Eaton DH327NRKV Heavy duty fusible safety switch - NEMA 3R
Part Number: DH327NRKV
Quick Summary
Eaton DH327NRKV heavy duty fusible safety switch provides safe isolation for industrial motor circuits and control panels. A common challenge is selecting a switch that can reliably handle 800 A loads while simplifying maintenance and fault diagnostics. Built to UL Listed standards with NEC barrier compliance and a NEMA 3R enclosure, it supports safe operation in both indoor and outdoor environments. The combination of high amperage capability, rugged enclosure, and fusible-with-neutral configuration reduces downtime and simplifies compliance paperwork. This makes it a strong fit for OEMs, integrators, and maintenance teams seeking durable, code-compliant electrical protection with predictable performance and long service life.
Product Information
Extended Description
DH327NRKV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 800 A, NEMA 3R, Painted galvanized steel, Class L, Fusible with neutral, Three-pole, Four-wire, 240 V, Max Hp: 100 hp (3PH @Std), (4)#1/0-(4)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH327NRKV
UPC
786685973036
Product Length/Depth
57.5 in
Product Height
12.38 in
Product Width
27.5 in
Product Weight
177 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Heavy Duty Safety Switch (HDSS)
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class L
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
100 hp (3PH @Std)
NEMA rating
NEMA 3R
Voltage rating
240V
Feature: 800A amperage rating with a 240V supply. Business impact: Enables reliable protection of large 3-phase loads, reducing fuse replacements and enabling proper coordination with upstream protection devices. Application: ideal for motor circuits up to 100 hp (3PH @Std) in manufacturing lines and process equipment. Feature: NEMA 3R painted galvanized steel enclosure. Business impact: Provides weather-resistant protection for indoor/outdoor installations, lowering corrosion risk and extending service life. Application: suited for outdoor equipment pads, washdown environments, and semi-enclosed electrical rooms. Feature: Class L fuse provision and fusible with neutral. Business impact: supports selective fault isolation, reduces nuisance trips, and aligns with NEC requirements. Application: three-pole, four-wire configurations in industrial control systems. Feature: Enhanced visible blade for quick status checks. Business impact: accelerates troubleshooting and improves operator safety during maintenance. Application: daily checks in high-availability facilities. Feature: UL Listed with NEC barrier compliance. Business impact: delivers regulatory acceptance and smoother procurement for compliant projects. Application: OEMs, contractors, and facilities teams seeking dependable, code-compliant protection.
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FAQs
For 3-phase 240V systems, mount the DH327NRKV in a suitable enclosure with a NEMA 3R rating to resist weather and corrosion. Ensure correct wiring: three poles, four wires, and neutral connected per manufacturer guidelines. Verify clearance for maintenance access and leave space for wiring terminals to support safe operation and future expansion.
Yes. The DH327NRKV is fusible with neutral and supports Class L fuse provisions, enabling precise fuse protection and fault isolation in three-pole, four-wire installations. This compatibility helps achieve selective coordination and aligns with NEC requirements for switch assemblies protecting motor controllers.
This unit is ideal for motor protection in industrial facilities, including motor control centers, conveyors, pumps, and other large-load equipment. With an 800A rating at 240V and NEMA 3R protection, it supports up to 100 hp three-phase motors and provides reliable isolation in both indoor and outdoor environments.
The DH327NRKV is UL Listed and designed to NEC barrier requirements, with a NEMA 3R enclosure for exterior use. These certifications and standards support safe, code-compliant installations in industrial settings and simplify approvals for OEMs and contractors.
By delivering robust fault isolation, clear status indication through the enhanced visible blade, and a durable enclosure, the DH327NRKV reduces maintenance time and unplanned downtime. Its SEL/UL NEC compliance also minimizes rework during audits and protects large motor circuits with reliable, long-term protection.