Eaton DH263NCK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH263NCK
Quick Summary
Eaton heavy duty fusible safety switch provides safe isolation for motor and power distribution panels in industrial facilities. Busy maintenance teams face challenges with wiring compatibility, fuse-change downtime, and environmental exposure in harsh plants. It carries UL Listed certification and uses a NEMA 4X enclosure to deliver corrosion resistance and washdown capability, with a Class H fuse provision for reliable protection. This product supports robust electrical protection & circuit control, delivering reliability, ease of installation, and reduced downtime for industrial automation environments.
Product Information
Extended Description
DH263NCK Eaton: Eaton Enhanced visible blade single-throw safety switch, 100 A, NEMA 4X, Non-metallic, KRYDON, Class H, Fusible with neutral, Two-pole, Three-wire, 600 V, Max Hp: 30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH263NCK
UPC
786685161976
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.
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
Non-metallic, KRYDON
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Two-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
30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc)
NEMA rating
NEMA 4X (Non-Metallic)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
With a 100 A rating, the DH263NCK provides robust overcurrent protection for two-pole, three-wire circuits, including fusible with neutral configurations. This capability reduces fault propagation, minimizes equipment damage, and shortens mean time to repair, protecting both motors and control panels during demanding shifts. Typical deployment is in industrial motor control centers and distribution panels where reliability matters. The NEMA 4X, non-metallic KRYDON enclosure delivers enhanced environmental protection against dust, water, and corrosion in washdown areas. This combination supports safer field installations and longer service life in manufacturing floors and outdoor installations. The fuse class provision is Class H and the unit is configured as fusible with neutral in a two-pole, three-wire arrangement. This simplifies wiring schemes, reduces miswiring risk, and enables quicker maintenance with standardized replacement fuses, improving uptime in continuous operations. Wiring compatibility includes support for #14-1/0 AWG Cu/Al conductors, enabling use with common feeders and minimizing the need for rewiring during upgrades. The three-wire, two-pole design also streamlines integration with existing control circuits, reducing installation time and potential for wiring errors. UL Listed certification, a one-year warranty (or 18 months from shipment) and a rugged build translate to predictable performance and lower total cost of ownership. The compact footprint and clear labeling simplify retrofits and future expands in electrical protection & circuit control strategies. HP rating and voltage support up to 600 V with a max of 30–40 hp (depending on configuration) ensures the switch can handle typical industrial motor loads, making it suitable for a wide range of applications from conveyors to pumps. The durable design supports long service life in harsh environments.
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FAQs
The DH263NCK supports #14 through #1/0 AWG copper or aluminum conductors in a 3‑wire, two‑pole configuration with a fusible neutral. It is designed for 600 V systems and uses Class H fuses, enabling straightforward field wiring, proper torque, and secure terminations. This design minimizes wiring errors during commissioning and simplifies future upgrades.
Yes. The DH263NCK is rated for 600 V and supports motor loads up to 30–40 hp, with 25 hp referenced for certain single‑phase (1PH) configurations at 480–600 V (TD/600 Vdc). The two‑pole, fusible with neutral design further complements motor control in panels and MCCs where precise protection and simple sizing matter.
The unit features a NEMA 4X enclosure with a non-metallic KRYDON body, delivering excellent protection against dust, water, and corrosion in washdown and harsh environments. This enclosure choice supports safe outdoor installations, factory floors with moisture exposure, and demanding manufacturing settings while maintaining accessibility for maintenance.
The DH263NCK carries UL Listed certification for safety compliance and includes a warranty of one year from installation or 18 months from shipment, whichever occurs first. This combination provides assurance of product reliability, service support, and long-term protection for equipment investments in electrical protection & circuit control.
The safety switch measures 16.46 in in depth, 27.25 in in height, and 14.25 in in width, with an approximate weight of 45 lb. These dimensions facilitate space planning in control panels and MCCs, enabling straightforward mounting, duct clearance, and wiring clearance in constrained installations.