Eaton DH225NGK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH225NGK
Quick Summary
Eaton heavy duty fusible safety switch provides reliable isolation for three-phase industrial power systems. In demanding production environments, downtime and safety penalties rise when disconnecting equipment isn't quick or safe. This model carries UL Listed certification, NEC 230.62 compliant barrier, and a rugged NEMA 1 enclosure, offering regulatory assurance and durable performance in shop floors and control panels. The DH225NGK supports two-pole, three-wire wiring with neutral and is rated for 400 A at 240 V, with HP ratings up to 50/125/50 on different phases and fuse types. By combining robust protection with straightforward installation, this switch helps streamline maintenance, improve energy control, and reduce total cost of ownership for industrial facilities.
Product Information
Extended Description
DH225NGK Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 400 A, NEMA 1, Neutral, Two-pole, Three-wire, 240 V, Max Hp: 50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc), (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH225NGK
UPC
782113207025
Product Length/Depth
7.27 in
Product Height
44.74 in
Product Width
23.08 in
Product Weight
120 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
3-Phase hp ratings shown are grounded B phase ratings; UL listed
Enclosure
NEMA 1
Enclosure material
Painted steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc)
NEMA rating
NEMA 1
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH225NGK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Fusible with neutral configuration (Class H) provides defined trip characteristics and safe fault isolation. Business Impact: Improves regulatory compliance and predictable downtime handling, reducing unplanned outages. Application: Motor circuits and large feeders in industrial control panels. Feature: 400 A at 240 V with three-wire, two-pole operation enables high-current isolation while maintaining a compact footprint. Business Impact: Enables safer de-energization of large equipment banks, lowering arc flash exposure and enabling faster maintenance. Application: Heavy-duty distribution panels and line-side protection. Feature: NEMA 1 painted steel enclosure delivers rugged indoor protection. Business Impact: Withstands dusty shop environments and simplifies installation in control rooms, reducing enclosure-related failures. Application: Assembly lines and manufacturing floors. Feature: UL Listed and NEC 230.62 compliant barrier, plus catalog notes on grounded B phase ratings. Business Impact: Strengthens regulatory documentation, procurement confidence, and cross-site standardization. Application: Electric distribution and safety-critical systems in compliant facilities. Feature: HP ratings max of 50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc) offers flexible motor control options. Business Impact: Supports scalable automation without swapping switchgear, lowering TCO. Application: Emergency stop and motor disconnects across diverse machines. Feature: Two-pole, fusible with neutral configuration supports 3-wire wiring and neutral connections. Business Impact: simplifies wiring schemes and reduces installation complexity, saving labor time. Application: Panel feeders and control circuits in manufacturing environments.
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FAQs
The DH225NGK features a two-pole, three-wire configuration with a neutral and fusible with neutral design. It supports standard fuse/time-delay protection and is compatible with (2) #1/0– (2) 300 kcmil or (1) #1/0– (1) 750 kcmil aluminum conductors, enabling flexible wiring for motor circuits and large feeders in control panels.
Rated for 400 A at 240 V, the switch provides max HP ratings of 50, 125, and 50 hp for 3-phase loads with standard fuse/time-delay protection and 250 Vdc where applicable. It features a NEMA 1 enclosure, UL Listing, and three-wire, two-pole operation suitable for industrial power distribution.
Yes. The device uses a NEC 230.62 compliant barrier, is UL Listed, and comes in a NEMA 1 enclosure. These certifications support safe installation in indoor electrical rooms and meet typical industrial safety and reliability requirements.
This switch is well-suited for large motor control centers, manufacturing lines, and industrial distribution panels that require reliable isolation and protection for 3-phase systems. Its heavy-duty design, neutral configuration, and high current rating support demanding environments and equipment protection strategies.
The product carries Eaton’s warranty policy (1 year from installation or 18 months from shipment, whichever occurs first). Documentation and datasheets are available via Eaton’s resources, including the specification sheet and product catalog notes, with UL certification and installation guidance included.