Eaton STS368FP3 Shunt Trip Safety Switch - UL Listed
Part Number: STS368FP3
Quick Summary
STS368FP3 Shunt Trip Safety Switch provides reliable remote shutdown for heavy-duty electrical protection in industrial plants. Engineers often face unplanned downtime and safety-compliance risk during startup and maintenance; this switch enables fast, reliable isolation to minimize both. UL Listed and cUL Certified provide proven safety compliance, while a rugged NEMA 4 enclosure protects in harsh environments. In power distribution panels and safety switchgear, this device supports motor protection, ensures compliant isolation, and reduces maintenance costs over its long service life. Additionally, it integrates smoothly with existing control circuits and simplifies procurement with a single, certified solution for high-current protection.
Product Information
Extended Description
STS368FP3 Eaton: Eaton Heavy Duty Shunt Trip Safety Switch, 1200 A, Three pole, 600 Vac, 250 Vdc, Fusible, NEMA 4
Product Name
Eaton Heavy Duty Shunt Trip Safety Switch
Catalog Number
STS368FP3
UPC
786689314200
Product Length/Depth
23.15 in
Product Height
72.5 in
Product Width
47.23 in
Product Weight
405 lb
Certifications
UL Listed cUL Certified
Enclosure
NEMA 4
Number Of Poles
Three-pole
Amperage Rating
1200A
Coil voltage
120 Vac
Protection
Fusible
Voltage rating
600 Vac, 250 Vdc
Built for demanding industrial environments, the STS368FP3 combines a rugged NEMA 4 enclosure with proven mechanical construction to resist dust, water spray, and routine washdowns. This level of enclosure protection helps keep the internal trip mechanism clean and responsive, reducing the likelihood of nuisance trips or delayed operation. Operators gain dependable remote shutdown capabilities without sacrificing accessibility for routine testing and maintenance. The switch is engineered for heavy-duty electrical loads, featuring 1200 A amperage rating across three poles. It handles large motor and feeder interruptions in switchgear and motor control centers, while the 600 Vac and 250 Vdc ratings provide broad compatibility with modern distribution schemes. The space-efficient, multi-pole design also streamlines wiring and coordination with upstream breakers, delivering tangible space savings and simpler commissioning in new builds or upgrades. A 120 Vac coil enables reliable shunt-trip operation, allowing fast, remote isolation triggered by safety interlocks, programmable safety relays, or centralized control systems. This enables rapid fault response and reduces exposure time for operators during maintenance. The unit integrates smoothly with existing control circuits, and Eaton's standard accessories support straightforward mounting, wiring, and testing across a wide range of panel sizes. Fusible protection provides an integrated fault-interrupt path, enabling coordinated protection that minimizes arc-flash potential and helps meet risk reduction targets in hazardous environments. The fusible option reduces the need for external fuses and simplifies panel layouts, which can cut assembly time and stocking costs. In practice, this translates to lower total cost of ownership and more predictable maintenance planning. UL Listed and cUL Certified status deliver independent safety validation, easing procurement and regulatory approvals across North America and international sites. The documented performance, combined with a robust warranty-backed design, supports long service life in production lines, data centers, and industrial automation applications. In short, STS368FP3 is a proven, scalable solution for reliable emergency shutdown in tough environments.
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FAQs
STS368FP3 is designed for heavy-duty switchgear, motor control centers, and power distribution panels. It supports a three-pole configuration with 120 Vac coil control and fusible protection, compatible with 600 Vac and 250 Vdc circuits. The rugged NEMA 4 enclosure enables reliable operation in dusty, wet, or washdown environments, while standard Eaton wiring practices simplify mounting, wiring, and commissioning.
Key performance specs include a 1200 A amperage rating across three poles, 600 Vac and 250 Vdc voltage ratings, 120 Vac coil voltage, and fusible protection. The enclosure is NEMA 4 rated, and the unit is UL Listed and cUL Certified. The product is designed for high-current safety switching in demanding industrial applications, with a remote trip capability for rapid isolation.
Yes. The STS368FP3 is well-suited for motor control centers and heavy-duty power distribution panels. Its high current rating, three-pole design, and 120 Vac coil enable reliable remote shutdown for motor protection and safety interlocks. Its NEMA 4 enclosure supports installation in harsh industrial environments, while the fusible protection helps coordinate with upstream devices for safer, more predictable operation.
STS368FP3 carries UL Listed and cUL Certified certifications, confirming compliance with recognized safety standards. The product also features a NEMA 4 enclosure for environmental protection. These certifications simplify procurement, inspection, and regulatory approvals across North America and international sites, supporting safer and more dependable emergency shutdown implementations in industrial automation.
The rugged construction and integrated fusible protection contribute to longer service life and reduced maintenance intervals, lowering total cost of ownership. Remote trip capability minimizes downtime by enabling rapid isolation during faults, while UL/cUL certification and a robust warranty-backed design support faster procurement and inspector acceptance. Overall, the STS368FP3 delivers predictable performance in high-current safety applications.