Eaton STS366FW6 Shunt Trip Safety Switch - UL Listed
Part Number: STS366FW6
Quick Summary
The Eaton STS366FW6 shunt trip safety switch provides remote tripping control for electrical feeders in industrial panels. Maintenance teams often face delays and safety risks when shutting down energized circuits for service, especially under tight production schedules. UL Listed and cUL Certified, this unit also features a rugged NEMA 4X stainless steel enclosure for harsh environments. With a 24 Vdc coil, 600 A rating, and a three-pole design, it delivers reliable isolation without compromising control. By integrating this device into existing protection schemes, contractors can boost safety, accelerate changeouts, and meet regulatory requirements, while minimizing nuisance trips and optimizing overall panel performance.
Product Information
Extended Description
STS366FW6 Eaton: Eaton shunt trip safety switch, 600 A, Three-pole, 600 Vac, 250 Vdc, 24 Vdc, NEMA 4X, 304 stainless steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS366FW6
UPC
786685828893
Product Length/Depth
12.43 in
Product Height
62.97 in
Product Width
28.29 in
Product Weight
145 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
cUL Certified UL Listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
600A
Coil voltage
24 Vdc
Protection
Fusible
Voltage rating
600 Vac, 250 Vdc
Feature: Three-pole design delivers reliable power control and balanced switching across phases. Business impact: Reduces switching transients and simplifies wiring, shortening commissioning time and lowering fault paths. Application: Ideal for motor control centers and panel boards in manufacturing environments. Feature: Amperage rating of 600 A supports large feeders and high-load circuits. Business impact: Enables a single device to protect main buses, reducing parts count and maintenance complexity. Application: Suitable for warehouses, data centers, and process industries with heavy electrical loads. Feature: 24 Vdc coil enables rapid remote tripping wired to control circuits. Business impact: Improves response time and reduces control wiring complexity. Application: Works with standard 24 Vdc control circuits and safety interlock systems. Feature: NEMA 4X enclosure in 304 stainless steel resists corrosion and water ingress. Business impact: Extends service life in washdown areas and outdoor installations. Application: Suitable for food & beverage, chemical, and outdoor electrical rooms. Feature: Fusible protection provides selectivity and fuse coordination with upstream devices. Business impact: Reduces arc flash risk and ensures safe disconnection. Application: Aligns with plant protection schemes and UL/cUL compliance. Feature: UL Listed and cUL Certified recognition simplifies audits. Business impact: Facilitates procurement and demonstrates compliance across regions. Application: Integrates with Eaton protection products and existing control panels.
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FAQs
Install the three-pole device in the panel’s main feeder section, connect the 24 Vdc coil wiring to the control circuit, and integrate the shunt trip line with the protection scheme. Ensure the enclosure is sealed to maintain NEMA 4X integrity and observe weight handling and mounting guidelines from the Eaton specification sheet.
Key specs include 600 A amperage rating, three poles, 24 Vdc coil voltage, voltage ratings of 600 Vac / 250 Vdc, and fusible protection. It is designed for NEMA 4X enclosures and uses a 304 stainless steel body to withstand harsh environments.
Yes. The NEMA 4X enclosure combined with 304 stainless steel construction provides corrosion resistance and ingress protection suitable for outdoor and washdown environments commonly found in manufacturing facilities.
The unit is UL Listed and cUL Certified, ensuring compliance with multiple safety and regulatory standards for industrial electrical protection and control applications.
It enables rapid remote shutdown, reducing downtime during maintenance, improving worker safety, and supporting compliance audits. This can lower overall maintenance costs and improve uptime in critical processes.