Eaton DD325FWKW Fused Safety Switch - NEMA 4X, UL Listed
Part Number: DD325FWKW
Quick Summary
Eaton DD325FWKW is a heavy-duty fused safety switch designed for main power control in industrial facilities. When downtime and wiring complexity threaten production, this switch offers a rugged, code-compliant solution. UL Listed safety certification and a NEMA 4X stainless enclosure, with Class H fuses, support outdoor and washdown applications. This combination underpins reliable protection, reduces maintenance, and complements industrial control architectures with Eaton compatibility. Its 400 A rating and 240 V operation align with common plant distribution schemes, while its fused, three-pole design simplifies wiring and reduces fault exposure. You benefit from a durable enclosure and straightforward serviceability in challenging environments.
Product Information
Extended Description
DD325FWKW Eaton: Eaton Double door single-throw fused safety switch, 400 A, NEMA 4X, Fusible without neutral, Three-pole, Three-wire, 240 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD325FWKW
UPC
786679184097
Product Length/Depth
16.41 in
Product Height
24.32 in
Product Width
72.46 in
Product Weight
219 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 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty double door safety switch
Amperage Rating
400A
Fuse class provision
Class H
HP rating - max
250, 350 hp (3PH @480/600 V)
Voltage rating
240V
Product Category
Watertight
Special features
w/ window
ARMS Enclosed Circuit Breaker
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Eaton Specification Sheet - DD325FWKW
Feature: 400 A amperage rating with three-pole, three-wire configuration. Business Impact: Provides robust main power protection for demanding motor loads, enabling reliable startup and reduced nuisance trips, which translates to higher line uptime and lower maintenance costs. Application: Suitable for plant feeders and large induction motors in manufacturing lines. Long-tail keywords integrated: fused safety switch, industrial protection, motor control, three-pole switch. Feature: NEMA 4X enclosure in 304 stainless steel. Business Impact: Delivers superior corrosion resistance and washdown durability, reducing enclosure maintenance and extending service life in harsh environments. Application: Outdoor installations, chemical plants, and food & beverage facilities requiring watertight protection. Long-tail keywords integrated: corrosion-resistant enclosure, outdoor rated switch, washdown-ready equipment. Feature: Fusible without neutral with Class H fuse provision. Business Impact: Enables selective coordination and high fault-current protection without neutral conductors, improving safety and simplifying maintenance while reducing downtime for fuse changes. Application: Large-capacity feeders and motors up to 250–350 hp (3PH @480/600 V). Long-tail keywords integrated: Class H fuses, selective coordination, motor protection. Feature: Large, fixed enclosure footprint with substantial conductor capacity. Business Impact: Supports heavy conductor terminations like (2) #1/0 and up to 300 kcmil-#1/0 wiring, reducing field termination errors and facilitating quicker installation. Application: Industrial control panels and service entrances in tight or retrofit spaces. Long-tail keywords integrated: large conductor terminations, 300 kcmil, installation efficiency. Feature: Special features and certification alignment. Business Impact: The “w/ window” option provides status visibility, and UL Listing confirms compliance with electrical safety standards, helping with regulatory approvals and safer maintenance routines. Application: Facilities requiring visual status checks and formal safety documentation. Long-tail keywords integrated: window feature, UL Listed, regulatory compliance. Footer note: The DD325FWKW is designed for compatibility with Eaton’s broader protection strategy, ensuring easy upgrades and consistent spare parts availability across industrial sites.
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FAQs
The DD325FWKW is a three-pole, three-wire, fusible switch rated for 400 A at 240 V. It uses a NEMA 4X 304 stainless steel enclosure with optional window for status viewing. Plan for large feeder conductors (up to 300 kcmil-#1/0 or equivalent) and ensure Class H fuses are installed. Mounting should consider adequate clearance for access and cooling.
This unit provides 400 A amperage rating with a max HP of 250/350 hp for 3-phase operation at 480/600 V and a 240 V nominal voltage. It is three-pole, fusible without neutral, and UL Listed, ensuring compliance with electrical safety standards while supporting reliable starter and protection duties for industrial motors.
Ideal for main power distribution in manufacturing plants, process facilities, and outdoor installations requiring washdown protection. Its NEMA 4X, 304 stainless enclosure makes it suitable for corrosive or wet environments, while the window option aids quick status checks without opening the enclosure.
The DD325FWKW is UL Listed and features a NEMA 4X enclosure, supporting safety and environmental requirements for harsh industrial settings. These certifications help with regulatory compliance, project approvals, and consistent maintenance procedures across facilities using Eaton protection solutions.
The rugged 304 stainless NEMA 4X enclosure reduces corrosion-related downtime and maintenance costs, while Class H fuse provisions simplify replacement and coordination. The robust rating and compatibility with large feeders minimize spares needed, contributing to a lower total cost of ownership and faster uptime in demanding environments.