Eaton DH225FRK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH225FRK
Quick Summary
The Eaton DH225FRK heavy duty fusible safety switch provides reliable current protection for 240 V power circuits. For engineers facing downtime from nuisance trips and complex service entrances, this unit offers a rugged solution with a clear installation path. It is UL Listed and NEC 230.62 compliant, with a NEMA 3R enclosure that protects against weather and debris. Suitable for service entrances with a neutral or ground lug kit installed, it also supports field-installed neutral in grounded B phase systems. Together with its robust ratings and compact integration, it delivers meaningful business value by simplifying procurement, ensuring compliance, and reducing maintenance costs for motor control and power distribution.
Product Information
Extended Description
DH225FRK Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 400 A, NEMA 3R, Two-pole, Two-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
DH225FRK
UPC
782114001981
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
Suitable for service entrance use with a neutral or ground lug kit installed. Hp ratings apply only when neutral is field installed and switch is used on a grounded B phase system.
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Two-pole
Number of wires
2
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 3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: Amperage rating of 400 A provides strong protection for large motors and feeders, reducing the risk of costly outages and equipment damage, enabling reliable production lines and lower lifecycle costs. This is crucial for metal fabrication, printing, and process industries that require continuous operation and fast protection actions. Feature → Business Impact → Application: HP ratings up to 50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc) support diverse motor loads, allowing a single switch to cover multiple applications and spare parts inventories, improving procurement leverage and service readiness for OEMs. Feature → Business Impact → Application: NEMA 3R enclosure and painted galvanized steel construction offer weather resistance and robust mechanical protection, enabling safe outdoor installation and reducing enclosure retrofit needs in harsh industrial environments. Feature → Business Impact → Application: Two-pole, fusible-without-neutral configuration simplifies wiring and reduces material costs on line-side protection, ideal for compact service entrances and standalone motor feeders in manufacturing plants. Feature → Business Impact → Application: Class H fuse provision and observed fuse compatibility ensure consistent protection coordination with standard fuses, minimizing nuisance trips and improving system reliability in critical power distribution setups. Feature → Business Impact → Application: Service entrance suitability with optional neutral or ground lug kit installed (and field-installed neutral support) streamlines code-compliant integration for new builds and plant expansions, reducing installation time and documentation effort.
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FAQs
The DH225FRK is designed for service entrances with the option of a neutral or ground lug kit. When installing, verify field-installed neutral on grounded B phase systems and ensure the enclosure remains weather-protected by the NEMA 3R rating. Wire per NEC requirements and confirm fuse coordination with the load to minimize nuisance trips.
The DH225FRK provides 400 A amperage rating and 240 V voltage, with two-pole operation. It supports HP ratings up to 50, 125, 50 hp (3PH @ Std fuse/time delay/250 Vdc). It uses Class H fuses and is fusible without neutral, offering flexible protection for motor and feeder circuits.
Yes. The enclosure is NEMA 3R, constructed from painted galvanized steel, providing weather resistance and protection against environmental factors. This makes it suitable for outdoor installations and harsh industrial environments when properly installed and maintained.
The DH225FRK is UL Listed and complies with NEC 230.62 barrier requirements. The combination of UL listing and barrier compliance helps ensure code conformance for service entrances and protects personnel during maintenance and operation.
By reducing downtime through reliable overload protection, simplifying wiring with neutral/ground lug options, and minimizing spare parts for motor feeders, the DH225FRK lowers maintenance costs and procurement complexity. Its durable enclosure and field-installable neutral capability support long-term reliability in production environments.