Eaton DH323FCK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH323FCK
Quick Summary
Eaton DH323FCK heavy duty fusible safety switch provides safe, reliable control for three‑phase industrial power distribution in harsh environments. For integrators and maintenance teams, downtime due to corrosion, moisture ingress, and unsafe switching is a costly bottleneck. This unit is UL Listed and housed in a NEMA 4X, corrosion‑resistant Krydon enclosure, with a NEC 230.62 compliant barrier, delivering robust protection in demanding facilities. The combination of three‑pole operation, 240 V rating, and Class H fusing supports dependable service entrances, while long‑term reliability lowers total cost of ownership and reduces maintenance intervals. In practice, it complements broader protection strategies for industrial automation and electrical distribution networks.
Product Information
Extended Description
DH323FCK Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 100 A, NEMA 4X, Non-metallic, KRYDON, 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
DH323FCK
UPC
782114296035
Product Length/Depth
16.46 in
Product Height
27.25 in
Product Width
14.25 in
Product Weight
45 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 4X
Enclosure material
Non-metallic, KRYDON
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 (Non-Metallic)
Voltage rating
240V
Product Category
Heavy Duty, Harsh Environment - EnviroLine
Feature: NEMA 4X, corrosion‑resistant Krydon enclosure → Business Impact: Protects against water, dust, and chemicals, reducing corrosion‑related downtime and maintenance costs → Application: Outdoor installations or washdown environments where ingress protection is crucial. Feature: 100 A amperage rating with three‑pole configuration → Business Impact: Handles substantial motor and load demands with a single, compact switch, improving panel space utilization and fault isolation → Application: 3‑phase motor control and process lines in manufacturing settings. Feature: 240 V operating voltage with three‑wire configuration and fusible without neutral → Business Impact: Simplifies wiring schemes and protects sensitive equipment with selective coordination for safe shutdowns → Application: Industrial power distribution requiring reliable phase protection. Feature: Class H fuse provision and fusible design → Business Impact: High interrupting rating with predictable protection curves, reducing arc flash risk and equipment damage → Application: Heavy duty equipment and critical drives in harsh environments. Feature: Wire size range #14‑1/0 Cu/Al and service‑entrance suitability with lug kit option → Business Impact: Flexible integration with existing feeders, lowers installation time, and supports code‑compliant service entrances → Application: Retrofit and new builds where space and compliance matter. Feature: UL Listed, NEC 230.62 barrier, and documented standards → Business Impact: Verified safety and regulatory compliance, minimizing commissioning delays and risk → Application: Facilities with strict safety audits and corporate compliance programs.
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FAQs
DH323FCK is a three‑pole, 3‑wire switch designed for 240 V three‑phase systems. It accepts wire sizes #14‑1/0 Cu/Al and supports service entrance use with a neutral or ground lug kit. Ensure enclosure mounting is suitable for the installation environment and that mounting clearances meet local codes. Prepare for straightforward wiring with clearly labeled lugs and adherence to the NEC 230.62 barrier requirements.
Key specs include a 100 A amperage rating, 240 V voltage rating, and a three‑pole configuration with fusible without neutral. It supports motor loads up to 7.5 to 30 HP (1‑phase and 3‑phase variants as noted in ratings) and uses Class H fuses. The enclosure is NEMA 4X and corrosion‑resistant Krydon, providing protection in harsh environments.
This switch is ideal for service entrances and harsh production environments such as manufacturing lines, washdown areas, and outdoor installations. Its corrosion‑resistant enclosure and robust fuse design help protect motors and drives, while the three‑pole configuration simplifies phase protection and clearance during maintenance.
The DH323FCK carries UL Listed certification and is designed with a NEC 230.62 compliant barrier. Its NEMA 4X enclosure provides reliable ingress protection, and the Krydon material enhances corrosion resistance. These features collectively support safety compliance audits and regulatory requirements in demanding facilities.
The corrosion‑resistant Krydon enclosure and UL Listed protection reduce corrosion‑related downtime and service calls. With a one‑year Eaton warranty and straightforward serviceability, maintenance cycles are longer and parts replacement becomes predictable. The three‑pole, fusible design protects critical drives efficiently, contributing to lower total cost of ownership over the equipment’s lifecycle.