Eaton heavy duty fusible safety switch DH423FGK - UL Listed
Part Number: DH423FGK
Quick Summary
Eaton heavy duty fusible safety switch provides safe isolation for industrial motors and equipment. This 100 A, four-pole device is designed for reliable motor control in demanding environments, reducing risk during startup and maintenance. A UL Listed, NEMA 1 painted steel enclosure safeguards personnel and components, while Class H fuses and a fusible-without-neutral configuration deliver robust protection for motors up to 15, 15/30, 30/20 hp in standard and DC applications. This combination supports faster maintenance, easier upgrades to motor control centers, and long-term lifecycle cost efficiency, making it a practical choice for automation and electrical protection programs.
Product Information
Extended Description
DH423FGK Eaton: Eaton Heavy duty single-throw fused safety switch, 100 A, NEMA 1, Painted steel, Class H, Fusible without neutral, Four-pole, Four-wire, 240 V, Max Hp: 15, 15/ 30, 30/ 20 hp (1,3PH @Std/TD/250 Vdc), 600 V, #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH423FGK
UPC
782113206288
Product Length/Depth
26 in
Product Height
8 in
Product Width
19 in
Product Weight
34 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 1
Enclosure material
Painted steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Four-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
15, 15/ 30, 30/ 20 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 1
Voltage - max
600 V
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature 100 A amperage rating → Business Impact A robust protection level minimizes nuisance trips and equipment damage in high-load applications. Application Suitable for conveyors, pumps, and presses in manufacturing lines where reliability and continuity are critical. Feature Four-pole, four-wire configuration → Business Impact Ensures correct three-phase control and isolation, simplifying wiring and enabling safe motor shutdown. Application Ideal for three-phase motor drives in automation setups. Feature NEMA 1 enclosure, painted steel → Business Impact Indoor protection reduces corrosion and exposure risk, supporting longer service life in factory environments. Application Suitable for enclosed control rooms and dry industrial spaces. Feature Class H fuse provision, fusible without neutral → Business Impact High fault-current capacity with straightforward fuse replacement lowers downtime and maintenance costs. Application Fits standard Class H fuses and simplifies spare-part handling in service inventories. Feature 240 V rating, 600 V max, Cu/Al conductors (#14-#1/0) → Business Impact Broad compatibility with common plant voltages and conductor sizes, reducing design complexity. Application Applicable to standard 240 V and higher voltage DC or AC motor circuits. Feature 26 in L × 19 in W × 8 in H, 34 lb → Business Impact Manageable footprint and weight support easy installation and integration into existing switchgear layouts. Application Fits typical floor or wall-mounted installations in machine centers and switch rooms.
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FAQs
DH423FGK is designed for NEMA 1 indoor enclosures and a four-pole, four-wire setup. It accepts Cu/Al conductors in sizes #14 through #1/0 and supports three-phase motor control. For retrofit projects, confirm enclosure dimensions (26 in L × 19 in W × 8 in H) fit the panel opening and maintain proper clearance for safe operation.
This safety switch is UL Listed, ensuring compliance with recognized safety standards for electrical protection devices. It uses a NEMA 1 enclosure and Class H fuse provisions for reliable plant protection. While CE is not specified in the data, UL Listed status provides strong certification alignment for many industrial audits and approvals.
The 100 A rating provides a robust disconnect and fault isolation point for motors up to 15, 15/30, 30/20 hp across standard and DC configurations. Class H fusing offers proven interrupting capability, while fusible-without-neutral design supports four-wire three-phase circuits, reducing the risk of under-fused or over-fused conditions in line-start applications.
Yes. DH423FGK supports 240 V nominal operation with a maximum 600 V rating, making it compatible with common automation line voltages and motor circuits. Its four-pole design and four-wire configuration simplify integration into standard control schemes and ensure proper phase isolation for safe maintenance.
The device’s fuse-protected design with Class H provisions reduces downtime from short circuits and facilitates straightforward fuse replacements. The rugged painted steel enclosure and UL Listed certification support durable field service, while the 26 × 19 × 8 inch footprint eases retrofits in existing switchgear, contributing to lower lifecycle costs and predictable maintenance planning.