Eaton DD366NDKW-00V3 Fused Safety Switch UL Listed

Part Number: DD366NDKW-00V3
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Manufacturer
Eaton
Part number
DD366NDKW-00V3

Quick Summary

The Eaton DD366NDKW-00V3 is a fused double-door safety switch designed for heavy-duty protection in electrical panels. Plant teams seek reliable prevention of accidental energization and straightforward maintenance, and this unit delivers with a visible status indicator and a precision-neutral fuse path. UL Listed certification underpins safe, compliant operation, while the NEMA 12/3R enclosure ratings protect against dust, moisture, and other environmental challenges. With a 600 A, 600 V rating and a robust three-pole, four-wire configuration, it supports demanding motor control and automation tasks. This combination translates into reduced downtime, easier serviceability, and stronger overall panel reliability for industrial automation and equipment protection.

Product Information

Extended Description

DD366NDKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 600 A, NEMA 12/3R, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 400, 500 hp (3PH @480/600 V), (1)#2(1)#2-(1)600, and (1)750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD366NDKW-00V3
UPC
786679184783
Product Length/Depth
19.31 in
Product Height
25.32 in
Product Width
77.96 in
Product Weight
265 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
600A
Fuse class provision
Class H
HP rating - max
400, 500 hp (3PH @480/600 V)
Voltage rating
600 V
Product Category
Dust tight
Special features
V indicator line and load side, w/ window
Feature: Visible voltage indication on the line and load side with a window. Benefits: Operators can quickly confirm energized status without opening the enclosure, reducing misenergization events and improving maintenance safety. Application: Control panels in packaging lines and conveyor systems where rapid status checks are routine. Feature: 600 A amperage rating and 600 V voltage rating. Benefits: Handles large motor starts and high-current loads with a safe, dedicated fusible path, improving drive reliability and protecting upstream breakers. Application: Heavy-duty machinery, pumps, and fans in manufacturing facilities. Feature: Fusible with neutral design and three-pole, four-wire configuration. Benefits: Enables proper neutral return and stable control circuits, simplifying wiring and interlock schemes while meeting safety interlock requirements. Application: Large automation cabinets and process equipment. Feature: NEMA 12/3R enclosure with painted galvanized steel. Benefits: Dust-tight and weather-resistant protection in indoor or semi-exposed environments, extending service life and reducing maintenance costs. Application: Industrial plants, outdoor service bays, and wash-down zones. Feature: UL Listed certification and robust enclosure construction. Benefits: Compliance assurance for plant safety programs and electrical audits, accelerating project approvals and installation readiness. Application: Corporate facilities, OEM panel builds, and retrofit projects. Feature: Compatibility with heavy-duty wiring and large conductor sizes per field wiring practices. Benefits: Flexibility to connect substantial feeders and motors with minimized splice points, improving reliability and reducing install time. Application: Panel feeders for motors and drives in automated lines.

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FAQs

Yes. The DD366NDKW-00V3 is a three-pole, four-wire fused safety switch rated at 600 A and 600 V, with fusible neutral. It uses a NEMA 12/3R enclosure and includes a voltage indicator window on the line and load sides, making it suitable for panel installations in demanding automation environments.
Key specs include 600 A amperage, 600 V voltage, three-pole, four-wire configuration, fusible with neutral, and an HP rating of up to 400–500 hp for motor loads at 3-phase 480/600 V. Enclosure is NEMA 12/3R, with UL Listed certification. This combination supports high-demand drives and reliable protective interlock function.
Ideal for heavy-duty industrial control panels, packaging lines, conveyors, pumps, and other motor-driven equipment. The unit’s high current and voltage ratings, along with the V indicator and window features, support safe operation in manufacturing, process industries, and OEM panel builds requiring robust protection and easy maintenance.
The DD366NDKW-00V3 carries UL Listed certification and is housed in a NEMA 12, NEMA 3R painted galvanized steel enclosure. These ratings provide dust-tight protection and resistance to outdoor or semi-exposed environments, aligning with industry safety and reliability standards.
Warranty is defined by Eaton policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This reflects standard coverage for safety devices and supports project continuity, field service, and spare-part planning.