Eaton DH227NWK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH227NWK
Quick Summary
Eaton heavy duty fusible safety switch provides reliable power isolation for industrial control panels and motor circuits in rugged environments. Downtime during fuse changes and safety compliance often drives maintenance costs and reduces plant availability; this unit is engineered to facilitate fast, safe disconnections with minimal risk. It carries UL Listed certification, a NEMA 4X stainless enclosure, and Class L fuse provision, underscoring readiness for harsh environments. With 800A at 240V and robust 3-phase HP ratings, this switch supports dependable motor control while delivering clear business value through reliability, safety, and reduced lifecycle costs. Field technicians appreciate straightforward wiring for two-pole, three-wire configurations with a neutral, enabling quicker commissioning and fewer installation pitfalls.
Product Information
Extended Description
DH227NWK Eaton: Heavy Duty Safety Switch, Single-Throw, 800A, 240V, Two-pole, Three-wire, Fusible with neutral, NEMA 4X, Stainless steel, Class L fuses, 100 hp at 240 Vac Std. 3 Ph, 250 hp at Vac TD 3 Ph
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH227NWK
UPC
782113589770
Product Length/Depth
12.75 in
Product Height
71.75 in
Product Width
24.9 in
Product Weight
0.01 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.
Certifications
UL Listed
Catalog Notes
3-Phase hp ratings shown are grounded B phase ratings; UL listed
Enclosure
NEMA 4X
Enclosure material
Stainless steel
Fuse class provision
Class L fuses
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Single-Throw
Amperage Rating
800A
HP rating - max
100 at 240 Vac Std. 3 Ph, 250 at Vac TD 3 Ph
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature → Business Impact → Application: Heavy duty fusible switch design delivers reliable circuit isolation for demanding industrial environments, reducing unplanned downtime and improving safety compliance on critical motor circuits across manufacturing lines and bulk material handling. Application: Use in control panels and remote motor starters where 3-phase loads must be safely disconnected during maintenance. Feature → Business Impact → Application: NEMA 4X stainless steel enclosure provides corrosion resistance and washdown compatibility, extending service life in harsh environments and reducing enclosure maintenance costs. Application: Suitable for outdoor and demanding indoor installations in food processing, water treatment, and pulp and paper facilities. Feature → Business Impact → Application: Fusible with neutral configuration supports precise fault isolation while preserving system neutral integrity, enabling compliant power distribution in complex machines. Application: Ideal for panel builders integrating Class L fuses in 240V 3-phase systems. Feature → Business Impact → Application: Two-pole, three-wire design simplifies wiring schemes and reduces installation time, delivering faster commissioning and lower labor costs. Application: Great for new builds or retrofits where space permits standard 12.75 in depth and 24.9 in width packages. Feature → Business Impact → Application: 800A amperage rating and 100 hp at 240V Std. 3 Ph with 250 hp at TD 3 Ph HP ratings ensure strong motor protection and scalable performance. Application: Industrial conveyors, pumps, and fans requiring reliable isolation under peak load.
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FAQs
DH227NWK is a two-pole, three-wire unit with fusible neutral configuration, designed to drop into standard low-voltage protection schemes. It supports 240V 3-phase service and Class L fuses, simplifying retrofits by matching common panel footprints and enabling straightforward wiring with neutral and ground references for safe, code-compliant isolation.
The switch is rated for 800A and 240V, with 100 hp at 240V standard 3-phase, and 250 hp in rated TD 3-phase service. This combination supports heavy motor loads while ensuring selective protection and reliable fault isolation, reducing the risk of nuisance trips in demanding equipment like conveyors and pumps.
DH227NWK is UL Listed and ships in a NEMA 4X stainless steel enclosure, providing corrosion resistance and suitability for washdown environments. The UL Listing signals compliance with safety standards, while the NEMA 4X rating assures protection against moisture, dust, and corrosion in harsh industrial settings.
Common applications include control panels, motor control centers, and outdoor equipment in manufacturing, water treatment, and processing facilities. The unit’s 800A 240V rating and fusible-with-neutral configuration make it suitable for isolating large 3-phase loads while maintaining service continuity for adjacent equipment.
Warranty is the Eaton Selling Policy 25-000, covering one year from installation or eighteen months from shipment, whichever occurs first. Eaton also provides specification sheets and catalogs to support installation, along with field service and technical support resources to assist with commissioning, integration, and maintenance.