Eaton DD363FDKW-00LO Double door single-throw fused safety switch - UL Listed
Part Number: DD363FDKW-00LO
Quick Summary
Eaton DD363FDKW-00LO is a fused safety switch for industrial power control. It helps prevent unexpected downtime by providing a reliable isolation point in harsh environments. UL Listed certification and NEMA 12/3R enclosure ratings bolster safety compliance in manufacturing and processing plants. Designed for a 600 V system with 100 A rating and fusible Class H protection, it supports efficient motor control and reduced maintenance downtime. Because the switch is designed with a three-pole configuration and #14-1/0 AWG wiring capability, it accommodates standard motor leads and simplifies field installation. Optional features such as a window and lock-on provision aid quick status checks and secure maintenance workflows.
Product Information
Extended Description
DD363FDKW-00LO Eaton: Eaton Double door single-throw fused safety switch, 100 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-1/0
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD363FDKW-00LO
UPC
786689211967
Product Length/Depth
39.19 in
Product Height
10.21 in
Product Width
12.33 in
Product Weight
50 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
Wire size
#14-1/0 AWG
Amperage Rating
100A
Fuse class provision
Class H
HP rating - max
30, 40/ 60, 75 hp (1/3PH @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 - DD363FDKW-00LO
Feature: 100 A amperage rating and three-pole, three-wire construction provide reliable control of three-phase motors up to 600 V. Impact: This arrangement minimizes fault currents, supports safe isolation, and reduces arc flash exposure during switching. Application: Ideal for conveyors, presses, and mixers operating at 480–600 V with motor HP ranges of 30–75 hp. Feature: Fusible without neutral and Class H fuse provision enable selective coordination and safe, code-compliant disconnection. Impact: Protects feeders and downstream devices while minimizing nuisance trips, lowering maintenance costs and improving plant reliability. Application: Suitable for motor feeders in metalworking, plastics, and packaging lines where strict shutoff sequencing is required. Feature: NEMA 12 and NEMA 3R enclosure, painted galvanized steel, provide dust-tight and moisture-resistant protection combined with rugged mounting. Impact: Extends service life in dirty, humid, or washing environments, reducing corrosion-related outages and unscheduled downtime. Application: Indoor production floors and outdoor covered areas in chemical or food processing facilities. Feature: Wire size capability #14-1/0 AWG and a three-wire, three-pole layout simplify field wiring and terminations. Impact: Streamlines installation, reduces field splicing, and accelerates commissioning. Application: Suitable for motor control circuits in panel boards and switchgear across manufacturing facilities. Feature: Window option and lock-on provision enable quick status checks and secure servicing. Impact: Improves maintenance safety, prevents accidental re-energization, and accelerates fault diagnosis. Application: Maintenance workflows in OEM lines, service shops, and retrofit projects. Feature: UL Listed certification and 600 V rating with HP options up to 75 hp provide proven safety and performance for industrial environments. Impact: Eases procurement, audits, and compliance across regulated facilities; supports consistent performance in diverse line configurations. Application: Broadly suitable for machine tools, conveyors, pumps, and process equipment in manufacturing plants.
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FAQs
This unit is a three-pole, three-wire switch rated at 100 A and 600 V, making it suitable for three-phase motors up to 75 hp at 480–600 V. It accepts #14-1/0 AWG conductors, enabling straightforward field wiring and reliable conductor terminations across common industrial motor applications.
The switch uses a combination of NEMA 12 and NEMA 3R enclosures, offering dust-tight and moisture-resistant protection. Painted galvanized steel provides corrosion resistance, making it appropriate for indoor production areas and outdoor covered spaces where environmental exposure is a concern.
Yes, the NEMA 3R rating supports outdoor installations in covered areas, while NEMA 12 protection covers dust and grime commonly found on factory floors. For fully exposed outdoor wash-down zones you may need additional protective measures or equipment designed for harsher washes.
The DD363FDKW-00LO is UL Listed, confirming adherence to recognized electrical safety standards. This certification simplifies supplier qualification, commissioning, and regulatory audits, reducing procurement risk and helping ensure consistent safety performance across multiple production lines.
The combination of reliable 100 A, 600 V protection, window and lock-on features, and robust enclosure ratings reduces unplanned downtime, accelerates maintenance workflows, and simplifies compliance tracking. Over time, this translates to lower labor costs, fewer interruptions, and a more predictable maintenance schedule for motor-driven equipment.