Eaton shunt trip safety switch STS367NW34 - UL Listed
Part Number: STS367NW34
Quick Summary
Eaton shunt trip safety switch STS367NW34 is a rugged, three-pole protective device designed for industrial control panels and power distribution. Engineers often struggle to balance high fault current handling with robust enclosure construction and straightforward installation; this model delivers 800A capacity, 600 Vac / 250 Vdc ratings, and a corrosion-resistant NEMA 4X enclosure. With a 120 Vac coil and an integrated auxiliary contact (1 NO 1 NC), it provides reliable signaling and interlock options for enhanced safety and control. UL Listed and cUL Certified, the STS367NW34 supports regulatory compliance while reducing maintenance and downtime, delivering long-term value for critical automation applications. This combination translates to safer operations, fewer nuisance trips, and streamlined procurement for industrial environments.
Product Information
Extended Description
STS367NW34 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, Alarm switch, Auxiliary contact, 120 Vac, 1 NO 1 NC, NEMA 4X, 304 stainless steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367NW34
UPC
786685829982
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
120 Vac
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 - STS367NW34
Selling Policy 25-000 - Distribution and Control Products and Services
Feature and benefit narratives follow a practical pattern: each feature is shown with its business impact and a real-world application. The 800A amperage rating enables the device to safely interrupt high-current loads common in heavy machinery, reducing the risk of overheating and equipment damage in manufacturing lines. The 120 Vac coil allows remote triggering from standard control circuits, improving integration with existing PLCs and safety interlocks. A voltage rating of 600 Vac / 250 Vdc ensures compatibility with both AC and DC systems found in distribution panels, increasing installation flexibility and reducing component diversity. The NEMA 4X enclosure made from 304 stainless steel provides corrosion resistance and washdown suitability, lowering maintenance costs in harsh environments. The three-pole design and fusible protection support coordinated protection schemes, while the 1 NO 1 NC auxiliary contacts deliver reliable status signaling for control logic. Certifications including UL Listed and cUL Certified reinforce compliance, with Eaton’s warranty policy offering a defined support window to minimize lifecycle risk. Compatibility with Eaton specification sheets and standard mounting footprints helps simplify retrofits and new installations, delivering measurable savings in project timelines and maintenance.
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FAQs
STS367NW34 is designed for three-pole installations with an 800A rating and 600Vac/250Vdc capability, accommodating common industrial panels. It includes a 120Vac coil and a 1NO 1NC auxiliary contact, enabling straightforward interlock and signaling integration. The NEMA 4X enclosure in 304 stainless steel supports rugged installation in harsh environments, simplifying retrofit projects and new builds alike.
Key ratings include an 800A amperage capacity, voltage rating of 600 Vac and 250 Vdc, and a 120 Vac coil voltage. The device provides 1 NO 1 NC auxiliary contacts for signaling, and is a three-pole shunt trip safety switch. These specs support high-current protection with compatible coil control from standard AC control systems.
Ideal for manufacturing lines, power distribution panels, and large-motor applications where reliable tripping, robust protection, and corrosion resistance are needed. The 304 stainless steel NEMA 4X enclosure suits washdown and dusty environments, while the 800A rating supports heavy-duty equipment protection in metal fabrication, packaging, and process industries.
STS367NW34 carries UL Listed and cUL Certified marks, indicating compliance with key safety standards. It comes with Eaton’s warranty policy (one year from installation or eighteen months from shipment, whichever occurs first). The combination of certifications and warranty supports risk mitigation and predictable maintenance planning.
Official documents include the Eaton Specification Sheet for STS367NW34 and related warranty materials. You can access the specification sheet for detailed electrical ratings, mechanical dimensions, mounting instructions, and installation notes to support design, procurement, and field deployment.