Eaton DH367NDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH367NDK
Quick Summary
Eaton DH367NDK heavy duty fusible safety switch isolates power for demanding industrial control applications. This unit helps prevent unplanned downtime by delivering quick, visible disconnection and robust protection under load. UL Listed with a NEMA 12/3R enclosure and Class L fuse provisions, it supports 600 V systems and up to 500 hp, delivering reliability and long service life. Designed for ease of installation and maintenance, the DH367NDK aligns with modern plant safety standards while maximizing uptime and overall equipment effectiveness. Its rugged galvanized steel enclosure and fusible-with-neutral configuration provide a practical balance of protection, accessibility, and performance for industrial environments.
Product Information
Extended Description
DH367NDK Eaton: Eaton Enhanced visible blade single-throw safety switch, 800 A, NEMA 12/3R, Painted galvanized steel, Class L, Fusible with 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
DH367NDK
UPC
786685234939
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.
Certifications
UL Listed
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 → Business Impact → Application: The DH367NDK delivers an 800 A amperage rating, enabling safe isolation for large motor loads and high-current circuits, reducing risk during maintenance and service outages. This translates to lower downtime and improved uptime metrics on critical lines such as presses and conveyors in manufacturing facilities. Feature → Application → The three-pole, four-wire design with fusible protection and neutral support enables load-side control circuits and protective coordination for sophisticated motor control schemes, improving startup reliability and reducing nuisance tripping during normal transients. Feature → Business Impact → The Class L fuse provision offers precise discrimination and protection, mitigating arc flash exposure and shortening outage durations, which is essential for safety compliance and maintenance planning in heavy industries. Feature → Application → The NEMA 12, NEMA 3R enclosure guards the switch from dust, moisture, and incidental exposure, making it suitable for indoor industrial rooms and exterior-rated installations where space is constrained. Feature → Business Impact → Enclosure material and UL Listing support regulatory compliance and streamlined procurement across plants, reducing vendor fragmentation and enabling faster project execution. Feature → Application → With a 600 V rating and a 500 hp max capability, this safety switch is well-suited for large pumps, fans, and line-start motors, delivering dependable protection in continuous process environments while minimizing energy waste.
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FAQs
The DH367NDK is a three-pole, four-wire safety switch designed for 600 V systems. Plan for dedicated space to accommodate its 14.25 in depth, 71.75 in height, and 25.38 in width, with a galvanized steel NEMA 12/3R enclosure. Ensure wiring takes advantage of neutral with Class L fusible protection and UL Listed installation practices for safe operation.
This model supports up to 800 A and up to 500 hp for three-phase motors at 480/600 V. Fusible with neutral, Class L protection provides selective short-circuit interruption, reducing arc energy and protecting downstream equipment. The result is safer maintenance and minimized motor damage during fault conditions.
Ideal for heavy industrial environments such as manufacturing lines, packaging, conveyors, pumps, and large fans. Its 800 A rating, 600 V capability, NEMA 12/3R enclosure, and UL Listing make it suitable for indoor plant rooms and exterior installations where robust protection and reliable isolation are required.
The DH367NDK is UL Listed and features a NEMA 12/3R enclosure, certifying it for indoor and outdoor-rated protection against dust and moisture in appropriate conditions. This simplifies regulatory audits, aligns with plant safety standards, and supports procurement through recognized compliance, reducing risk during installation.
Maintenance focuses on fuse replacement after protective operation and periodic inspection of enclosure integrity. With 1 year warranty from installation or 18 months from shipment, OEM support helps minimize downtime. The safety switch’s durability, reduced downtime, and protective coordination contribute to a favorable total cost of ownership in heavy-duty lines.