Eaton DH325FDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH325FDK
Quick Summary
The Eaton DH325FDK heavy duty fusible safety switch delivers safe, isolated power control for industrial distribution panels. Uptime is at risk when service entrances and safety interlocks are undersized, poorly wired, or lack proper enclosure protection. This model is UL Listed and features a NEMA 12/3R enclosure, with Class H fuses and three-pole, 240 V operation for demanding environments. Designed for service entrances and distribution panels, it supports up to 400 A and up to 50 hp three-phase at standard voltages, with adaptable lug options. Its rugged painted galvanized steel enclosure and factory-rated warranty help reduce maintenance costs and ensure regulatory compliance.
Product Information
Extended Description
DH325FDK Eaton: Eaton Heavy duty single-throw fused safety switch, 400 A, NEMA 12/3R, Painted galvanized steel, Class H, Three-pole, Three-wire, 240 V, Max Hp: 50, 125/ 50 hp (3PH @Std, TD/250 Vdc), (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
DH325FDK
UPC
782113207148
Product Length/Depth
57 in
Product Height
11 in
Product Width
27 in
Product Weight
123 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
50, 125/ 50 hp (3PH @Std, TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
The DH325FDK delivers high-performance protection with a 400 A amperage rating and a three-pole configuration, enabling precise isolation of feeders and motors. This design reduces arc-flash exposure, shortens downtime after faults, and simplifies coordination studies for safer, more reliable operations on demanding production lines. The NEMA 12/3R-rated enclosure, crafted from painted galvanized steel, guards sensitive components from dust, moisture, and incidental impacts, extending service life and lowering field service costs by reducing ingress-related failures. The Class H fuse provision and fusible-without-neutral configuration streamline wiring, improve stock management, and support straightforward maintenance without compromising protection. Large-format dimensions and robust construction facilitate installation in retrofit projects, while compatibility with service-entrance lug kits broadens integration with existing power-distribution schemes. Finally, UL Listed certification and NEC barrier compliance provide regulatory confidence, enabling faster validation and lower risk across facilities.
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FAQs
The DH325FDK provides a 400 A rating with a three-pole design and a NEMA 12/3R enclosure, UL Listed for electrical safety, and the option to install a neutral or ground lug kit for service entrances. This combination enables safe isolation, straightforward wiring, and compliant integration with common service-distribution schemes.
Installers should select a neutral or ground lug kit as needed for service entrance use, then connect the three conductors across the three poles at 240 V. The unit is sized for 57 in depth, 27 in width, and 11 in height, with a weight of about 123 lb, so plan for suitable handling equipment and mounting clearances during installation.
The DH325FDK is UL Listed, offering verified electrical safety. It also features a NEMA 12/3R enclosure rating for environmental protection and NEC 230.62 (C) compliant barrier design, supporting regulatory compliance in typical electrical distribution applications.
The unit measures 57 inches in depth, 11 inches in height, and 27 inches in width, with a product weight of 123 pounds. These dimensions influence layout, mounting, and handling requirements in equipment rooms or outdoors, and may necessitate forklift access for installation and service.
The combination of UL Listed safety, a rugged NEMA 12/3R enclosure, Class H fuse provision, and a 400 A rating supports reliable fault isolation, reduced downtime, and lower maintenance costs. Its service-entrance compatibility and durable construction translate to faster commissioning and a lower total cost of ownership in industrial facilities.