Eaton DH423FDKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH423FDKW
Quick Summary
Eaton DH423FDKW heavy duty fusible safety switch provides reliable isolation for industrial control panels. Maintaining uptime in dusty, wet environments is challenging when protection devices fail or require frequent maintenance. Key compliance references include UL Listed certification and NEMA 12/3R enclosure ratings, supporting safe, code-compliant operation. In practice, this translates to fewer maintenance cycles, faster fault isolation, and consistent performance in heavy commercial and industrial applications. The device’s four-pole design supports four-wire configurations and straightforward interconnection to 100 A circuits. With a 29 inch depth and a galvanized steel enclosure, it resists dust and moisture as part of a durable protection strategy. Warranty coverage provides additional risk mitigation for mission-critical projects in manufacturing, processing, and water treatment facilities.
Product Information
Extended Description
DH423FDKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blades, 4 blade, 100 A, NEMA 12/3R, Cartridge, Four-pole, Four-wire, 240 V, Max Hp: 15, 15/ 30, 30/ 20 hp (1,3PH @Std/TD/250 Vdc), 600 V, #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH423FDKW
UPC
786680182235
Product Length/Depth
29 in
Product Height
9 in
Product Width
17 in
Product Weight
39 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
Heavy Duty Safety Switch (HDSS), w/ Enhanced Visible Blade
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Cartridge
Fuse configuration
Fusible without neutral
Number Of Poles
Four-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
15, 15/ 30, 30/ 20 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature: Enhanced visible blade design. Business Impact: Safer manual operation and quicker status verification reduce commissioning time and minimize human error in high-risk environments. Application: Ideal for industrial control panels and HDSS configurations where visibility matters during maintenance. The clear blade feedback supports faster lockout/tagout procedures and reduces downtime. Feature: Four-pole, four-wire configuration at 100 A. Business Impact: Robust fault isolation and capacity for demanding loads across multi-line systems, improving overall line protection. Application: Heavy machinery, conveyors, and process equipment in manufacturing facilities. Feature: NEMA 12/3R enclosure with painted galvanized steel. Business Impact: Environmental protection against dust and moisture, lowering corrosion risk and extending service life. Application: Indoor service rooms and outdoor installations in harsh industrial settings. Feature: Cartridge fuse provision and fusible without neutral. Business Impact: Simple, safe fuse replacement and reliable circuit protection, minimizing outage windows. Application: Power distribution in mixed metal, chemical, and food processing environments with 240 V and 600 V options. Feature: Dimensions and weight (29 in L × 17 in W × 9 in H; 39 lb). Business Impact: Manageable footprint for panel mounting and easier service access, reducing install costs. Application: Retrofit projects and new builds with limited space in control rooms. Feature: UL Listed certification and heavy-duty performance. Business Impact: Regulatory compliance and predictable maintenance planning, improving total cost of ownership. Application: Compliance-driven projects in heavy commercial and industrial sectors.
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FAQs
Yes. The DH423FDKW is a four-pole, four-wire heavy duty fusible safety switch designed for industrial control panels. It supports 100 A loads, cartridge fuses, and is rated for 240 V nominal operation with a 600 V maximum, enabling straightforward integration into four-wire feeder configurations and standard electrical distribution schemes.
The unit provides 100 A amperage with a 240 V nominal rating and a 600 V maximum rating. The maximum horsepower rating is 15 HP standard, 15/30 HP for certain configurations, and 30/20 HP depending on phase and voltage conditions. These ratings apply to 1-3 phase installations as indicated by the data sheet.
This safety switch is designed for heavy commercial and industrial applications, including control panels, processing lines, and machinery protection. Its NEMA 12/3R enclosure and rugged galvanized steel construction make it suitable for indoor rooms and outdoor spaces with dust and moisture exposure, aligning with harsh production environments.
The DH423FDKW carries UL Listed certification and features a NEMA 12/3R enclosure. The combination of UL listing and these enclosure ratings provides recognized electrical safety compliance and environmental protection against dust and moisture, supporting safer operation in demanding industrial settings.
The product carries a one-year warranty from installation or eighteen months from shipment, whichever comes first. Routine maintenance benefits include cartridge fuse replacement and straightforward fault isolation enabled by the enhanced visible blade design. Spare parts and replacement cartridges are readily accessible to minimize downtime in mission-critical facilities.