Eaton DG225NGK General Duty Safety Switch - UL Listed
Part Number: DG225NGK
Quick Summary
DG225NGK general duty cartridge fuse safety switch protects 240V circuits in industrial control panels. It helps address downtime and maintenance headaches by combining switching and fusing in a single, compact device. UL Listed, NEC 230.62 compliant barrier, and a NEMA 1 painted steel enclosure deliver dependable indoor protection and regulatory confidence. Designed for fast installation and long service life, it supports general duty protection across panelboards, control cabinets, and machine safety circuits. The unit also supports Class H fuses and a fusible-with-neutral configuration for coordinated protection, helping engineers balance cost and performance while reducing spare parts and maintenance visits.
Product Information
Extended Description
DG225NGK Eaton: Eaton general duty cartridge fuse safety switch, 400 A, NEMA 1, Painted steel, Class H fuses, Fusible with neutral, Two-pole, Three-wire, Category: general duty safety switch, 240 V
Product Name
Eaton general duty cartridge fuse safety switch
Catalog Number
DG225NGK
UPC
782113589497
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
Maximum hp ratings apply only when dual element fuses are used. 3-Phase hp rating shown is a grounded B phase rating, UL listed.
Enclosure
NEMA 1
Enclosure material
Painted steel
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
General duty, cartridge fused
Amperage Rating
400A
Fuse class provision
Class H fuses
Voltage rating
240V
Product Category
General duty safety switch
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DG225NGK
Feature → Business Impact → Application: Integrated two-pole general duty switch with fusible with neutral and Class H fuses reduces wiring complexity and accelerates fault isolation, enabling faster maintenance in panelboards and machine control circuits. This design supports reliable protection for 240V feeders in industrial setups, helping minimize unplanned downtime. Feature → Business Impact → Application: A 400A amperage rating at 240V handles high-load protections, enabling robust control of motors and power distribution while eliminating the need for separate fuses and mounting. Application spans control cabinets, switchgear bays, and industrial feeders. Feature → Business Impact → Application: Two-pole, three-wire with neutral ensures correct phasing and neutral distribution in 3-phase systems, reducing miswiring risk and simplifying commissioning in new builds or retrofits. Feature → Business Impact → Application: NEMA 1 painted steel enclosure provides indoor protection against dust and grime, streamlining installation in standard electrical rooms and factory environments. Feature → Business Impact → Application: UL Listed certification and NEC 230.62 barrier compliance support code-approved installations, speeding approvals and reducing risk during inspections in commercial and light-industrial facilities. Feature → Business Impact → Application: Catalog notes that HP ratings apply only with dual-element fuses guide correct protection coordination, preventing overrating or undersizing of protective devices in multi-motor applications.
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FAQs
Installation steps center on mounting the two-pole switch inside a suitable indoor enclosure, connecting the neutral as required for fusible operation, and ensuring a proper 240V supply. Verify NEC 230.62 barrier compliance and torque values per the Eaton specification sheet to guarantee safe, code-compliant operation and reliable fault isolation.
The 400A amperage rating indicates the maximum continuous current the switch can safely interrupt, while 240V is the operating voltage. This makes the DG225NGK suitable for protecting high-current feeders and motor circuits in general-duty applications, reducing the need for additional fusing equipment in many panelboard configurations.
Yes. The unit is a two-pole design with fusible neutral capability, supporting three-wire, three-phase with neutral installations. This arrangement simplifies wiring in 3-phase controls and helps maintain correct neutral grounding and fault protection in indoor electrical rooms.
The DG225NGK carries UL Listed certification and NEC 230.62 compliant barrier, with a NEMA 1 enclosure suitable for indoor use. These certifications help streamline approvals, ensure regulatory alignment, and support safe integration into commercial and light-industrial installations.
Expect reduced maintenance due to the integrated fuse and switch design, which minimizes wiring and potential fault points. Maintenance planning should consider periodic inspection of the Class H fuse elements, enclosure integrity, and verification of barrier compliance during routine electrical safety reviews to maximize uptime and return on investment.