Eaton DH326NPKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH326NPKV
Quick Summary
The Eaton DH326NPKV heavy duty fusible safety switch isolates large motor circuits with dependable safety and control in industrial environments. Downtime during maintenance and unreliable isolation can cost hours of production time and compromise safety. UL Listed, NEC 230.62 barrier compliant, and a NEMA 4 enclosure deliver rugged performance for harsh environments. With a 600 A amperage rating and a three-pole, four-wire configuration, it supports up to 200 hp on three-phase loads while maintaining code-compliant protection and strong fault isolation. This combination translates into safer operations, faster maintenance cycles, and long-term panel reliability, making it a practical choice for OEMs and end-user facilities seeking proven HDSS performance.
Product Information
Extended Description
DH326NPKV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 600 A, NEMA 4, Painted steel, Class H, Neutral, Three-pole, Four-wire, 240 V, Max Hp: 75, 200 hp (3PH @Std, TD)), (1)#2-(1)600 kcmil and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH326NPKV
UPC
786685972879
Product Length/Depth
71.75 in
Product Height
14.25 in
Product Width
25.38 in
Product Weight
163 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Heavy Duty Safety Switch (HDSS)
Enclosure
NEMA 4
Enclosure material
Painted steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
600A
HP rating - max
75, 200 hp (3PH @Std, TD))
NEMA rating
NEMA 4
Voltage rating
240V
Feature: 600 A amperage rating with a three-pole, four-wire configuration enables reliable disconnection for large motor loads, reducing arc exposure and enabling effortless lockout/tagout procedures. Business Impact: Improved worker safety and faster maintenance turnarounds, resulting in lower lifecycle costs. Application: Motor control centers, conveyors, and heavy machinery in harsh environments. Feature: Heavy duty fusible with neutral provides selective fault clearing and control-supply integrity, supporting sophisticated protection schemes. Business Impact: Enhanced system reliability and reduced unplanned downtime. Application: Panel assemblies requiring neutral for controls and sensing circuits. Feature: NEMA 4 enclosure with painted steel construction offers corrosion resistance and splash protection. Business Impact: Outdoor and washdown support, extending service life in demanding facilities. Application: Food & beverage processing, outdoor substations, and manufacturing floors. Feature: Class H fuse provision delivers high-temperature resistance and robust interrupting capacity. Business Impact: Superior protection for high-inertia loads and startup surges, reducing fuse-related outages. Application: Pumps, fans, and large conveyors. Feature: UL Listed with NEC 230.62 barrier compliance ensures regulatory alignment and safe, code-compliant installations. Business Impact: Simplified audits, fewer rework cycles, and peace of mind for project teams. Application: OEM equipment and centralized control panels. Feature: 75/200 hp max ratings for three-phase systems at 240 V accommodate a broad range of industrial motors. Business Impact: Compatibility with legacy and modern drives without custom solutions. Application: Industrial drives, presses, and material-handling equipment. The DH326NPKV blends rugged construction with thoughtful protection features to deliver measurable reliability and safety gains, while supporting standard installation practices and Eaton HDSS catalog expectations.
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FAQs
The DH326NPKV is a three-pole, four-wire safety switch rated for up to 600 A and 240 V, making it suitable for large 3‑phase motor circuits. It aligns with UL-listed HDSS footprints and Eaton control panel architectures, supporting neutral for control circuits and straightforward wiring to standard conductors (up to 750 kcmil Cu/Al). Installers should verify enclosure clearance and wiring gauge in accordance with NEC requirements.
Key specs include a 600 A amperage rating, 240 V voltage rating, 3-pole configuration with four wires, and a fusible with neutral design using Class H fuses. The device supports up to 75 to 200 hp in three-phase applications, is UL Listed, and provides NEMA 4 protection. These features enable predictable fault clearing and compliant motor isolation in demanding environments.
Yes. The DH326NPKV uses a NEMA 4 enclosure crafted from painted steel, designed to resist moisture, dust, and occasional washdown exposure. This makes it appropriate for outdoor installations, manufacturing floors, and other harsh environments where robust enclosure protection is essential for long-term reliability.
The DH326NPKV carries UL Listed certification and NEC 230.62 barrier compliance, reflecting adherence to recognized safety standards. The NEMA 4 enclosure further confirms suitability for adverse environments. These certifications simplify regulatory approvals, reduce engineering risk, and support safe, code-compliant panel builds.
The heavy duty fusible design provides reliable fault isolation and predictable fuse coordination, reducing unplanned outages. With a durable painted-steel enclosure and UL/NEMA-coded protections, maintenance cycles are simplified, improving workforce safety and lowering total cost of ownership over the equipment’s lifecycle in industrial facilities.