Eaton DD327FDKW-00LO Fused Safety Switch - UL Listed
Part Number: DD327FDKW-00LO
Quick Summary
The Eaton DD327FDKW-00LO is a double-door fused safety switch for industrial protection. When space, reliability, and fast isolation matter, choosing the right switch reduces downtime and risk. UL Listed certification and robust enclosure options (NEMA 12/3R) support safe operation in dusty or damp industrial environments. With 800 A capacity and up to 500 HP at 480 V, it scales protection for large motors without complicating maintenance. Its windowed design and Lock-On Provision support safe servicing and compliance with lockout/tagout procedures. This combination of features also simplifies sourcing and stocking within Eaton-compatible electrical assemblies. Engineers can rely on consistent performance across 240 V three-phase systems and large conductor terminations.
Product Information
Extended Description
DD327FDKW-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, 240 V, Max Hp: 500, 500 hp (3PH @480, 240 V), (4) 1/0 - (4) 750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD327FDKW-00LO
UPC
786689211936
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
240V
Product Category
Dust tight
Special features
w/ window, Lock-On Provision
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DD327FDKW-00LO
The DD327FDKW-00LO delivers rugged protection for high-horsepower motor circuits with an 800 A amperage rating, a 240 V three-phase supply, and a three-pole, three-wire configuration. This combination reduces the risk of fault propagation and equipment damage, translating into lower downtime and longer service intervals for critical production lines. The enclosure is built to last in harsh environments, sporting a NEMA 12, NEMA 3R rating and a painted galvanized steel finish that resists dust, moisture, and corrosion while maintaining a cost-effective profile. Fusible without neutral design and Class L fuse provision enable targeted protection and easy fuse replacement without unnecessary neutral conductors, improving maintenance efficiency and sparing spare parts inventory. The unit accepts large conductors—up to four 750 kcmil per phase (with four 1/0 cables minimum)—facilitating fast, clean power routing for substantial motor loads. Double-door isolation, a visual window, and Lock-On Provision enhance safety during servicing and help meet lockout/tagout requirements. At 82.25 inches long, 25.25 inches wide, and 17.125 inches high, with an approximate weight of 300 lb, installation is straightforward in purpose-built control rooms or rugged plant environments, and it remains compatible with 480 V motor-control architectures that demand robust protection and quick isolation.
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FAQs
Check the unit’s footprint and weight: length 82.25 in, width 25.25 in, height 17.125 in, and approximately 300 lb. Ensure your panel has sufficient depth, mounting provisions, and clearance for service. Confirm enclosure compatibility (NEMA 12, NEMA 3R) and available space for three-pole, three-wire 240 V circuits with fusible wiring and window/Lock-On provisions for safe maintenance.
The DD327FDKW-00LO supports 800 A at 240 V in a three-phase configuration and is rated for up to 500 HP at 480 V (and 600 V variants). This makes it suitable for high-current motor loads and large drive applications, while maintaining robust fault protection with Class L fusing and fusible without neutral wiring.
This safety switch carries UL Listed certification and is designed for NEMA 12 and NEMA 3R enclosures. The painted galvanized steel enclosure provides dust-tight and weather-resistant protection in industrial environments, delivering safer operation and easier compliance with electrical safety standards.
The unit uses Fusible without neutral configuration with Class L fusing. It supports four conductors per phase: four 1/0 AWG minimum up to four 750 kcmil conductors per phase. This wide termination range facilitates high-current connections and simplifies reconfigurations for heavy motor loads.
Key features include a window for visual status checks and a Lock-On Provision to support lockout/tagout procedures. These aspects improve maintenance safety, reduce the risk of accidental energization during service, and help align with standard plant safety practices while maintaining reliable isolation for 240 V three-phase circuits.