Eaton DH325NRKLLV Heavy Duty Fusible Safety Switch - UL
Part Number: DH325NRKLLV
Quick Summary
Eaton heavy duty fusible safety switch provides safe, reliable control of power distribution in industrial environments. Operators often contend with nuisance fuse changes and mis-wiring that lead to unplanned downtime; this unit reduces risk with a robust three-pole, four-wire configuration and cartridge fuses. UL Listed and NEC 230.62 compliant barriers, plus a NEMA 3R enclosure, help ensure regulatory compliance and operator safety across indoor and outdoor installations. With a 400 A rating and 240 V operating voltage, it delivers scalable protection for heavy equipment while supporting straightforward installation and service. This combination supports uptime, regulatory alignment, and long-term maintenance efficiency for industrial facilities.
Product Information
Extended Description
DH325NRKLLV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 400 A, NEMA 3R, Cartridge, Neutral, Three-pole, Four-wire, 240 V, Max Hp: 50, 125/ 50 hp (3PH @Std, TD/250 Vdc), (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH325NRKLLV
UPC
786680182099
Product Length/Depth
56 in
Product Height
10.8 in
Product Width
26 in
Product Weight
120 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
HEAVY DUTY SAFETY SWITCH (HDSS), NO WINDOW
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Cartridge
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125/ 50 hp (3PH @Std, TD/250 Vdc)
NEMA rating
NEMA 3R
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature 400 A amperage rating → Business Impact Protects large motors and high-load equipment, reducing nuisance fuse events and potential equipment damage. Application Heavy manufacturing lines, motor control centers, and critical industrial feeders. The result is fewer unplanned outages and lower maintenance costs. Feature NEMA 3R enclosure with painted galvanized steel → Business Impact Delivers weather-resistant, rugged protection for harsh environments, extending equipment life. Application Outdoor substations and exposed industrial areas benefit from reliable enclosure performance. The outcome is safer outdoor installations and simplified asset management. Feature Cartridge fuse with neutral and four-wire configuration → Business Impact Enables selective coordination and precise fault isolation, minimizing downstream disruption. Application Heavy-duty process lines and complex motor loads benefit from easier fault tracing and reduced risk. The result is faster maintenance windows and improved safety. Feature UL Listed and NEC 230.62 barrier compliance → Business Impact Streamlines regulatory audits and improves worker safety, reducing compliance overhead. Application Facilities with strict safety and building-code requirements gain a straightforward path to compliance. The benefit is lower risk and documented safety adherence. Feature 56 in length, 10.8 in height, 26 in width, 120 lb weight → Business Impact Clear footprint planning and installation budgeting for plant floors and control rooms. Application Retrofit projects or new builds can accommodate the unit without reshaping layouts. The benefit is predictable installation planning and minimized site disruption. Feature 600 V max, 240 V rating, 50/125/50 hp performance → Business Impact Provides versatile protection for diverse motor sizes and supply configurations, improving scalability. Application Industrial plants with mixed voltage and horsepower requirements gain a single, adaptable protection solution. The result is reduced part numbers and simplified procurement.
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FAQs
DH325NRKLLV is designed with a NEMA 3R enclosure and painted galvanized steel to resist weather, dust, and moisture. For outdoor installations, verify enclosure clearance, proper grounding practices, and sheltering from direct water jets. Ensure compatible wiring routes and secure mounting on a stable surface to maintain barrier integrity and long-term reliability.
The switch provides a 400 A amperage rating and a 240 V rating with a maximum 600 V operating potential, accommodating heavy motors and high-load feeders. It is a three-pole, four-wire design with cartridge fuses and a neutral, enabling selective coordination and controlled fault isolation in demanding industrial processes.
Yes, the unit is UL Listed and compliant with NEC 230.62 barrier requirements. This combination supports safety and regulatory audits by providing a certified enclosure, protective barriers, and documented compliance for industrial electrical installations.
Heavy commercial and industrial environments with large motors or high-power equipment benefit most. Typical applications include manufacturing lines, pumping systems, and conveyor networks where reliable motor protection, ease of maintenance, and regulator compliance are critical to uptime and safety.
Plan for periodic inspection of cartridge fuses and neutral connections, verify enclosure seals, and confirm barrier integrity during routine maintenance. The unit’s robust build and 1-year warranty support reduced downtime costs and extend motor life, delivering a favorable total cost of ownership in high-demand facilities.