Eaton STS367UW64 Shunt Trip Safety Switch - UL Listed
Part Number: STS367UW64
Quick Summary
Eaton STS367UW64 shunt trip safety switch provides rapid automatic isolation for electrical enclosures in industrial control panels. Engineers frequently face coordination gaps between interlocks and alarm signaling during faults, risking downtime and safety concerns. This unit is UL Listed and cUL Certified, with a NEMA 4X, 304 stainless steel enclosure for harsh industrial settings. Its 800 A rating, 24 Vdc coil, and 1 NO 1 NC contact ensure reliable, code-compliant isolation without adding complex wiring, while enabling straightforward integration with existing protection schemes. This combination also supports flexible signaling options and delivers consistent performance across demanding applications, helping teams meet safety goals and maximize plant uptime.
Product Information
Extended Description
STS367UW64 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, Non-Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367UW64
UPC
786685830285
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
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
Non-Fusible
Voltage rating
600 Vac, 250 Vdc
Contact configuration
1 NO 1 NC
The STS367UW64 delivers an 800 A capacity in a three-pole, non-fusible shunt trip switch. This high current rating supports direct isolation of large motor feeders and critical loads without requiring external fusing. By providing immediate power shutoff during fault events, it minimizes arc flash exposure and protects downstream equipment. The device uses a 24 Vdc coil and includes 1 NO 1 NC auxiliary contact, offering flexible control logic and easy integration with PLCs, alarms, or interlock circuits. The rugged NEMA 4X enclosure in 304 stainless steel withstands washdown, humidity, and corrosive environments, reducing maintenance and extending service life in demanding plants. UL Listed and cUL Certified approvals streamline procurement, inspections, and compliance across North America. With a compact footprint, three-pole design, and non-fusible operation, it complements existing protection schemes while simplifying wiring and upgrade projects. The unit’s dimensions and weight—12.43 in depth, 29.54 in width, 71.72 in height, and 158 lb—facilitate planning in established panel spaces, and it integrates with other Eaton safety devices and alarm systems to deliver cohesive, high-uptime protection.
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FAQs
When planning installation, account for a three-pole, non-fusible device with an overall footprint approximating 12.43 in depth, 29.54 in width, and 71.72 in height. The 158 lb weight requires proper mounting hardware and space within the control cabinet. Ensure panel openings accommodate the 304 stainless steel enclosure and that wiring paths support the 24 Vdc coil and 1 NO 1 NC auxiliary contact wiring for alarm interlocks.
Key specs include an 800 A amperage rating, 3-pole configuration, voltage rating of 600 Vac and 250 Vdc, 24 Vdc coil, and non-fusible protection. It provides 1 NO 1 NC contact configuration and includes an auxiliary contact for alarms. This combination enables reliable, code-compliant isolation suitable for large motor drives and critical loads.
Yes. The unit features a NEMA 4X enclosure made from 304 stainless steel, designed to resist washdowns, humidity, and corrosive environments. This makes it well-suited for food & beverage, chemical processing, and other harsh industrial settings where robust protection and easy cleaning are essential.
STS367UW64 is UL Listed and cUL Certified, offering recognized safety validation for North American markets. These certifications support regulatory compliance, simplify approvals during audits, and facilitate procurement in organizations with strict safety standards.
The robust 304 stainless enclosure, long-term durability, and reliable 800 A protection reduce unplanned downtime and maintenance costs. The included alarm signaling and auxiliary contact streamline interlock integration, enabling quicker fault response, improved safety, and a faster return on investment through higher plant uptime.