Eaton STS367NW64 Shunt Trip Safety Switch - UL Listed
Part Number: STS367NW64
Quick Summary
Eaton shunt trip safety switch isolates three-pole power circuits for fast, automatic shutdown in demanding industrial environments. Maintenance teams often wrestle with nuisance trips and downtime when safety interlocks or remote-trip signaling are unreliable. Key certifications include UL Listed and cUL Certified, paired with a NEMA 4X, 304 stainless steel enclosure to resist corrosion in harsh environments. This model supports 800 A at 600 Vac (and 250 Vdc) with a 24 Vdc coil, while offering an auxiliary contact and alarm switch for seamless PLC integration and safer, compliant operations.
Product Information
Extended Description
STS367NW64 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, Alarm switch, Auxiliary contact, 24 Vdc, 1 NO 1 NC, NEMA 4X, 304 stainless steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367NW64
UPC
786685830018
Product Length/Depth
12.43 in
Product Height
71.72 in
Product Width
29.54 in
Product Weight
170 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
Auxiliary contacts
Auxiliary contact
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
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 - STS367NW64
Feature: 800 A amperage rating and three-pole design provide robust fault isolation for large motor feeders. Business Impact: reduces nuisance trips and prevents fuse blowouts, lowering maintenance costs and downtime. Application: motor control centers and heavy-load distribution panels in manufacturing or mining facilities. Feature: Three-pole configuration with 1 NO 1 NC auxiliary contact offers versatile signaling. Business Impact: enables direct PLC/SCADA signaling, alarms, and interlock logic without extra modules. Application: remote monitoring and interlocking schemes in MCCs and safety circuits. Feature: 24 Vdc coil with 600 Vac and 250 Vdc ratings ensures broad control voltage compatibility. Business Impact: simplifies panel design and stocking, improving commissioning speed. Application: integration with diverse control systems and mixed-voltage installations. Feature: NEMA 4X enclosure in 304 stainless steel delivers corrosion resistance and washdown suitability. Business Impact: extends service life in harsh or damp environments, reducing replacement cycles. Application: food processing, chemical plants, and outdoor installations. Feature: Fusible protection and 1 NO 1 NC auxiliary contact provide enhanced fault isolation and signaling. Business Impact: improves protection coordination and visibility of trip events. Application: systems requiring clear trip indication and safe clearance paths. Feature: UL Listed and cUL Certified with industrial-grade enclosure. Business Impact: simplifies procurement compliance and vendor validation, enabling faster project approval. Application: regulated facilities and safety-critical control panels in automated plants.
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FAQs
STS367NW64 is designed for three-pole panel installations with a NEMA 4X enclosure in 304 stainless steel. Plan for a footprint around 29.54 in wide by 71.72 in tall and 12.43 in depth, ensuring adequate clearance for the auxiliary contact wiring and access to the 24 Vdc coil control. Always reference the Eaton specification sheet for mounting clearances and connection diagrams to ensure safe, compliant integration into MCCs or distribution panels.
The device uses a 24 Vdc coil and supports 600 Vac and 250 Vdc voltage ratings, with an 800 A amperage rating. It features a 1 NO 1 NC auxiliary contact for signaling and remote control. This combination enables reliable remote trip signaling and flexible interlock configurations within industrial power systems.
Yes. STS367NW64 uses a 304 stainless steel enclosure rated as NEMA 4X, which offers excellent resistance to corrosion and splash/washdown conditions. This makes it suitable for demanding environments such as food and beverage processing, chemical plants, and outdoor installations where cleanliness and protection are critical.
The STS367NW64 is UL Listed and cUL Certified, confirming compliance with broad electrical safety standards for industrial control gear. This supports procurement approvals and reduces compliance risk in regulated facilities, while the NEMA 4X enclosure reinforces its suitability for harsh environments.
Eaton provides a warranty policy of one year from installation or eighteen months from shipment, whichever occurs first, under policy 25-000. With a rugged stainless steel enclosure and high-current ratings, the unit typically delivers longer service life and reduced downtime, translating to lower maintenance costs and improved return on investment in high-demand facilities.