Eaton DH227NPKW Heavy-Duty Fusible Safety Switch - NEMA 3R
Part Number: DH227NPKW
Quick Summary
Eaton heavy duty fusible safety switch DH227NPKW provides reliable isolation for high-power electrical systems in industrial settings. When downtime is costly, operators need a durable, easy-to-inspect switch that supports fast, safe disconnection during maintenance. UL Listed, NEC barrier-compliant (NEC 230.62) and a NEMA 3R painted galvanized enclosure deliver enterprise-grade safety, while Class L fuse provision and a windowed blade aid compliance and inspection. This solution pairs rugged protection with install-and-operate simplicity, helping reduce unplanned outages and maintenance costs. For industrial safety switches and power-control applications, it supports reliable performance, straightforward sourcing, and scalable protection across facilities.
Product Information
Extended Description
DH227NPKW Eaton: Eaton Heavy duty single-throw fused safety switch, 800 A, NEMA 3R, Painted galvanized 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 Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH227NPKW
UPC
786680181689
Product Length/Depth
12.84 in
Product Height
55.82 in
Product Width
24.91 in
Product Weight
162 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). Window & Visible Blade
Enclosure
NEMA 3R
Enclosure material
Painted galvanized 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 - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature 800A amperage rating with 240V nominal (600V max) power handling → Business Impact Ensures capability to safely interrupt large motor loads and feeders, reducing nuisance trips and enabling predictable startup sequences. Application Heavy commercial and industrial drives with high fault currents benefit from predictable performance and fast isolation. Long-tail keywords: 800A safety switch, 240V fusible switch, high-current industrial disconnect. Paragraph 2: Enclosure is a NEMA 3R, painted galvanized steel housing → Business Impact Provides outdoor and semi-exposed environment resilience, minimizing corrosion risk and maintenance costs. Application Outdoor motor control and harsh indoor spaces gain reliable protection; compatible with harsh environments. Long-tail keywords: NEMA 3R enclosure, weather-resistant safety switch. Paragraph 3: Fuse configuration is fusible with neutral and Class L provision → Business Impact Supports code-compliant overcurrent protection and neutral conductor integration, reducing panel space and wiring complexity. Application Suitably integrated into motor circuits and distribution panels. Long-tail keywords: Class L fuse, fusible with neutral, fuse-provision. Paragraph 4: Two-pole, three-wire design with window and visible blade → Business Impact Improves operator visibility and safe disconnection verification, lowering commissioning time and misoperation risk. Application Ideal for standalone disconnects and quick servicing in line-side applications. Long-tail keywords: two-pole safety switch, visible blade, disconnect with window. Paragraph 5: Performance ratings and certifications (UL Listed, NEC barrier compliance) → Business Impact Helps meet regulatory requirements, simplify audits, and support warranty claims. Application Industrial facilities pursuing formal safety programs will benefit from established standards. Long-tail keywords: UL Listed safety switch, NEC barrier compliance, industrial compliance. Paragraph 6: HP rating up to 100–250 hp (3PH @ std fuse/time delay) with 4 #1/0 to (4) 750 kcmil Al connections → Business Impact Enables direct motor connections with scalable protection, reducing need for intermediaries. Application Heavy motor loads in process lines and pumps are efficiently isolated. Long-tail keywords: HP rating 250, motor protection, heavy-duty disconnect.
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FAQs
DH227NPKW is designed for heavy industrial use with a 12.84 in depth, 24.91 in width, and 55.82 in height footprint, accommodating standard panel cutouts and wiring practices. It supports 3-wire configurations, fusible with neutral, and a two-pole design for straightforward integration into control panels or MCCs, enabling quick field customization while preserving code compliance.
The DH227NPKW provides an 800 A amperage rating and a nominal 240 V operating voltage, with a maximum voltage rating of 600 V. It is a two-pole, three-wire fusible safety switch designed for heavy-duty motor and feeder protection in industrial environments, with a horsepower rating up to 250 hp at standard fuse/time delay.
Yes. The DH227NPKW is intended for heavy commercial and industrial applications, including motor control and distribution in challenging environments. Its NEMA 3R enclosure, painted galvanized steel construction, windowed blade, and UL-listed status support reliable operation, easy inspection, and long service life in MCCs, outdoor spaces, and production floors.
This switch is UL Listed and features a NEC barrier compliant design (NEC 230.62(C)), backed by a NEMA 3R enclosure. These certifications help you meet safety and electrical-code requirements, streamline audits, and support warranty claims while providing confidence in isolation performance during startup and maintenance.
The DH227NPKW carries Eaton’s warranty policy of one year from installation or eighteen months from shipment, whichever comes first. Maintenance needs center on routine visual checks of the window, fuse status, and enclosure integrity. Its rugged design and standardized components minimize spare parts, reduce downtime, and improve total cost of ownership for facilities with high-load protection needs.