Eaton DH365FDK Heavy Duty Fusible - UL Listed
Part Number: DH365FDK
Quick Summary
Eaton DH365FDK Heavy Duty Fusible Safety Switch provides reliable power isolation for industrial equipment. When downtime, nuisance tripping, or arc-flash concerns threaten production, a rugged disconnect helps keep lines safe and productive. This unit carries UL Listed certification with NEC 230.62 barrier alignment and a sturdy NEMA 12/3R enclosure, delivering dependable protection in demanding environments. For service entrances and motor circuits, its three-pole, fused design supports high-current applications with simplified maintenance. In practice, operators gain improved uptime, safer shutdowns, and reduced long-term operating costs thanks to robust construction and Eaton’s trusted safety standards.
Product Information
Extended Description
DH365FDK Eaton: Eaton Heavy duty single-throw fused safety switch, 400 A, NEMA 12/3R, Painted galvanized steel, Class H, Three-pole, Three-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0-(2)300 kcmil; or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH365FDK
UPC
782113207315
Product Length/Depth
57 in
Product Height
11 in
Product Width
27 in
Product Weight
153 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
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH365FDK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 400 A amperage rating delivers strong fault isolation, reducing equipment damage and unplanned downtime in heavy-duty motor and drive applications. This translates to higher line reliability and lower replacement costs in manufacturing lines and process equipment. Application: three-pole, fusible without neutral configurations in complex three-phase systems that require precise protection against short circuits. Feature → Business Impact → Application: Class H fuse provision enables selective coordination and fast clearing of faults, minimizing arc flash exposure and enabling safer maintenance windows. Application: high-horsepower motors (250–350 hp at 480/600 V) and large feeders in packaging, metals, and refining facilities benefit from this capability. Feature → Business Impact → Application: NEMA 12/3R enclosure and painted galvanized steel offer durable, dust- and moisture-protected protection for indoor and sheltered outdoor installs, reducing corrosion-related maintenance and replacements. Application: control panels, service entrances, and switchgear rooms where environmental abuse is a concern. Feature → Business Impact → Application: three-wire, three-pole configuration with 600 V rating provides reliable integration with standard industrial power distributions, simplifying installation and reducing wiring errors. Application: turnkey installations for new lines or retrofits in manufacturing and packaging lines. Feature → Business Impact → Application: compatibility with large Cu/Al feeder sizes ((2) 300 kcmil Cu/Al or (1) 750 kcmil Cu/Al) supports scalable upgrades and service-entrance readiness, improving future-proofing and reducing future rework. Application: utility-driven service entrances and large-motor facilities. Feature → Business Impact → Application: UL-listed certification, NEC barrier compliance, and documented warranty minimize compliance risk and warranty disputes, boosting procurement confidence. Application: OEMs and integrators pursuing fast regulatory alignment and robust post-installation support.
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FAQs
The DH365FDK is a three-pole, three-wire fusible safety switch rated for 600 V and compatible with large feeders (up to 2 Ă— 300 kcmil Cu/Al or 1 Ă— 750 kcmil Cu/Al). It uses Class H fuses and is housed in a NEMA 12/3R enclosure, suitable for indoor or sheltered outdoor environments when installed with appropriate mounting and wiring practices.
Its fusible design with a neutral/ground lug kit option per catalog notes supports service entrance usage. The enclosure’s NEMA ratings and NEC barrier compliance enhance safety and regulatory alignment, while UL Listing confirms product reliability in utility and building distribution scenarios.
With max HP ratings of 250/350 hp at 480/600 V, the DH365FDK is well-suited for demanding motor control in conveyors, pumps, fans, and metalworking equipment. The three-pole, fused design ensures strong fault isolation for high-inertia loads and frequent starting conditions.
The DH365FDK is UL Listed and complies with NEC barrier requirements for secure installations. Its NEMA 12/3R enclosure supports indoor and outdoor protection, and its 600 V rating aligns with standard industrial electrical distribution practices, reducing regulatory risk and streamlining approvals.
By delivering robust protection, minimizing downtime, and providing durable construction (painted galvanized steel enclosure and Class H fuses), the DH365FDK lowers maintenance costs and replacement needs. Its service-entrance suitability and wiring compatibility also reduce installation time and future expansion expenses.