Eaton DH227NRKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH227NRKV
Quick Summary
Eaton DH227NRKV heavy duty fusible safety switch provides safe isolation for industrial feeders in demanding environments. Customers often struggle with corrosion, washdown exposure, and downtime when selecting a switch that can endure harsh service conditions. This unit features a corrosion-resistant 304 stainless steel enclosure with a NEMA 4X rating and UL Listed certification to support reliable operation in challenging plants and outdoor locations. With supports for up to 800 A at 240 V and a Class L fuse provision, it accommodates large motor loads while maintaining safety. Its fusible with neutral configuration and two-pole, three-wire setup streamline control circuits. Overall, this switch helps engineers meet NEC requirements and improve uptime across heavy manufacturing and process environments.
Product Information
Extended Description
DH227NRKV Eaton: Eaton Enhanced visible blade single-throw safety switch, Corrosion resistant, 800 A, NEMA 4X, 304 stainless steel, Class L, Two-pole, Three-wire, 240 V, Max Hp: 100, 250 hp (3PH @ Std fuse/time delay), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH227NRKV
UPC
786685973319
Product Length/Depth
12.75 in
Product Height
71.75 in
Product Width
24.9 in
Product Weight
210 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Heavy Duty Safety Switch (HDSS)
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse class provision
Class L
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
100, 250 hp (3PH @ Std fuse/time delay)
NEMA rating
NEMA 3R
Voltage rating
240V
Feature: Corrosion-resistant construction provides extended service life in washdown and outdoor environments. Business Impact: Reduces maintenance cycles and replacement costs while keeping critical controls protected in corrosive spaces. Application: Food processing, chemical plants, and water treatment facilities benefit from fewer unscheduled downtimes. Feature: NEMA 4X enclosure with 304 stainless steel construction. Business Impact: Delivers reliable protection against dust, water ingress, and chemical exposure, lowering service visits and warranty risk. Application: Outdoor substations and plants with frequent washdowns gain predictable performance. Feature: Fuse class provision Class L and fuse configuration Fusible with neutral. Business Impact: Improves fault discrimination and motor protection, reducing nuisance trips and energy waste. Application: Large-motor drives and feeder circuits in manufacturing lines. Feature: Amperage rating 800 A and HP rating max 100, 250 hp (3PH @ Std fuse/time delay). Business Impact: Supports high-current motor loads without oversizing equipment, lowering total cost of ownership. Application: Heavy-duty conveyors, pumps, and presses in industrial facilities. Feature: Two-pole, three-wire design with neutral. Business Impact: Streamlines wiring, simplifies control circuits, and enhances safe isolation during maintenance. Application: Control panel retrofits and new installations in industrial automation. Feature: Certifications UL Listed and NEC 230.62 (C) compliant barrier. Business Impact: Ensures regulatory alignment and safety compliance across facilities, easing audits. Application: Systems requiring formal safety certifications and code conformity in North America.
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FAQs
When installing the DH227NRKV in new builds, ensure proper mounting clearance for cooling and service access, accommodate a two-pole, three-wire wiring scheme with a neutral, and provide suitable conduit entries. Use a 240 V supply capable of delivering up to 800 A. Verify enclosure integrity, as the NEMA 4X design requires appropriate indoor/outdoor installation with weather protection.
The DH227NRKV is rated for 800 A and supports motor loads up to 100 hp or 250 hp for three-phase systems with standard fuse/time delay. The unit operates at 240 V and is designed to handle large-motor applications while maintaining safe isolation and reliable protection, suitable for demanding manufacturing drives and process equipment.
Yes. The enclosure is NEMA 4X, constructed from 304 stainless steel, and designed to resist corrosion and washdown exposure. These features make it suitable for outdoor installations and harsh environments found in food processing, chemical plants, and other facilities requiring robust protection against moisture and contaminants.
This switch is UL Listed and complies with NEC 230.62 barrier requirements. The combination of UL certification and NEC barrier compliance helps streamline regulatory approvals, safety audits, and installation in North American facilities, reducing the risk of non-compliance during inspections and commissioning.
The DH227NRKV delivers extended service life due to corrosion-resistant 304 stainless steel and a rugged NEMA 4X enclosure, reducing maintenance frequency. By supporting high-current motors with reliable fault isolation and UL/NEMA compliance, facilities experience lower downtime, fewer repair visits, and improved uptime for critical manufacturing lines, translating to a favorable return on investment over the life of the equipment.