Eaton DH365NPK Heavy Duty Fusible Safety Switch - NEMA 4
Part Number: DH365NPK
Quick Summary
Eaton DH365NPK heavy duty fusible safety switch isolates three-phase power quickly and safely for industrial facilities. For engineers balancing uptime with safety, wiring complexity and enclosure protection can slow projects and increase risk. UL Listed and housed in a NEMA 4 painted steel enclosure, it uses Class H fuses with neutral and supports 600 V, 400 A configurations. Its robust HP ratings of up to 250 and 350 hp (3PH at 480/600 V) with a four-wire setup make it a practical choice for modern motor control centers, enabling safer, more reliable plant operation and easier preventative maintenance.
Product Information
Extended Description
DH365NPK Eaton: Eaton Enhanced visible blade single-throw safety switch, 400 A, NEMA 4, Painted steel, Class H, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0-(2)300 kcmil; or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH365NPK
UPC
782114357385
Product Length/Depth
11.2 in
Product Height
57.47 in
Product Width
22.66 in
Product Weight
125 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
Enclosure
NEMA 4
Enclosure material
Painted steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 4
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature: 400 A amperage rating at 600 V. Business Impact: Enables fewer devices in parallel and reduces wiring complexity while handling high demand motors reliably. Application: Large industrial drives and motor control centers seeking efficient protection. Feature: NEMA 4 enclosure in painted steel. Business Impact: Delivers outdoor and washdown suitability with minimal corrosion risk, lowering maintenance costs and downtime. Application: Outdoor equipment yards, manufacturing floors, and exposed installations. Feature: Three-pole, four-wire with neutral configuration. Business Impact: Simplifies wiring, improves fault isolation, and supports compliant neutrals in MCCs. Application: Complex motor circuits and panel assemblies requiring precise fault clearing. Feature: Fusible with Class H fuse. Business Impact: Clear, coordinated protection with easy fuse replacement, reducing nuisance trips and improving safety. Application: Power distribution networks with strict fuse coordination. Feature: UL Listed and robust HP ratings. Business Impact: Ensures regulatory compliance and reliability across up to 250 and 350 hp loads, improving ROI through reduced downtime. Application: High performance packaging lines, metal fabrication, and process controls. Feature: Documentation and compatibility. Business Impact: Clear catalog references and compatibility with 4-wire 600 V systems streamline procurement and field installation. Application: Field installs in existing plant infrastructure with minimal modification. Weight and dimensions support sturdy mounting and serviceability, aiding maintenance planning and crane assisted installation when needed.
Get a Quick Quote for a Eaton DH365NPK
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DH365NPK?
Enquire Now
FAQs
Installation requires a suitable 125 lb rated mounting surface, with available space for an 11.2 in depth, 22.66 in width and 57.47 in height enclosure. Ensure three-pole, four-wire connections with neutral are correctly wired to the motor control center. The unit is UL Listed and designed for 600 V applications, simplifying field wiring and reducing commissioning time.
Key specs include a 400 A amperage rating, 600 V voltage rating, three-pole design with four wires, fusible with neutral, Class H fuse, and NEMA 4 enclosure. Maximum horsepower ratings are 250 and 350 hp for 3-phase services at 480/600 V, making it suitable for demanding motor control and protection tasks.
Yes. The unit features a NEMA 4 painted steel enclosure, providing protection against dust, water, and washdown environments. This makes it appropriate for outdoor installations or facilities with rigorous cleaning regimes, while maintaining robust protection for interior components and fusing assemblies.
The DH365NPK is UL Listed, indicating compliance with recognized safety standards for electrical protection devices. The NEMA 4 enclosure further reinforces suitability for challenging environments. While CE and IP specifics are not listed here, UL Listing and enclosure rating provide essential regulatory alignment for most industrial deployments.
Warranty is defined by Eaton policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. Maintenance typically involves periodic fuse inspection and replacement, ensuring neutral conductors remain intact. The device is designed for long term reliability in harsh environments, contributing to lower total cost of ownership through reduced unplanned downtime.