Eaton DD325NDKW-00V1 Fused Safety Switch - UL Listed
Part Number: DD325NDKW-00V1
Quick Summary
Eaton double door single-throw fused safety switch protects motor circuits in industrial panels. This device is designed to deliver reliable control under heavy loads while keeping maintenance crews safe. It carries UL Listed certification and is housed in a rugged NEMA 12, NEMA 3R enclosure to withstand dust, moisture, and harsh environments. For system integrators and asset managers, this unit offers compatible lug options, neutral inclusion, and scalable HP ratings to match motor requirements up to 350 hp at 480/600 V, while supporting 240 V control circuits. By combining robust protection with straightforward installation and serviceability, it helps reduce downtime and total cost of ownership in heavy-duty applications.
Product Information
Extended Description
DD325NDKW-00V1 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line side, 400 A, NEMA 12/3R, w/ neutral, Three-pole, Four-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
DD325NDKW-00V1
UPC
786679184189
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 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
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
Dust tight
Special features
V indicator line side, w/ window
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - DD325NDKW-00V1
Feature: 400 A amperage rating enables direct protection of high-current motor circuits, reducing the need for multiple protective devices. Business impact: lowers installation complexity and short-circuit risk, improving uptime and safety in heavy machinery lines. Application: suitable for motor control centers and process equipment handling up to 350 hp at 480/600 V. Feature: Three-pole, four-wire configuration with neutral supports balanced 3-phase loads and proper grounding; Business impact: ensures compliant and predictable switching behavior, simplifying wire management and maintenance. Application: ideal for industrial panels serving large motors. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel provides dust-tight and moisture-resistant protection; Business impact: withstands harsh factory floors, reducing corrosion-related downtime. Application: mining, metal fabrication, and chemical processing environments. Feature: Voltage indicator line side with window offers quick status checks during maintenance; Business impact: accelerates fault isolation and reduces troubleshooting time. Application: routine lockout/tagout procedures and panel servicing. Feature: HP rating of 250–350 hp at 480/600 V supports scalable motor protection; Business impact: aligns with mid- to large-motor applications, enabling economical protection without over- or under-sizing. Application: conveyors, pumps, and fans in industrial facilities. Feature: conductor sizing options (up to 300 kcmil or 175 kcmil configurations) provide flexible installation; Business impact: accommodates diverse cables and feeders, reducing procurement complexity. Application: retrofit projects and new builds with varying wiring schemes.
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FAQs
The unit is a three-pole, four-wire fused safety switch designed for 400 A service with a neutral. It accepts diverse conductor sizes, including configurations such as two #1/0, one #1/0, and up to 300 kcmil-#1/0, or alternative layouts like one 175 kcmil-#1/0. This enables flexible panel integration and optimized feed arrangements for motor circuits.
It uses a NEMA 12 and NEMA 3R enclosure in painted galvanized steel, which provides dust-tight and moisture-resistant protection suitable for indoor industrial environments and outdoor-protected locations. This combination supports reliable operation in challenging factory floors and protects sensitive wiring from contaminants.
Yes. The DD325NDKW-00V1 is rated for three-phase motor protection up to 250 or 350 hp at 480/600 V, with a 240 V supply rating for control circuits. This aligns with mid- to large-motor applications in manufacturing and processing facilities, enabling efficient protection without oversizing.
The integrated voltage indicator on the line side with a viewing window provides immediate status visibility without disassembly. This reduces de-energization time during tests, speeds fault isolation, and supports safer, faster lockout/tagout procedures during routine maintenance or fault investigation.
The device carries UL Listed certification, confirming compliance with safety standards. Eaton provides a warranty policy (25-000) that offers one year from installation or eighteen months from shipment, whichever comes first, giving protection against manufacturing defects and facilitating maintenance budgeting.