Eaton STS367UW3 Shunt Trip Safety Switch - UL Listed & cUL Certified
Part Number: STS367UW3
Quick Summary
Eaton STS367UW3 shunt trip safety switch provides rapid remote trip control for three-pole motor disconnects in commercial and industrial panels. Designers often struggle with meeting strict safety requirements while keeping maintenance simple and costs predictable. UL Listed and cUL Certified, along with a NEMA 4X enclosure and 304 stainless steel construction, ensure dependable protection in challenging environments. The device combines an 800 A rating with flexible coil voltages to support varied control schemes, while its robust build minimizes downtime and simplifies installation in new builds or retrofits. Additionally, compatibility with standard Eaton devices and downstream MCCs helps streamline procurement, inventory, and spares planning, delivering measurable business value through safer, more reliable plant protection.
Product Information
Extended Description
STS367UW3 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, 120 Vac, NEMA 4X, 304 stainless steel, Non-Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367UW3
UPC
786685830230
Product Length/Depth
12.43 in
Product Height
71.72 in
Product Width
29.54 in
Product Weight
158 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 cUL Certified
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
800A
Coil voltage
120 Vac
Protection
Non-Fusible
Voltage rating
600 Vac, 250 Vdc
The STS367UW3 delivers an 800 A amperage rating, engineered to carry heavy motor loads during startup. This capability reduces nuisance trips and protects downstream equipment, translating into higher line uptime and lower unplanned maintenance costs. Application-wise, it is ideal for motor control centers and large switchgear protecting pumps, conveyors, and compressors in industrial facilities. A broad voltage envelope with 600 VAC, 250 VDC main ratings and a 120 VAC coil voltage enables flexible control schemes and minimizes cross-wiring, simplifying panel design and wiring labor. It is well-suited for multi-voltage installations and retrofit projects where coil and main voltages differ across equipment. The NEMA 4X enclosure paired with 304 stainless steel construction provides corrosion resistance and washdown capability, extending service life in damp, dusty, or chemical environments. This makes it suitable for outdoor installations, food and beverage, and chemical processing facilities requiring rugged protection. The non-fusible protection offers straightforward, predictable disconnection, supporting safer maintenance, reducing fuse stock management, and aligning with standard shutdown procedures across industrial plants. Finally, the three-pole design with ready compatibility to Eaton's protection ecosystem streamlines installation, spare parts availability, and system coordination with upstream protection devices, ensuring smooth integration in Eaton-based MCCs, downstream switchgear, and new builds needing robust remote-tripping capability.
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FAQs
Yes. The STS367UW3 is a three-pole shunt trip device with a 120 VAC coil, designed to integrate with standard MCCs and downstream protection schemes. It supports common control wiring practices and simplifies retrofits in existing protection architectures.
The switch is rated for 800 A with a main voltage of 600 VAC and 250 VDC, and a control coil of 120 VAC. This combination provides versatile operation across diverse industrial circuits and control environments.
Yes. The unit features a NEMA 4X enclosure constructed from 304 stainless steel, delivering corrosion resistance and washdown capability suitable for outdoor installations and damp or dusty areas.
STS367UW3 is UL Listed and cUL Certified, ensuring compliance with recognized safety standards. These certifications support regulatory approvals, risk management, and safer procurement decisions for industrial facilities.
Because STS367UW3 is non-fusible, maintenance focuses on periodic functional testing, wiring integrity, and enclosure cleanliness. Its rugged 304 stainless steel construction and UL/cUL certifications help minimize unplanned downtime and support predictable lifecycle costs.