Eaton DH227NGKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH227NGKV
Quick Summary
Eaton DH227NGKV heavy duty fusible safety switch safely isolates large electrical circuits in industrial environments. Engineers often struggle with reliable shutdown during fault conditions and complex wiring configurations, which can extend downtime. UL Listed, NEC 230.62 (C) compliant barrier, and a rugged NEMA 4 painted steel enclosure deliver critical protection for harsh facilities. This model blends high current capability with straightforward installation and wiring compatibility, supporting panel protection and industrial protection device ecosystems while helping facilities reduce risk, maintenance costs, and unplanned outages.
Product Information
Extended Description
DH227NGKV Eaton: Eaton Enhanced visible blade single-throw safety switch, 800 A, NEMA 4, Painted 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
DH227NGKV
UPC
786685973302
Product Length/Depth
12.75 in
Product Height
71.75 in
Product Width
24.9 in
Product Weight
170 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 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 1
Voltage rating
240V
The DH227NGKV is rated for 800 A and uses a fusible two-pole, three-wire configuration at 240 V with a Class L fuse provision and neutral. This enables reliable large-motor control and supports up to 100 hp as a standard rating, with up to 250 hp possible on three-phase systems using time-delay fuses, reducing total fuse inventory and simplifying protective coordination. The enclosure is a NEMA 4, painted steel design, providing excellent weathering and washdown resilience for harsh plant environments, which translates to lower corrosion-related maintenance and longer service life. The fuse configuration specifies fusible with neutral, supporting robust fault isolation for 3-wire installations while accommodating a broad conductor range (Cu/Al) up to 750 kcmil, streamlining installation in new builds or retrofits. Compliance and labeling are reinforced by UL Listing and NEC barrier requirements, ensuring rapid certification audits and safer panel layouts. With a compact, two-pole form factor, this HDSS integrates smoothly into motor control centers and large equipment enclosures, delivering predictable performance and reduced downtime in demanding industrial settings. In practice, this switch supports standard motor protection schemes, simplifies wiring schematics, and aligns with HDSS catalog notes for reliable, long-term operation.
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FAQs
The DH227NGKV is designed for large motor control applications in industrial facilities, including motor control centers and process lines. It features a two-pole, three-wire configuration at 240 V with a fusible provision and neutral, enabling safe isolation of high-current circuits while supporting up to 800 A. Its NEMA 4 enclosure tolerates damp or outdoor environments, helping maintain protection in varied plant layouts. This makes it a strong choice for retrofit projects and new installations where reliable shutdown and clear wiring are essential.
The DH227NGKV provides a max horsepower rating of 100 hp as a standard specification, with up to 250 hp for three‑phase applications when using standard fuse/time-delay configurations. This capability supports larger motors while maintaining appropriate protection coordination. When selecting fuses and time-delay options, ensure coordination with upstream protections to optimize motor startup and fault isolation without compromising safety.
Yes. The DH227NGKV is UL Listed, and it includes a NEC 230.62 (C) compliant barrier, which helps ensure regulatory compliance during installation and inspection. The enclosure is rated NEMA 4, providing outdoor and damp environment protection. These certifications support safer installations in manufacturing floors, warehouses, and process lines, reducing risk during maintenance and audits.
This safety switch supports a fusible with neutral arrangement and is configured for a 3-wire system. It accommodates conductor sizes from #1/0 up to 750 kcmil Cu/Al across four lugs, enabling flexible integration with large feeders and motor leads. The 800 A rating and 240 V operation complement these wiring options, simplifying layout planning for feeders and motor branches in industrial panels.
The DH227NGKV delivers measurable uptime improvements by enabling fast, safe isolation of large electrical circuits and reducing unplanned downtime from faults. Its rugged NEMA 4 enclosure and UL NEC compliance streamline maintenance and audits, while broad horsepower and conductor support minimize part diversity. The result is lower spares carrying costs, faster maintenance cycles, and greater overall equipment reliability in production environments.