel enclosure withstands harsh conditions. With a 600 V rating and 1200 A amperage, it integrates seamlessly into large distribution schemes and three-pole, four-wire configurations. The design supports straightforward installation, reliable maintenance planning, and long-term total cost of ownership improvements through reduced downtime and fewer spare parts.
Product Information
Extended Description
DH368NRK Eaton: 1200 A/3P HD Fusible Safety Switch 600V w/Neut Nema 3R
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH368NRK
UPC
782114313046
Product Length/Depth
72 in
Product Height
21 in
Product Width
48 in
Product Weight
465 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
Enclosure
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
1200A
NEMA rating
NEMA 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH368NRK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 1200 A amperage rating provides robust protection for high-load industrial feeders. Business impact: Enables reliable power distribution to heavy machinery with reduced fuse blows and downtime. Application: Large manufacturing lines, stamping presses, and heavy motor control centers. Feature: Fusible with neutral configuration simplifies control wiring and neutral grounding paths. Business impact: Streamlines panel wiring, lowers installation time, and improves fault isolation. Application: 600 V three-phase systems with neutral return paths. Feature: NEMA 3R enclosure with painted galvanized steel offers weather resistance and outdoor suitability. Business impact: Extends service life in harsh environments, reducing enclosure maintenance costs. Application: Outdoor switchgear, damp locations, and semi-enclosed outdoor installations. Feature: Class L fuse provision and fuse protection strategy support predictable trip characteristics. Business impact: Improves selectivity and safety margins, reducing nuisance outages. Application: Industrial feeders requiring standardized fuse classes. Feature: Three-pole, four-wire design supports full three-phase distribution with neutral. Business impact: Enables versatile motor and load configurations, minimizing spare parts inventory. Application: 3P4W distribution to motors and control circuits. Feature: UL Listed certification confirms compliance and reliability. Business impact: Accelerates procurement approvals and meets corporate safety standards. Application: Industrial control panels and distribution centers. Feature: Large footprint (72 in L x 48 in W x 21 in H) and substantial weight (465 lb) ensures sturdy installation for durable service life. Business impact: Reduces movement during fault events and supports robust mounting in switchgear rooms. Application: Centerline mounting in main distribution bays and retrofit projects.
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FAQs
The DH368NRK is a 1200 A, 3P switch designed for 600 V service with neutral. Ensure a fault-rated, level mounting surface with sufficient mechanical support for its 465 lb weight. Verify enclosure access for maintenance, use proper isolation procedures, and align wiring with four-wire configurations to maintain correct neutral paths. Follow UL Listed installation guidelines and the product’s catalog data for wiring diagrams and torque specs.
A 1200 A rating allows the switch to reliably interrupt and protect large motor loads and feeders common in heavy manufacturing. It reduces the risk of nuisance trips under surge conditions, improves selectivity with downstream protection devices, and supports fewer upstream devices, ultimately lowering maintenance and downtime while enhancing system safety.
Yes. The DH368NRK uses a NEMA 3R enclosure constructed from painted galvanized steel, delivering protection against rain, sleet, and falling ice. This makes it suitable for outdoor or semi-exposed installations in many industrial facilities, reducing the need for additional enclosure upgrades and streamlining deployment in harsh environments.
The DH368NRK is UL Listed, ensuring recognized safety and performance standards for industrial control equipment. The enclosure is rated NEMA 3R, indicating suitability for indoor/outdoor use in damp or light-wetted environments. The combination of UL listing and NEMA rating supports regulatory compliance and safer, more reliable operation in demanding facilities.
The fusible-with-neutral design simplifies wiring and fault isolation, reducing commissioning time and maintenance complexity. High current handling minimizes nuisance trips, while the rugged enclosure lowers environmental wear. Combined with UL certification and a long service life, these factors contribute to lower downtime, reduced spare parts inventory, and a faster return on investment in large-scale power distribution.