Eaton STS367FD3 Shunt Trip Safety Switch - UL Listed
Part Number: STS367FD3
Quick Summary
Eaton STS367FD3 shunt trip safety switch provides rapid disconnection for motor control centers. In dense electrical rooms, mis-trips and nuisance activations raise downtime and maintenance costs. UL Listed and cUL Certified, with NEMA 12 and NEMA 3R enclosures, support reliable industrial protection. The device's 800 A rating, 120 Vac coil, and three-pole design deliver safety, compliance, and cost efficiency. Use it to reduce arc flash risk, enable remote shutoff, and simplify panel retrofits for industrial automation.
Product Information
Extended Description
STS367FD3 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, 120 Vac, NEMA 3R, Fusible, 600 V, NEMA 12
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367FD3
UPC
786685829500
Product Length/Depth
12.43 in
Product Height
71.72 in
Product Width
29.54 in
Product Weight
167 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
cUL Certified UL Listed
Enclosure
NEMA 12, NEMA 3R
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
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - STS367FD3
Feature—800 A rating with a three-pole design provides a robust, centralized protection point for large feeders and motor control centers across demanding industrial environments. Business impact—this capability reduces unplanned outages by enabling rapid, selective shutdown during fault events, minimizing collateral damage to downstream equipment and processes. Application—well suited for manufacturing floors, batch processing lines, and heavy electrical panels where reliability and quick isolation are critical. Feature—120 Vac coil voltage aligns with common control circuits, enabling straightforward integration with existing control logic and PLC outputs. Business impact—simplifies wiring, reduces panel depth, and shortens installation time, delivering measurable labor cost savings during commissioning and future maintenance. Application—works with remote trip signals in MCCs and safety interlock schemes, improving operator safety and process reliability. Feature—fusible protection combined with 600 Vac / 250 Vdc ratings provides coordinated protection for critical loads and downstream devices. Business impact—improves selectivity and reduces fault escalation in feeder networks, helping utilities and OEMs meet protection coordination standards. Application—indicated for indoor/outdoor installations requiring environmental protection in harsh plant areas with NEMA 12 or NEMA 3R enclosures. Feature—NEMA 12 and NEMA 3R enclosures support rugged installation in challenging spaces, resisting dust, moisture, and incidental exposure. Business impact—facilitates retrofit and compatibility with existing enclosures, reducing modification costs and downtime during panel upgrades. Application—recommended for retrofits and new builds in process plants, packaging lines, and heavy machinery control systems. Feature—UL Listed and cUL Certified provide regulatory credibility for industrial safety components, backed by Eaton’s warranty. Business impact—risk mitigation through compliance reduces audit findings and warranty exposure while preserving asset uptime. Application—ideal for capital equipment, safety circuits, and systems requiring robust documentation and service support.
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FAQs
STS367FD3 is a three-pole, 800 A device with a 120 Vac coil that integrates with standard control circuits and typical MCCs. It supports 600 Vac and 250 Vdc ratings and is available in NEMA 12/3R enclosures, enabling straightforward coordination with existing protection schemes and switchgear.
Plan for a large footprint: approximately 12.43 in depth, 71.72 in height, and 29.54 in width with a weight around 167 lb. Mount within a NEMA 12 or NEMA 3R protected enclosure and connect to a 120 Vac control circuit. Ensure alignment with upstream protection and available space for maintenance access.
Ideal for motor control centers, large switchgear, and process lines requiring rapid, remote shutdown. It supports industrial automation environments where uptime is critical and safety compliance, including UL Listed and cUL Certified standards, is a priority.
The device carries UL Listed and cUL Certified markings, ensuring regulatory compliance for industrial safety components. It also uses a NEMA 12/NEMA 3R enclosure to meet environmental protection needs in indoor and outdoor settings.
STS367FD3 is rated for 800 A, with a three-pole configuration and a voltage rating of 600 Vac / 250 Vdc. The coil voltage is 120 Vac, and it offers fusible protection within a NEMA 12/3R enclosure, making it suitable for robust industrial protection and control.