Eaton DD328FWKW-00V1 Fused Safety Switch - UL Listed
Part Number: DD328FWKW-00V1
Quick Summary
Eaton DD328FWKW-00V1 is a heavy-duty fused safety switch that isolates 3-phase power in industrial electrical systems. This design addresses downtime and safety concerns by providing reliable isolation and straightforward maintenance. With UL Listed certification, a NEMA 4X watertight enclosure, and a 304 stainless steel build, it withstands harsh environments while meeting strict regulatory requirements. The combination of a Class L fuse provision and a voltage indicator line side with a window supports fast fault detection and safer operation, enhancing maintenance workflows. For system integrators and procurement teams, this switch offers robust protection and long-term total cost of ownership advantages in demanding facilities.
Product Information
Extended Description
DD328FWKW-00V1 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line side, 1200 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
DD328FWKW-00V1
UPC
786679184424
Product Length/Depth
27.18 in
Product Height
43.11 in
Product Width
91.02 in
Product Weight
575 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 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
1200A
Fuse class provision
Class L
HP rating - max
500, 500 hp (3PH @480/600 V)
Voltage rating
240V
Product Category
Watertight
Special features
V indicator line side, w/ window
ARMS Enclosed Circuit Breaker
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Eaton Specification Sheet - DD328FWKW-00V1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The DD328FWKW-00V1 uses a three-pole fusible configuration rated up to 1200A with a 240V supply, enabling high-current motor control and main power isolation with minimal nuisance tripping; this translates to improved equipment protection and reduced outage duration in heavy industry environments. Feature → Business Impact → Application: A NEMA 4X, 304 stainless steel enclosure provides corrosion resistance and washdown compatibility, reducing maintenance costs and extending service life in food processing, chemical plants, and outdoor installations. Feature → Business Impact → Application: Voltage indicator line side with window allows quick visual verification of status during lockout/tagout cycles, decreasing commissioning time and boosting safety for technicians in shift-change scenarios. Feature → Business Impact → Application: Fusible without neutral and Class L fuse provision support selective coordination and reliable fault clearing, helping engineers minimize collateral damage to downstream equipment in HVAC, water treatment, and processing lines. Feature → Business Impact → Application: Large conductor capacity (up to (#4)750 kcmil) and multi-wire connections enable scalable power distribution for high-horsepower equipment, such as pumps and conveyors in mining or manufacturing facilities, while maintaining clean installation and fault management. Feature → Business Impact → Application: The 500 hp maximum rating at 3PH @480/600V demonstrates suitability for demanding drive applications, reducing the need for frequent switchgear upgrades and enabling longer asset life in high-demand environments. Feature → Business Impact → Application: The watertight, heavy-duty enclosure design supports external mounting in outdoor or washdown zones, delivering consistent protection where weather and exposure would otherwise drive maintenance costs and downtime. Feature → Business Impact → Application: UL-listed certification underpins regulatory compliance and audit readiness for critical infrastructure, helping procurement teams satisfy vendor qualification and safety standards while simplifying purchasing approvals.
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FAQs
The DD328FWKW-00V1 is a three-pole, fusible safety switch designed for 240V three-phase power. It supports up to 1200A and uses fusible without neutral configuration, with 3 wires and large conductor capacity up to 4/0–750 kcmil as specified. For installation, ensure enclosure mounting in a suitable space, account for its substantial footprint, and follow lockout/tagout procedures using the voltage indicator line side with window for quick verification during maintenance.
This switch is rated for up to 500 hp at 3PH @ 480/600V, with a 1200A amperage rating and 240V operating voltage. The Class L fuse provision provides controlled, fast-acting protection, while the three-pole, 3-wire design ensures reliable—and code-compliant—motor isolation. These specs make it suitable for heavy-duty motors in manufacturing, pumps, and conveyors, reducing nuisance trips and protecting downstream equipment.
Yes. The enclosure is UL-listed and rated NEMA 4X, with a 304 stainless steel construction that resists corrosion and withstands washdown conditions. This makes the DD328FWKW-00V1 ideal for harsh environments, including outdoor installations, food and beverage facilities, and chemical processing plants, where reliability and easy cleaning are essential.
The product carries UL Listed certification and features a NEMA 4X enclosure with 304 stainless steel. These attributes support regulatory compliance, splash- and corrosion-resistance, and suitability for challenging environments. For project approvals, these certifications help satisfy safety and quality requirements during supplier qualification and audits.
The combination of UL listing, corrosion-resistant 304 stainless steel, and a voltage indicator window reduces maintenance time and inspection effort, lowering downtime. Its high current and horsepower ratings mean fewer replacements or upgrades for demanding drives, contributing to lower life-cycle costs. A published one-year warranty (with extended terms in policy) further mitigates risk during the initial deployment and commissioning phase.