Eaton DH366FWK316 Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH366FWK316
Quick Summary
Heavy duty fusible safety switch is a high-capacity power interrupt for 3-phase industrial systems on demanding production lines. The device addresses downtime and maintenance challenges caused by corrosion, harsh environments, or improper fuse configuration. It also reinforces safety and regulatory compliance with UL Listed certification, NEC barrier requirements, and a rugged NEMA 4X enclosure in 316 stainless steel. By pairing a 600 A/600 V rating with Class H fuses, this solution delivers reliable motor control and protection, reducing unplanned outages. For integrators and operators, the Eaton DH366FWK316 translates to faster setup, easier serviceability, and long-term operating cost reductions in harsh industrial settings.
Product Information
Extended Description
DH366FWK316 Eaton: Heavy Duty Safety Switch, Single-Throw, 600A, 600V, Three-pole, Three-wire, Fusible without neutral, NEMA 4X, Grade 316 stainless steel, Class H fuses, 200 hp at 240 Vac TD 3 Ph, 400 hp at 480 Vac TD 3 Ph, 500 hp at 600 Vac TD 3 Ph
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH366FWK316
UPC
782116490028
Product Length/Depth
12.75 in
Product Height
63 in
Product Width
23 in
Product Weight
0.01 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
Enclosure
NEMA 4X
Enclosure material
316 stainless steel
Fuse class provision
Class H fuses
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Single-Throw
Amperage Rating
600A
HP rating - max
200 at 240 Vac TD 3 Ph, 400 at 480 Vac TD 3 Ph, 500 at 600 Vac TD 3 Ph
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: 316 stainless steel, NEMA 4X enclosure provides corrosion resistance and wash-down readiness, reducing maintenance cycles and extending service life in chemical, food & beverage, and outdoor facilities. This enables safer operation with minimal downtime in harsh environments. Feature → 600 A, 600 V amperage/voltage rating and three-pole, fusible without neutral configuration support high-power motor control while enabling selective protection; this reduces fault energy and improves system availability in packaging lines and metal forming. Feature → Class H fuses with fusible non-neutral configuration delivers fast fault interruption while supporting easy replacement; the result is lower downstream damage and quicker restoration after a fault, ideal for large conveyors and fans. Feature → UL Listed and NEC 230.62 barrier compliance ensures regulatory and safety standards are met, simplifying audits and project approvals for industrial facilities and water/wastewater plants. Feature → 12.75 in depth, 23 in width, 63 in height footprint accommodates large fuse blocks and wiring, enabling straightforward installation and future expandability in plant electrical rooms. Feature → 200 HP at 240 VAC TD 3 Ph; 400 HP at 480 VAC TD 3 Ph; 500 HP at 600 VAC TD 3 Ph confirms suitability for a wide motor load range, supporting multi-voltage applications and reducing the need for multiple switchgear purchases.
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FAQs
DH366FWK316 is a three-pole, three-wire fusible switch rated for 600 A at 600 V, designed for 3-phase power systems. It supports fusible without neutral and uses Class H fuses, simplifying retrofits or new builds while ensuring safe, code-compliant interrupt capability in existing assemblies.
The enclosure is rated NEMA 4X and constructed from 316 stainless steel, making it resistant to corrosion and suitable for wash-down or outdoor environments. Plan for adequate mounting clearance, proper sealing around wiring, and accessible fuse replacement so maintenance is efficient without compromising enclosure integrity.
The DH366FWK316 is UL Listed and complies with NEC 230.62 (C) barrier requirements. It features a corrosion-resistant 316 stainless steel enclosure with a NEMA 4X rating, providing regulatory confidence for safety audits and customer specifications in industrial facilities.
The device supports motor loads of up to 200 HP at 240 V, 400 HP at 480 V, and 500 HP at 600 V under TD 3-phase conditions. This makes it suitable for large motors in process lines, pumps, and blowers, enabling a single switch solution across multiple voltage levels.
UL listing and rugged 316 stainless steel construction reduce corrosion-related downtime, while Class H fuses provide reliable protection with straightforward replacement. The result is lower maintenance costs, less unplanned downtime, and a faster return on investment in facilities with harsh environments and high-power motors.