Eaton heavy duty fusible safety switch DH364FRK - NEMA 3R
Part Number: DH364FRK
Quick Summary
Eaton heavy duty fusible safety switch provides reliable power interlock control for industrial panels and service entrances. In many facilities, unsafe isolation practices and unexpected outages threaten uptime and worker safety, making dependable switchgear essential. This model is UL Listed and housed in a durable NEMA 3R painted galvanized steel enclosure, with the option to add a Neutral Kit for service entrances. Its 200 A rating, Class H fuses, and three‑pole, three‑wire configuration support compliant protection, enable seamless integration with existing control systems while reducing maintenance costs. For engineers and procurement teams, the combination of rugged protection, installation flexibility, and proven performance translates to faster project punch lists and higher system reliability.
Product Information
Extended Description
DH364FRK Eaton: Eaton Enhanced visible blade single-throw safety switch, 200 A, NEMA 3R, Painted galvanized steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 50, 50/ 125, 150 hp (1/3PH @480, 600 V), #6-250 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH364FRK
UPC
782113206790
Product Length/Depth
30 in
Product Height
9.5 in
Product Width
18 in
Product Weight
40 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
200A
HP rating - max
50, 50/ 125, 150 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature: 200A amperage rating provides robust protection for feeders and motor circuits. Business Impact: Enables reliable short‑circuit isolation while minimizing nuisance trips, reducing unplanned downtime and extending equipment life. Application: Ideal for service entrances and panel feeders in mid‑ to large‑size industrial facilities. Feature: 600 V voltage rating and 3‑pole, 3‑wire configuration. Business Impact: Supports safe three‑phase distribution with clear, code‑compliant isolation points, improving maintenance workflows and protection coordination. Application: Motor control centers and distribution panels in harsh environments. Feature: NEMA 3R enclosure with painted galvanized steel. Business Impact: Delivers outdoor and semi‑indoor durability against weather, corrosion, and impact, lowering enclosure replacement costs. Application: Outdoor service entrances and exposed industrial installations. Feature: Fusible without neutral and Class H fuse provision. Business Impact: Enables selective coordination and fast fault clearing while keeping neutral paths optional, reducing system downtime. Application: Three‑phase protection in power distribution and motor circuits. Feature: Three poles and compatibility with Cu/Al conductors up to #6‑250 kcmil. Business Impact: Streamlines wiring, reduces cabinet space needs, and supports flexible feeder design for upgrades. Application: Large feeders and service entrance wiring in industrial plants. Feature: UL Listed and neutral kit compatibility for service entrance use. Business Impact: Facilitates regulatory compliance and installation ease, minimizing commissioning time. Application: New installations and retrofit projects in commercial/industrial facilities.
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FAQs
The DH364FRK is a three‑pole, three‑wire fusible safety switch rated at 200A and 600V, designed for standard service entrances and industrial panels. It accepts Cu/Al conductors up to #6‑250 kcmil and supports optional Neutral Kit installation. When used with UL Listed panels, it simplifies code compliance and reduces retrofit risk by aligning with common enclosure dimensions and terminal layouts.
Key specs include a 200A amperage rating, 600V voltage rating, three-pole configuration, and fusible operation without neutral using Class H fuses. The unit provides up to 50/125/150 hp ratings for motors (1/3PH at 480/600V). It features a NEMA 3R enclosure for outdoor use and UL Listing for electrical safety compliance.
Yes. It is designed for service entrance use when paired with a Neutral Kit. The 200A/600V ratings and UL Listed status support code-compliant service entrances, enabling reliable main isolation and protection for feeders feeding downstream equipment in commercial and industrial facilities.
The DH364FRK carries UL Listed certification and a NEMA 3R enclosure rating, indicating suitability for outdoor and semi‑indoor environments. It is designed for 600V systems, supports three‑phase, three‑wire configurations, and uses Class H fuses for reliable protection in heavy‑duty applications.
The product ships with Eaton’s warranty policy of one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance focuses on fuse replacement and enclosure cleanliness, while adhering to electrical codes for service entrances. The UL Listed status supports ongoing compliance and predictable lifecycle costs.