Eaton DD365NDKW-00V1 Fused Safety Switch - UL Listed
Part Number: DD365NDKW-00V1
Quick Summary
Eaton double door single-throw fused safety switch provides reliable power isolation for three-phase systems in industrial control panels. This rugged device handles up to 400 A and 600 V, making it suitable for motor drives and heavy equipment in harsh environments. For engineers balancing uptime with safety, the DD365NDKW-00V1 delivers a compact footprint in a NEMA 12/3R enclosure with a neutral, reducing panel space while preserving maintainability. It is UL Listed, reinforcing compliance with safety programs and electrical codes. The unit also features a voltage indicator line side with a window, improving operator awareness during maintenance. In practice, this protection switch supports efficient, code-compliant protection for large motors and critical loads, amplifying reliability and total cost of ownership.
Product Information
Extended Description
DD365NDKW-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, 600 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
DD365NDKW-00V1
UPC
786679184639
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
600 V
Product Category
Dust tight
Special features
V indicator line side, w/ window
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DD365NDKW-00V1
Feature: 400 A amperage rating → Business Impact: Enables robust motor protection and reduces nuisance fuse replacements, improving uptime in high-demand applications. Application: Ideal for large motors and heavy conveyors in industrial facilities. Feature: 600 V three-pole, four-wire design → Business Impact: Delivers reliable three-phase power isolation with balanced neutral, supporting safe startup and shutdown sequences. Application: Suitable for 3PH motor control centers and panelboards in manufacturing lines. Feature: NEMA 12, NEMA 3R dust-tight enclosure → Business Impact: Withstands exposure to dust, moisture, and temperature swings, reducing maintenance cycles. Application: Outdoor-rated or harsh factory environments where enclosure integrity matters. Feature: Fusible with neutral and Class H fuse provision → Business Impact: Ensures precise fault clearance and minimizes arc flash risk, protecting drives and wiring. Application: Motor control and power distribution for high-horsepower equipment. Feature: Voltage indicator line side with window → Business Impact: Quick status verification during maintenance, lowering labor time and error risk. Application: Field service and panel integrity checks. Feature: Large physical footprint with clearly defined terminals → Business Impact: Simplifies field wiring and future expansion, reducing commissioning time. Application: New installs and upgrades in expanding facilities. Feature: UL Listed certification → Business Impact: Supports regulatory compliance and procurement governance, mitigating audit findings. Application: Electrical safety programs and code compliance across industries.
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FAQs
This unit is a three-pole, four-wire design rated at 400 A and 600 V, suitable for NEMA 12/3R environments. Plan for a compatible panel cutout, ensure neutral wiring is properly landed, and verify the voltage indicator window is accessible for routine checks. The enclosure size supports field wiring and future expansion while maintaining compliance with UL Listed requirements.
The switch provides a 400 A amperage rating and a 600 V maximum voltage rating, with fusible configuration including a neutral. It supports Class H fuses, enabling precise fault protection for large motors up to 350 hp on 480/600 V systems. This combination delivers dependable isolation and protects downstream drives and wiring from short-circuit events.
Ideal for large, three-phase motor applications such as conveyors, pump assemblies, and processing lines in industrial facilities. Its 400 A capacity paired with 600 V rating supports high-horsepower motors up to 350 hp and provides a robust disconnect solution within demanding control panels or MCCs, especially where space is managed within a NEMA 12/3R enclosure.
The DD365NDKW-00V1 is UL Listed and features a NEMA 12, NEMA 3R enclosure. These ratings confirm suitability for dust-tight indoor environments and weather-protected outdoor or semi-outdoor locations, aligning with common electrical safety standards and enabling code-compliant installation in diverse facilities.
With durable construction, high current rating, and reliable fault protection, maintenance cycles are reduced and downtime is minimized. The integrated voltage indicator aids quick status checks, while UL Listing and Class H fuses support regulatory compliance, contributing to lower total cost of ownership through fewer unplanned outages and simplified service.