Eaton DH363FRK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH363FRK
Quick Summary
DH363FRK is a heavy duty fusible safety switch designed to provide reliable overcurrent protection for industrial control panels and service entrances. The three-pole, three-wire design simplifies wiring while delivering strong fault isolation and long-term durability. For engineers facing frequent downtime or complex maintenance, the Eaton solution offers straightforward installation, robust enclosure protection, and predictable performance. Two critical standards support field compliance: UL Listed safety certification and a NEMA 3R enclosure rating that enables outdoor and damp locations installations. When paired with a Neutral Kit, it becomes suitable for service entrances, enabling code-compliant feeder protection with easy neutral integration. This unit supports up to 75 hp at 480–600 V, making it versatile for motor-driven processes and line-side protection.
Product Information
Extended Description
DH363FRK Eaton: Eaton Enhanced visible blade single-throw safety switch, 100 A, NEMA 3R, Painted galvanized steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH363FRK
UPC
782113206424
Product Length/Depth
22.5 in
Product Height
9 in
Product Width
12.75 in
Product Weight
21 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
Catalog Notes
Suitable for service entrance use with a Neutral Kit installed
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature → Amperage rating of 100 A provides precise overcurrent protection, reducing conductor damage and nuisance trips; Business Impact → Improves uptime and protects equipment cost-effectively; Application → Suitable for feeders and motor circuits up to 75 hp at 480–600 V. Feature → NEMA 3R enclosure with painted galvanized steel resists weather and corrosion; Business Impact → Enhances outdoor reliability and safety with minimal maintenance; Application → Service entrances and exposed installations in harsh environments. Feature → Class H fuse provision with fusible without neutral configuration; Business Impact → Enables selective protection and easy fuse replacement, lowering downtime during maintenance; Application → Industrial controls and power distribution panels. Feature → Neutral Kit compatibility for service entrance use; Business Impact → Simplifies integration into building feeds and meets code requirements; Application → New builds and retrofits where neutral routing is necessary. Feature → UL Listed certification supporting regulatory compliance; Business Impact → Streamlines procurement, reduces audit findings, and facilitates compliance-driven projects; Application → Electrical distribution systems across manufacturing and facilities.
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FAQs
DH363FRK is a three-pole, three-wire device rated for 600 V and 100 A, with a fusible Class H arrangement and a NEMA 3R enclosure. It supports service entrances when a Neutral Kit is installed, making it suitable for outdoor enclosures, industrial control panels, and feeder applications. Ensure conductor sizes fall within #14–#1/0 Cu/Al and verify compatibility with your panel bus arrangement.
The DH363FRK offers a 100 A amperage rating, 600 V voltage rating, and maximum horsepower protection of 30/40/60/75 hp (1/3 HP at 480/600 V). It is a three-pole, three-wire unit with fusible without neutral and a Class H fuse. The enclosure is NEMA 3R, and it carries UL Listed certification, suitable for service entrances with an optional Neutral Kit.
Yes. With a Neutral Kit installed, the DH363FRK is appropriate for service entrances. Its UL Listed status and NEMA 3R enclosure make it suitable for outdoor and damp locations, providing safe isolation and reliable protection for feeders and motors up to 75 hp at 480–600 V in industrial facilities.
The DH363FRK carries UL Listed certification for safety compliance and a NEMA 3R enclosure rating for outdoor/damp environment protection. The product is designed for heavy duty fusible service with a Class H fuse and fusible without neutral configuration, intended for robust industrial applications and code-compliant installations.
Consider a Neutral Kit for service entrance use, which expands application flexibility and code compliance. The 100 A rating and 600 V capability support motors up to 75 hp, reducing drivetrain risk and downtime. The durable galvanized steel enclosure lowers corrosion-related maintenance, while UL Listing streamlines procurement and regulatory audits, contributing to lower total cost of ownership.