Eaton DH323FWK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH323FWK
Quick Summary
Eaton DH323FWK heavy duty fusible safety switch provides rugged, reliable circuit isolation for industrial panels and outdoor equipment. Operators often contend with corrosion, moisture, and difficult maintenance—this unit resists these elements while delivering safe, labeled disconnects for quick, confident servicing. UL Listed protection, a NEMA 4X enclosure, and 304 stainless steel construction address critical compliance and durability requirements in harsh environments. Designed for medium to heavy motor control and power distribution, it supports flexible wiring and straightforward installation, helping minimize downtime and maintenance costs while meeting demanding industry standards.
Product Information
Extended Description
DH323FWK Eaton: Eaton Enhanced visible blade single-throw safety switch, Corrosion resistant, 100 A, NEMA 4X, 304 stainless steel, Class H, Three-pole, Three-wire, 240 V, Max Hp: 7.5, 15/ 15, 30/ 20 hp (1,3PH @Std/TD/250 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH323FWK
UPC
786685941141
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
22 lb
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Wire size
#14-1/0 AWG Cu/Al
Amperage Rating
100A
HP rating - max
7.5, 15/ 15, 30/ 20 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Feature: Corrosion-resistant 304 stainless steel enclosure provides long-term durability in washdown and outdoor environments. Business Impact: Reduces corrosion-related downtime and replacement costs, extending equipment life. Application: Outdoor panels, food & beverage processing, and water treatment facilities with exposure to humidity or chemicals. Feature: NEMA 4X enclosure rating delivers reliable protection against dust, water, and corrosion. Business Impact: Improves safety and reduces field service calls due to environmental ingress. Application: Outdoor switchgear, exterior control panels, and harsh industrial environments. Feature: 3-pole, 100 A configuration with Class H fuse provides robust overcurrent protection. Business Impact: Enhances circuit reliability and enables selective coordination for motor loads up to 7.5–30 hp depending on configuration. Application: 1P/3P motor control centers and panelboards in manufacturing. Feature: Fusible without neutral simplifies wiring and enables cost-efficient installation. Business Impact: Lowers wiring complexity and stock requirements while maintaining compliant isolation. Application: Three-wire, three-phase systems with Cu/Al conductors. Feature: Flexible wire size range #14-#1/0 Cu/Al supports common field wiring practices. Business Impact: Reduces sourcing complexity and improves retrofit feasibility. Application: Upgrades to existing installations or new builds requiring standard conductor sizes. Feature: UL Listed certification confirms recognized safety compliance. Business Impact: Facilitates procurement approvals and regulatory adherence. Application: Projects governed by strict electrical safety standards in industrial facilities.
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FAQs
For proper installation, mount the three-pole DH323FWK in a protected, accessible location with a 240 V supply. Ensure Cu/Al conductors fall within the #14-#1/0 range and wire without neutral. Use appropriate torque values per the Eaton datasheet and verify enclosure integrity to maintain NEMA 4X sealing and UL Listed compliance.
The DH323FWK is UL Listed and features a NEMA 4X stainless steel enclosure, providing corrosion resistance and weather protection. It uses Class H fuse provisions for reliable overcurrent protection and is designed for three-pole, three-wire circuits, aligning with common industrial safety and electrical code expectations.
Yes, the DH323FWK is rated for 240V and 3-phase operation. It employs a Class H, fusible configuration without neutral, supporting motor protection for HP ranges up to 7.5, 15/15, and 30/20 HP in standard/TD configurations. Wire sizes range from #14 to #1/0 Cu/Al to fit standard field wiring practices.
Maintenance focuses on confirming enclosure integrity, fuse condition, and wiring tightness. The 304 stainless steel, corrosion-resistant enclosure minimizes environmental wear, reducing servicing needs. Regular inspections should verify UL Listed status is intact and that the NEMA 4X seals remain uncompromised in outdoor or washdown environments.
Best-use applications include outdoor control panels, washdown and corrosive environments, and manufacturing lines requiring reliable motor protection. Its three-pole, 100 A design with NEMA 4X enclosure suits industrial automation, water treatment, and process industries where durable isolation and quick disconnects improve uptime and safety.