Eaton STS367UW61 Shunt Trip Safety Switch - UL Listed, NEMA 4X
Part Number: STS367UW61
Quick Summary
The Eaton STS367UW61 shunt trip safety switch protects motors and feeders by rapidly tripping on fault conditions in industrial MCCs. This design minimizes downtime and reduces the risk of thermal damage from overloads and short circuits. UL Listed and cUL Certified support regulatory compliance, while the 304 stainless steel, NEMA 4X enclosure enables reliable operation in washdown and harsh environments. With 800 A capacity and a 24 Vdc coil, this unit delivers robust protection in demanding applications, while the 1 NO 1 NC contact configuration supports flexible control logic and integration into existing safety circuits.
Product Information
Extended Description
STS367UW61 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, Alarm switch, 24 Vdc, 1 NO 1 NC, NEMA 4X, 304 stainless steel, Non-Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367UW61
UPC
786685830278
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
24 Vdc
Protection
Non-Fusible
Voltage rating
600 Vac, 250 Vdc
Contact configuration
1 NO 1 NC
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - STS367UW61
Feature → Business Impact → Application: 800 A amperage rating provides high current interrupt capability, reducing the likelihood of cascading faults and enabling faster protection in large motor feeders. This translates to improved uptime and lower maintenance costs in heavy industry applications such as pump, conveyor, and compressor bays. Feature → Business Impact → Application: Three-pole, non-fusible design simplifies integration with existing switchgear, enabling straightforward retrofits and compatibility with standard MCC architectures. Application: retrofit projects and new builds where reliable isolation and safety interlock are required. Feature → Business Impact → Application: 24 Vdc coil with 1 NO 1 NC contact configuration supports versatile logic and alarm schemes, improving control flexibility and enabling precise fault signaling in automation lockers and safety interlocks. Application: control panels and safety circuits that demand clear fault feedback. Feature → Business Impact → Application: NEMA 4X enclosure and 304 stainless steel construction deliver corrosion resistance and washdown compatibility, extending service life in food processing, pharma, and outdoor installations. Application: environments with moisture, dust, or chemical exposure where reliability is critical. Feature → Business Impact → Application: 600 Vac / 250 Vdc voltage ratings and UL Listed, cUL Certified approvals ensure code compliance and safer operation across international sites. Application: multi-site automotive, packaging lines, and water treatment facilities requiring consistent safety performance. Feature → Business Impact → Application: 800 A non-fusible protection minimizes nuisance trips and supports clear maintenance windows, improving overall plant efficiency and energy management. Application: high-load motor control centers and feeder panels seeking dependable, long-term protection.
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FAQs
Begin by confirming the three-pole configuration and mounting footprint suits your enclosure. Ensure a proper 24 Vdc coil drive, wire your 1 NO 1 NC contact configuration to the control circuit, and verify NEMA 4X sealing for washdown zones. Use the UL/cUL listings as a compliance baseline and perform a functional test after installation to confirm correct trip signaling and alarm outputs.
The 800 A amperage rating indicates the maximum current the device can interrupt without damage. The 600 Vac and 250 Vdc voltage ratings define the maximum AC and DC circuit voltages the switch can safely operate. Together with non-fusible protection, this setup supports fast isolation of motor feeders and minimizes thermal stress during faults.
Yes. The STS367UW61 features a NEMA 4X enclosure and 304 stainless steel material, delivering corrosion resistance and washdown compatibility. This makes it well-suited for food processing, pharmaceutical, and outdoor environments where moisture and contaminants are common.
The device is UL Listed and cUL Certified, ensuring adherence to recognized safety standards across North America. Certifications facilitate regulatory approvals, support insurance requirements, and help meet project specifications for industrial safety and electrical protection equipment.
The robust 304 stainless steel, NEMA 4X enclosure minimizes corrosion-related wear and reduces maintenance frequency in harsh environments. High reliability and faster fault clearance translate to reduced downtime, lower replacement costs, and improved plant productivity—delivering a favorable return on investment over the equipment’s life cycle.