Eaton DH266NWK heavy duty fusible safety switch - NEMA 4X
Part Number: DH266NWK
Quick Summary
Eaton DH266NWK heavy duty fusible safety switch provides safe power isolation for industrial equipment. Engineers frequently face corrosion, restricted maintenance access, and compliance hurdles in harsh environments. UL Listed certification, NEC 230.62 compliant barrier, and a NEMA 4X stainless enclosure deliver safety, durability, and regulatory alignment across demanding applications. This solution also supports long-term cost savings through minimal maintenance and seamless integration with standard 600 V, three-wire systems, aligning with broader Eaton protection strategies and reducing total cost of ownership. By combining rugged construction with robust protection, it supports reliable operation in challenging facilities while simplifying ongoing compliance and maintenance planning.
Product Information
Extended Description
DH266NWK Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 600 A, NEMA 4X, 304 stainless steel, Class H, Fusible with neutral, Two-pole, Three-wire, 600 V, (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH266NWK
UPC
786685926476
Product Length/Depth
64 in
Product Height
13 in
Product Width
26 in
Product Weight
140 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
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
Amperage Rating
600A
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Corrosion‑resistant 304 stainless steel enclosure is designed for aggressive environments. This feature reduces corrosion-related downtime and replacement costs, enabling reliable service in washdown areas, outdoor installations, and chemical processing facilities. The NEMA 4X rating ensures splash resistance and enclosure integrity where weather and chemicals are present. Fusible with neutral Class H protection provides precise overcurrent protection while simplifying conductor selection. The two‑pole, three‑wire configuration supports a broad range of feeds and makes installation straightforward for typical 600 V systems up to 600 A, with copper or aluminum conductors up to 750 kcmil. The result is safer disconnection under fault conditions and predictable coordination. UL Listed certification confirms compliance with recognized safety standards, while NEC 230.62 barrier compliance helps installers meet accessibility and safety codes. These certifications reduce regulatory risk and streamline audits, particularly in regulated industries such as food and beverage, water treatment, and manufacturing. Dimensions and weight—64 in depth, 26 in width, 13 in height, and about 140 lb—support robust installation in equipment rooms and entry corridors. The compact footprint simplifies mounting alongside other gear and reduces required clearances while maintaining serviceability for maintenance personnel. Compatibility and installation advantages include direct wiring with standard lugs and compatible with existing Eaton protection products, enabling faster panel integration. The heavy-duty design minimizes spare parts inventory and provides long service life in mission-critical circuits, offering a favorable return on investment for capital projects and refurbishment programs. Industry context: in facilities where reliability and safety are paramount, a corrosion-resistant, high-current fusible switch like DH266NWK helps safeguard personnel and production lines without frequent replacements.
Get a Quick Quote for a Eaton DH266NWK
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DH266NWK?
Enquire Now
FAQs
DH266NWK is a two-pole, three-wire fusible safety switch with a neutral conductor option. It accepts large feed conductors up to 750 kcmil Cu/Al and is designed for straightforward wiring around standard 600 V systems. Its dimensions (64 in L, 26 in W, 13 in H) and 140 lb weight guide installation clearances and mounting layouts in controlled environments and utility spaces.
The DH266NWK is rated for 600 A and 600 V, making it suitable for high-current industrial circuits. The device provides safe isolation with Class H fuses and a fusible-with-neutral configuration, ensuring predictable fault interruption and coordination with upstream protection in demanding power-distribution applications.
Yes. The enclosure is NEMA 4X and constructed from 304 stainless steel, offering excellent corrosion resistance and splash protection. This makes the switch well-suited for outdoor installations, washdown areas, and corrosive processing environments where durability and reliability are priorities.
The DH266NWK carries UL Listed certification and complies with NEC 230.62 barrier requirements. The NEMA 4X and 304 stainless steel enclosure further support code compliance and safety in regulated facilities, simplifying audits and system approvals across industries such as manufacturing and water treatment.
The corrosion-resistant enclosure and robust Class H fusible protection reduce maintenance frequency and part replacement costs. Its durable construction, long service life, and UL/NEC compliance help lower lifecycle costs and risk, while straightforward installation and compatibility with common feeders accelerate project timelines and return on investment for capital upgrades.