Eaton DH366FGK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH366FGK
Quick Summary
Eaton heavy duty fusible safety switch safely interrupts power in industrial control panels and service entrances. When large motors start or fault currents strike, space-constrained environments demand rugged protection that keeps downtime to a minimum. UL Listed certification, NEC 230.62 barrier compliance, and a NEMA 1 painted steel enclosure provide regulatory alignment and reliable enclosure protection. This DH366FGK model delivers 600 A capacity and supports up to 200, 400, or 500 hp at 240, 480, and 600 V, with Neutral Kit compatibility for service entrance use. Designed for installation efficiency and long-term maintenance savings, it aligns with typical control panels and motor feeders while offering straightforward serviceability.
Product Information
Extended Description
DH366FGK Eaton: Eaton Heavy duty single-throw fused safety switch, 600 A, NEMA 1, Painted steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 200, 400, 500 hp (3PH @240,480,600 V), (1)#2-(1)600 kcmil; and (1)#1/0-(1)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH366FGK
UPC
782113207551
Product Length/Depth
58 in
Product Height
12 in
Product Width
27.5 in
Product Weight
155 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 Kit installed
Enclosure
NEMA 1
Enclosure material
Painted 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
600A
HP rating - max
200, 400, 500 hp (3PH @240,480,600 V)
NEMA rating
NEMA 1
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature: 600 A amperage rating with three-pole, fusible without neutral configuration. Business impact: Enables reliable, high-current fault isolation for large motors and feeders, reducing arc energy and limit-switch wear. Application: Motor control centers and heavy-duty feeders in manufacturing lines where uptime matters. Feature: NEMA 1 painted steel enclosure. Business impact: Enhanced dust and environmental protection in industrial spaces, extending cabinet life and lowering enclosure maintenance. Application: Factory floors, switchgear rooms, and panel installations with moderate ingress risk. Feature: Class H fuse with fusible protection. Business impact: Superior interruption capability and fast clearing for high fault currents, supporting NEC compliance and safer shutdowns. Application: Heavy loads and critical loads in 600 V systems. Feature: Neutral Kit compatibility for service entrances. Business impact: Flexible integration into building power distribution with compliant service entrance configurations, minimizing retrofits. Application: Standalone service entrances and modular panel builds. Feature: Dimensions and weight (58 in L Ă— 27.5 in W Ă— 12 in H; 155 lb). Business impact: Predictable footprint for layout planning and easier field handling or replacement. Application: Retrofit projects and new installations where space planning is critical.
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FAQs
When installing the DH366FGK in a 600 V system, plan for a three-pole, fusible switch with Class H fuses and a NEMA 1 enclosure. Ensure proper clearance for the 58 inch length and 27.5 inch width, mount on a secure surface, and install the Neutral Kit only if service entrance operation is required. Verify NEC compliance and UL Listed labeling during commissioning.
Yes. The DH366FGK supports service entrance use with a Neutral Kit installed, as noted in its catalog notes. This enables safe grounding and neutral connection for building feeder applications, while maintaining UL Listed protection and three-wire, three-pole protection for motor feeders and electrical distribution.
The switch is rated for 600 A and 600 V. It supports up to 200, 400, or 500 hp for three-phase motors at 240, 480, and 600 V respectively. This makes it suitable for a range of high-power applications in heavy industry, from conveyors to large pumps, while maintaining robust fault isolation and safe shutdown behavior.
The DH366FGK carries UL Listed certification and uses a NEMA 1, painted steel enclosure. It complies with NEC 230.62 barrier requirements and is designed for service entrances with optional Neutral Kit installation. These features support regulatory compliance, safer external surfaces, and easier integration into established electrical assemblies.
The unit’s heavy-duty Class H fuse and rugged enclosure reduce arc wear and post-fault downtime, improving line reliability. Its 58 inch length and 155 lb weight enable long service intervals with straightforward field replacement. Combined with service-ready features and UL/NEMA compliance, users typically see lower maintenance costs and faster return on investment through fewer unplanned outages.