Eaton DD367FDKW-00LO Fused Safety Switch - UL Listed
Part Number: DD367FDKW-00LO
Quick Summary
Eaton double door single-throw fused safety switch isolates power on high‑demand production lines. This design addresses downtime and maintenance challenges by delivering reliable fault isolation, clear visibility, and easy field wiring. With UL Listed certification and a rugged NEMA 12/3R enclosure, it delivers durable protection in harsh environments. The unit’s heavy‑duty construction, Class L fuse provisions, and 600 V rating support large motor loads, while a ready‑to‑install footprint aligns with modern plant safety standards. This combination enables safer operation, reduced maintenance costs, and improved lifecycle value for industrial facilities seeking resilient electrical protection and streamlined installation of high‑current feeders and motor circuits.
Product Information
Extended Description
DD367FDKW-00LO Eaton: Eaton Double door single-throw fused safety switch, 800 A, NEMA 12/3R, Painted galvanized steel, Class L, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 500, 500 hp (3PH @480, 600 V), (4) 1/0 - (4) 750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD367FDKW-00LO
UPC
786689211929
Product Length/Depth
82.25 in
Product Height
17.125 in
Product Width
25.25 in
Product Weight
300 lb
Certifications
UL Listed
Catalog Notes
Double Door Isolation Switch
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty double door safety switch
Amperage Rating
800A
Fuse class provision
Class L
HP rating - max
500, 500 hp (3PH @480, 600 V)
NEMA rating
NEMA 12
Voltage rating
600 V
Product Category
Dust tight
Special features
w/ window, Lock-On Provision
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Eaton Specification Sheet - DD367FDKW-00LO
Feature: 800 A amperage rating with three‑pole configuration. Business Impact: Supports heavy motor starting and high‑load applications with reliable protection. Application: Large pumps, fans, and compressors in continuous process lines. This translates to reduced fuse blowing and safer disconnects during service. Feature: NEMA 12/3R enclosure in painted galvanized steel. Business Impact: Enclosure offers dust tight and weather-resistant protection while resisting corrosion in demanding environments. Application: Indoor manufacturing floors and moderately exposed outdoor areas. This improves uptime and reduces maintenance cycles. Feature: Fusible without neutral with Class L fuse. Business Impact: Provides selective protection and simpler coordination for feeders, lowering risk of nuisance outages. Application: Process lines where neutral is not required for switch operation. Feature: Glass window and lock‑on provision. Business Impact: Enables visual verification of switch status and secure maintenance lockout, enhancing operator safety and compliance. Application: Routine maintenance and energy audits on large electrical distribution panels. Feature: 600 V rating and 500 hp max (3PH @480 V). Business Impact: Enables high‑power control for mid‑to‑large motor systems, simplifying replacement with compatible components. Application: Industrial plants requiring robust motor control with minimal compromise on safety. Feature: Three‑pole, three‑wire design. Business Impact: Ensures consistent three‑phase isolation and straightforward wiring for feed to MCCs. Application: Motor control centers and distribution panels where reliable phase separation matters.
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FAQs
This unit uses a three‑pole, three‑wire configuration and is designed for a three‑phase 600 V supply. Mount in a suitable frame, connect the three phase lines to the switch’s poles with the fusible links configured as Class L, and verify the door interlock and lock‑out provisions before servicing. The enclosure is NEMA 12/3R compatible and built from painted galvanized steel for durability.
Key specs include an 800 A amperage rating, 600 V maximum voltage, three‑pole construction, fusible without neutral, and a 500 hp maximum for 3‑phase at 480 V. It is UL Listed and designed for NEMA 12/3R installations, making it suitable for heavy machinery feeds and power distribution panels in industrial facilities.
Yes. The NEMA 12 enclosure provides dust‑tight protection, and the 3R rating supports outdoor or semi‑outdoor environments where exposure to elements is a concern. The window and lock‑on provisions improve maintenance safety and fault verification, helping maintain compliance and minimize unplanned downtime in harsh factories.
The DD367FDKW-00LO is UL Listed and presented in a NEMA 12, NEMA 3R enclosure. The Class L fuse provision and heavy‑duty galvanized steel construction further reinforce compliance with industrial safety standards while delivering long service life in demanding applications.
Maintenance is streamlined by a durable galvanized enclosure, a clear window for status checks, and a lock‑on provision for safe servicing. The robust 800 A rating and 600 V capability reduce downstream component replacements, while UL Listing supports regulatory compliance, contributing to lower total cost of ownership and higher plant uptime over the equipment lifecycle.