Eaton DH328NRKV Heavy Duty Fusible Safety Switch - NEMA 3R
Part Number: DH328NRKV
Quick Summary
Eaton DH328NRKV is a heavy-duty fusible safety switch designed for high-current power isolation in industrial settings. This unit helps engineers minimize downtime by providing rapid, safe disconnection during maintenance or fault events. UL Listed and NEC 230.62 (C) compliant barriers, along with a NEMA 3R enclosure, deliver robust protection in demanding environments. The combination of Class L fuse provision, fusible with neutral, and a three-pole, four-wire configuration supports reliable distribution while enabling straightforward installation in new or retrofit panels. With these features, the DH328NRKV delivers not only safety but clear business value through improved uptime, regulatory compliance, and long-term operating efficiency.
Product Information
Extended Description
DH328NRKV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 1200 A, NEMA 3R, Painted galvanized steel, Class L, Fusible with neutral, Three-pole, Four-wire, 240 V, (4)#1/0-(4)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH328NRKV
UPC
786685973166
Product Length/Depth
72 in
Product Height
21 in
Product Width
48 in
Product Weight
465 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
1200A
NEMA rating
NEMA 3R
Voltage rating
240V
Eaton Specification Sheet - DH328NRKV
Selling Policy 25-000 - Distribution and Control Products and Services
High amperage rating delivers direct isolation for 1200A feeders, reducing the need for auxiliary switching and accelerating startup and maintenance cycles. This translates to measurable uptime gains and lower labor costs during equipment servicing. The three-pole, four-wire design with neutral ensures accurate phasing and complete circuit protection, simplifying wiring during installation and minimizing wiring errors in complex layouts. The fusible with neutral configuration paired with Class L fuse provision supports selective coordination and fault clearing, improving system reliability and reducing downstream damage risk. The NEMA 3R enclosure, painted galvanized steel, provides weather resistance for outdoor or harsh indoor environments, reducing corrosion risk and panel ingress concerns while extending service life. Enhanced visible blade aids quick status verification during inspections, enabling faster commissioning and safer lockout/tagout procedures. UL Listed and NEC 230.62 (C) compliant barriers reinforce regulatory adherence, supporting audits and facility safety programs. When integrated with existing Eaton or compatible panels, the DH328NRKV offers straightforward compatibility, standard mounting patterns, and simplified field wiring, helping installers reduce project risk and timelines. In practice, these combined features deliver not only compliance but tangible reductions in total cost of ownership through fewer maintenance interruptions and more reliable power control.
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FAQs
The DH328NRKV is designed for high-current power isolation in industrial facilities, including distribution panels, service disconnects, and outdoor equipment feeds. Its 1200A rating, 240V operation, three-pole design, and NEMA 3R enclosure make it ideal for environments requiring reliable fault isolation, safe maintenance, and weather-resistant protection. It also supports NEC and UL compliance needs for regulated facilities.
The three-pole, four-wire configuration with neutral ensures correct phasing and complete circuit protection across all poles. This simplifies wiring during installation, reduces the risk of miswiring, and enables proper neutral return paths for connected loads. Together with a fusible switch arrangement, it improves fault isolation and panel safety for large motor or feeder circuits.
Yes. The DH328NRKV carries UL Listed certification and NEC 230.62 (C) compliant barrier protection. These certifications support installation in regulated facilities, simplify compliance documentation, and help meet safety program requirements for industrial power distribution installations.
The integrated fusible with neutral and Class L fuse provision provide built-in protection and fault-clearing coordination, reducing the need for external fusing solutions and additional equipment. The rugged NEMA 3R enclosure extends service life in harsh environments, lowering maintenance costs. The unit’s reliability decreases downtime, improving overall throughput and return on investment in high-demand applications.
Regular inspection of the visible blade, fuse condition, and enclosure integrity is recommended. The UL Listed design supports dependable performance, while the NEMA 3R enclosure protects against moisture and corrosion. Periodic testing of protection features, along with torque checks on mounting hardware, helps sustain safe operation and extends service life in outdoor or challenging facilities.