Eaton DD327FDKW-00V3 Fused Safety Switch - UL Listed
Part Number: DD327FDKW-00V3
Quick Summary
The Eaton DD327FDKW-00V3 fused safety switch provides reliable isolation for heavy-duty electrical circuits in industrial control panels. In modern plants, unread indicators and unclear status can trigger unexpected downtime and costly shutdowns. This unit carries UL Listed safety certification and comes in a NEMA 12/3R enclosure, with Class L fuse, supporting rugged environments and compliance. With 800 A capacity, 240 V rating, and 500 hp max on three-phase motors, it integrates seamlessly into electrical protection and circuit control strategies for critical lines. For project teams, the combination of a robust enclosure, clear voltage indicators, and Eaton's warranty translates into reduced downtime and lower life-cycle costs, aligning with plant safety programs and MRO workflows.
Product Information
Extended Description
DD327FDKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 800 A, NEMA 12/3R, Class L, w/out neutral, Three-pole, Three-wire, 240 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
DD327FDKW-00V3
UPC
786679173688
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
Catalog Notes
Double Door Isolation Switch w/ Line&Load Voltage Indicators
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)
Voltage rating
240V
Product Category
Dust tight
Special features
V indicator line and load side, w/ window
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - DD327FDKW-00V3
Rugged enclosure and environmental protection: The DD327FDKW-00V3 uses a painted galvanized steel enclosure rated for NEMA 12 and NEMA 3R environments. This protection reduces dust ingress and moisture exposure, helping extend switch life and minimize unplanned maintenance. It is well suited for manufacturing floors, packaging lines, and processing equipment where reliability matters. High current capacity and fuse class: With an 800 A rating and Class L fuse provision, the switch safely isolates large motor loads up to 500 hp on 3-phase systems. The design supports selective coordination and reduces nuisance fuse operations, delivering measurable downtime reductions. It's ideal for critical plant equipment and high-demand conveyors. Clear status indicators: Voltage indicator line and load side with a viewing window enable quick, accurate status checks during startup, maintenance, or changeovers. This visibility shortens troubleshooting cycles, reduces guesswork, and increases safe work practices. Application: switchgear cabinets and motor control centers. Three-pole, three-wire design: The three-pole arrangement ensures complete disconnection and compliance with common industrial wiring schemes. It simplifies wiring and improves safety during maintenance windows. Use in new builds or retrofits where code compliance and predictable breaker coordination matter. Certifications, warranty, and support: UL Listed certification provides safety compliance, while Eaton's warranty of one year from installation or 18 months from shipment offers reassurance. Long-term cost of ownership is reduced through fewer component failures and simplified parts availability. Installation compatibility and footprint: Enclosure dimensions (86.73 in length, 22.16 in height, 26.57 in width) and solid galvanised steel construction support straightforward panel mounting and service access. The unit supports switchgear integration and panel retrofit projects while maintaining dust-tight performance.
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FAQs
Plan for a three-pole, three-wire integration within a NEMA 12/3R enclosure. Ensure panel cutouts and mounting clearances accommodate the 86.73 in length, 26.57 in width, and 22.16 in height footprint. Verify line and load connections, and use the built-in voltage indicators to simplify start-up sequencing and fault diagnosis.
Yes. It is rated for up to 500 hp on 3PH at 480/600 V and 800 A, with Class L fuse protection. This enables safe isolation for large motor loads while enabling selective coordination and reducing nuisance fuse operations during startup and fault events.
The unit is UL Listed, with a NEMA 12/3R enclosure rating and a fusible configuration designed for non-neutral operation. These specifications support safety compliance, environmental protection, and reliable performance in dusty, moisture-prone industrial settings.
Voltage indicators on the line and load sides, visible through a window, allow quick confirmation of circuit status without opening the enclosure. This reduces troubleshooting time, speeds maintenance windows, and lowers the risk of accidental energization during servicing.
Eaton provides a warranty of one year from installation or 18 months from shipment. The robust enclosure, long-life components, and availability of spare parts contribute to lower maintenance costs and fewer unplanned outages, delivering favorable total cost of ownership for high-demand industrial applications.