Eaton DH327NPKW Heavy-Duty Fusible Safety Switch - UL Listed
Part Number: DH327NPKW
Quick Summary
Eaton heavy duty fusible safety switch provides safe isolation for large electrical circuits in industrial settings. In critical operations, unreliable isolation can lead to arc-flash risk, costly downtime, and compliance gaps, so robust switching is essential. UL Listed certification and a NEMA 4 enclosure ensure reliable performance in harsh environments, while the Class L fuse provisions with neutral support precise protection. With 240 V operation, 800 A protection, and the ability to handle up to 250 hp on three-phase systems, this switch supports safe motor control, streamlined installation, and long service life in demanding facilities.
Product Information
Extended Description
DH327NPKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blade, 800 A, NEMA 4, Painted steel, Class L, Fusible with neutral, Three-pole, Four-wire, 240 V, Max Hp: 100, 250 hp (3PH @Std, TD)), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH327NPKW
UPC
782114357354
Product Length/Depth
14.25 in
Product Height
71.75 in
Product Width
25.38 in
Product Weight
213 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
For 2-pole applications; use outside poles of 3-pole switch
Enclosure
NEMA 4
Enclosure material
Painted 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
800A
HP rating - max
100, 250 hp (3PH @Std, TD))
NEMA rating
NEMA 4
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
800A protection at 240V for three-phase systems. This configuration enables safe interruption of high-horsepower loads with minimal arc energy, reducing unplanned downtime and enhancing operator safety in manufacturing environments. Ideal for large motor drives, pumps, and process lines where reliability is non-negotiable. The NEMA 4 painted-steel enclosure delivers weather-resistant protection, reducing the need for additional outdoor housings and enabling installation in exposed plant areas with confidence. Class L fuse provision with neutral provides selective, coordinated protection across feeders and motors, improving system stability and simplifying protection coordination studies during commissioning. With a three-pole, four-wire design and a footprint supporting control panels and switchgear, installation and service are straightforward for field technicians. The device weighs 213 lb and measures 71.75 in tall by 25.38 in wide, enabling secure mounting in standard industrial racks and enclosures. A one-year warranty from installation or 18 months from shipment adds business protection and support continuity. This product is UL Listed and designed for demanding industrial automation environments, aligning with plant reliability programs and safety standards.
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FAQs
This unit features a NEMA 4 weather‑resistant enclosure and a tall footprint (71.75 in high, 25.38 in wide, 14.25 in deep). Plan for adequate mounting clearance, secure anchoring for its 213 lb weight, and proper wiring access for the three-pole, four-wire configuration. Outdoor or harsh indoor deployments require weather protection and frost-free service environments.
The switch provides 800 A continuous protection at 240 V for three-phase systems. Its HP rating supports up to 100 HP (standard) and up to 250 HP (TD) depending on duty. With fusible protection and a neutral, it is well-suited for large motor drives and high‑inrush applications, ensuring safe isolation during fault conditions.
Catalog notes specify use for 2-pole applications by configuring or using only the outer poles of a 3-pole switch. When used in 2-pole setups, ensure appropriate neutral handling and protective coordination. This maintains proper fault isolation while preserving device integrity and compliance with protection schemes.
The DH327NPKW is UL Listed, offering recognized safety certification for electrical equipment. It also features a NEMA 4 enclosure rating, indicating suitability for weather-resistant installations. These attributes support compliance in many global markets and help streamline acceptance tests and safety audits in industrial facilities.
Plan for regular fuse maintenance and timely replacement of Class L fuses with neutral to maintain protection coordination. The unit’s robust enclosure and solid construction minimize maintenance intervals, while the UL Listed rating and durable steel enclosure support long service life in demanding environments. A one-year warranty (or 18 months from shipment) provides a predictable risk profile and support coverage.