Eaton DD367NDKW Fused Safety Switch - 800A UL Listed
Part Number: DD367NDKW
Quick Summary
The Eaton DD367NDKW fused safety switch delivers reliable overcurrent protection for industrial control panels in heavy machinery applications. This design targets downtime caused by slow fault interruption and the risk of unsafe, hard-to-service switches on demanding production floors. UL Listed certification, along with a NEMA 12/3R enclosure and Class L fuse provisions, supports safety compliance, environmental resilience, and selective coordination. By combining rugged construction with neutral-fused protection, it enables safer panel integration and lower lifecycle costs for industrial buyers. Engineers appreciate extended horsepower compatibility and straightforward installation in both new builds and retrofits. In short, the DD367NDKW delivers dependable protection, predictable maintenance, and value-driven performance for mission-critical equipment.
Product Information
Extended Description
DD367NDKW Eaton: Eaton Double door single-throw fused safety switch, 800 A, NEMA 12/3R, Painted galvanized steel, Class L, Fusible with neutral, Three-pole, Four-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
DD367NDKW
UPC
786679174562
Product Length/Depth
86.73 in
Product Height
22.16 in
Product Width
26.57 in
Product Weight
300 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
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
ARMS Enclosed Circuit Breaker
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Eaton Specification Sheet - DD367NDKW
Feature: An 800 A amperage rating and 600 V capability enable protection for large motor feeds and high-horsepower drives up to 500 hp at 480/600 V. Impact: This delivers fast, reliable fault interruption, reducing motor damage and minimizing unplanned downtime. Application: Suitable for heavy machinery lines in manufacturing, cement, and steel processing. Feature: Class L fuse provision and fusible with neutral allow selective coordination and a safe neutral path for multi-wire circuits. Impact: Improves selectivity and reduces arc flash exposure during maintenance. Application: Critical in three-phase, four-wire motor control centers and switchgear. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel provides dust, moisture, and corrosion resistance. Impact: Extends service life in harsh factory floors and outdoor-rated areas. Application: Ideal for dusty production environments and wash-down zones. Feature: Enclosure dimensions and weight (86.73 in depth, 22.16 in height, 26.57 in width; 300 lb) support robust, durable installations. Impact: Requires proper spacing and secure mounting but ensures wide access for maintenance and wiring. Application: Suitable for standalone or integrated power-distribution configurations. Feature: UL Listed certification and warranty terms (one year from installation or 18 months from shipment) reinforce compliance and post-sale support. Impact: Reduces risk and total cost of ownership for regulated industries. Application: Procurement and facility maintenance planning for industrial sites.
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FAQs
Plan for the panel footprint and mounting clearances to accommodate the 86.73 in depth and 26.57 in width while allowing 300 lb handling. Ensure four-wire, three-pole wiring with a neutral path is routed cleanly. Verify enclosure protection meets the environment (NEMA 12/3R) and confirm proper access for maintenance and fuse replacement.
Class L fuses provide fast-acting protection with a higher interrupting rating and superior coordination for multi-load circuits. The fusible with neutral configuration ensures a safe return path for unbalanced loads, reducing arc flash risk during maintenance and helping maintain selective coordination across the motor feeder and control circuits.
Yes. The device employs a NEMA 12/3R-rated enclosure and painted galvanized steel construction, delivering dust and moisture resistance suitable for harsh factory floors and outdoor-rated zones. Its 800 A rating and 500 hp guidance at 480/600 V make it appropriate for large motor drives in industrial facilities.
The DD367NDKW carries UL Listed certification, supporting electrical safety compliance for industrial applications. It includes Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first, helping reduce risk and provide post-sale support during the equipment lifecycle.
The switch reduces unplanned downtime through reliable fault interruption for high-horsepower motors, enabling longer mean time between failures. Its durable enclosure, neutral-fused protection, and robust warranty lower maintenance costs and simplify panel maintenance, delivering a predictable total cost of ownership for long-term manufacturing deployments.