Eaton DH266NDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH266NDK
Quick Summary
The Eaton DH266NDK heavy duty fusible safety switch is designed to provide reliable isolation for high-current, 3-wire power systems in industrial facilities. Operators and maintenance teams often contend with downtime and safety concerns when protective devices are under-specified or fail to tolerate system fault conditions. UL Listed and NEC 230.62 compliant barrier, along with a NEMA 12/3R enclosure, help ensure regulatory compliance and safer installation across rugged environments. With a 600 A rating and a fusible-with-neutral configuration, it delivers precise protection while simplifying fault clearing and downstream equipment safeguarding. By pairing robust protection with standard 600 V operation, this model supports reliable, scalable power distribution and reduces maintenance costs.
Product Information
Extended Description
DH266NDK Eaton: Eaton Heavy duty single-throw fused safety switch, 600 A, NEMA 12/3R, Painted galvanized 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
DH266NDK
UPC
786685926452
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 12, NEMA 3R
Enclosure material
Painted galvanized 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 12/3R
Voltage rating
600 V
Feature: 600 A, two-pole fusible with neutral delivers decisive isolation and fault current interruption. Business Impact: enables reliable shutdown of heavy motor loads and reduces arc flash exposure, improving worker safety and uptime. Application: ideal as a main disconnect in manufacturing and process facilities that require fast fault clearing. Feature: NEMA 12, NEMA 3R painted galvanized steel enclosure provides robust protection against dust, moisture, and corrosion. Business Impact: lowers maintenance costs and extends service life in challenging plant environments. Application: suitable for indoor switchgear rooms and semi-exposed installations. Feature: Class H fuse provision with neutral enhances selective coordination and simplifies fuse replacement. Business Impact: improves system selectivity and reduces downtime during maintenance. Application: critical in controls circuits and motor control centers. Feature: UL Listed and NEC 230.62 barrier compliance ensure regulatory alignment and safer installations. Business Impact: minimizes compliance risk and accelerates inspections. Application: facilities with strict electrical safety standards. Feature: 600 V rating, 3 wires, 2 poles supports standard 3-phase distribution. Business Impact: straightforward wiring, faster integration, and reliable performance. Application: distribution panels and industrial power networks. Feature: Heavy duty fusible safety switch construction with fusible with neutral configuration offers rugged reliability. Business Impact: reduces maintenance frequency and extends equipment life. Application: high-demand process lines and heavy machinery.
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FAQs
The DH266NDK is a two-pole, fusible with neutral unit rated for 600 V and 600 A, designed for NEMA 12/3R enclosures. Ensure correct neutral wiring, mount within its enclosure, and verify compatible fuse class (Class H). The unit supports standard control wiring and is UL Listed, helping streamline code-compliant installation in industrial facilities.
Fusible with neutral provides a defined neutral return path while interrupting both hot legs during a fault, improving fault clearing coordination and protecting downstream equipment. This reduces arc energy exposure and supports safer shutdown sequences in motor loads and process lines.
Yes. The DH266NDK carries UL Listing and NEC 230.62 compliant barrier, which helps meet electrical safety and installation requirements in industrial facilities. It’s designed for 600 A, 600 V service with a NEMA 12/3R enclosure, making it appropriate for protected indoor and semi-exposed spaces.
Key certifications include UL Listed protection and NEC 230.62 barrier compliance. The enclosure is rated NEMA 12/NEMA 3R, ensuring dust, moisture, and corrosion resistance suitable for rugged plant environments. These certifications support safer installations and smoother regulatory inspections.
With a robust 600 A rating and a fusible-with-neutral design, the DH266NDK offers durable protection and straightforward fuse replacement, reducing downtime. The UL listing and barrier compliance improve compliance confidence, potentially lowering audit costs. Regular inspection of fuses and enclosure integrity maintains protection levels and supports longer equipment life.