Eaton DD327FWKW Fused Safety Switch - UL Listed
Part Number: DD327FWKW
Quick Summary
The Eaton DD327FWKW fused safety switch provides reliable line isolation for industrial control panels. In harsh environments, maintenance teams face corrosion, downtime, and complex wiring challenges; this unit’s 304 stainless steel, NEMA 4X enclosure is designed to mitigate those issues while delivering dependable performance. It carries UL Listed safety certification and a rugged NEMA 4X enclosure in a three-pole, three-wire configuration rated at 240 V, with up to 800 A and 500 hp (3PH @ 480/600 V) capabilities. The design supports fast, straightforward installation and long-term reliability, while accommodating a wide conductor range (#1/0 to (4) 750 kcmil). This combination drives safety, compliance, and operational efficiency across your power distribution network.
Product Information
Extended Description
DD327FWKW Eaton: Eaton Double door single-throw fused safety switch, 800 A, NEMA 4X, Class L, Fusible without 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
DD327FWKW
UPC
786679173695
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
Enclosure
NEMA 4X
Enclosure material
304 stainless 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
Watertight
Special features
w/ window
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 - DD327FWKW
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Enclosure and materials: NEMA 4X rated enclosure with 304 stainless steel construction deliver corrosion resistance and washdown suitability, reducing maintenance costs and extending service life in harsh environments such as food & beverage, water treatment, and chemical processing. Application-wise this means fewer unplanned outages and safer access for technicians. Feature → Business Impact → Application: Fusible without neutral, three-pole, three-wire configuration simplifies wiring and upgrade paths, decreasing installation time and potential wiring errors in panel upgrades or retrofits for conveyor systems and large motor drives. Feature → Business Impact → Application: 800 A amperage rating and 500 hp (3PH @480/600 V) capability support high-load motors and process lines, enabling reliable starting and protection for pumps, fans, and mixers while reducing nuisance trips. Feature → Business Impact → Application: 240 V voltage rating paired with Class L fuse provision ensures selective coordination and predictable fast-acting protection, minimizing damage and downtime during fault events in critical processes. Feature → Business Impact → Application: Double-door isolation switch and rugged construction provide safe, accessible maintenance points with space for window view, aiding diagnostics and compliance checks during routine inspections in batch processing and packaging lines. Feature → Business Impact → Application: Comprehensive specifications (86.73 in depth, 22.16 in height, 26.57 in width, 300 lb weight) offer clear footprint planning and mount compatibility for retrofit projects in existing switchgear rooms and new builds alike, reducing installation risk and permit delays.
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FAQs
When retrofitting or upgrading, verify the 86.73 in depth and overall footprint to fit existing enclosures. Ensure three-pole, three-wire wiring with a fusible Class L arrangement is compatible with your motor starter and that conductor sizes range from #1/0 to 750 kcmil for efficient termination. Prepare for a 240 V supply and secure mounting in a NEMA 4X environment to maintain the enclosure’s integrity during washdowns.
Key specs include 800 A amperage rating, 500 hp max at 3PH @ 480/600 V, 240 V voltage rating, fusible without neutral configuration, and three-pole/three-wire design. The enclosure is NEMA 4X with 304 stainless steel construction, UL Listed certification, and a double-door isolation switch format for reliable line isolation and service access.
Yes. It is designed for washdown and corrosive settings, featuring a NEMA 4X rated enclosure and 304 stainless steel construction. This combination provides protection against water, dust, and corrosion, making it ideal for industries like food & beverage, chemical processing, and water treatment.
The DD327FWKW carries UL Listed certification, ensuring compliance with recognized electrical safety standards. Its NEMA 4X enclosure and corrosion-resistant construction support regulatory and safety requirements in demanding environments, while the Class L fuse configuration supports selective protection and reliability in motor circuits.
The device reduces downtime through robust protection and easier maintenance access due to its double-door design and window feature. With high-current capability (800 A) and large HP protection (up to 500 HP), fewer motor trips translate to lower maintenance costs and higher production uptime. Regular inspections of the enclosure, fuses, and terminations, along with using a UL-listed, NEMA 4X solution, help sustain long-term reliability.