Eaton STS368FP32 Shunt Trip Safety Switch - UL Listed & cUL Certified
Part Number: STS368FP32
Quick Summary
The Eaton STS368FP32 Shunt Trip Safety Switch provides rapid, reliable isolation for industrial power distribution panels. Engineers often struggle with delivering fast shutdown during faults without sacrificing uptime or personnel safety. This device carries UL Listed and cUL Certified ratings and a NEMA 4 enclosure, delivering durable protection in harsh environments. With a 1200A capacity and three-pole construction, it integrates smoothly with modern control circuits, while the 120 Vac coil supports straightforward wiring to PLCs and relays. In practice, facilities experience reduced downtime, improved safety margins, and simplified panel modernization when specifying a proven heavy-duty safety switch like STS368FP32.
Product Information
Extended Description
STS368FP32 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
STS368FP32
UPC
786689314217
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
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - STS368FP32
Feature: Heavy-duty three-pole design supports high-current applications with maximum load integrity. Business Impact: Reduces fault propagation risk and minimizes bus-bar damage during faults. Application: Main feeders in manufacturing lines and critical power distribution panels benefit from robust isolation. Feature: 1200A amperage rating delivers strong protection for large electrical bays and feeders. Business Impact: Improves system reliability and lowers maintenance costs by limiting arc energy and downstream faults. Application: Data centers and processing lines demanding high-current control.Feature: Coil voltage at 120 Vac enables seamless control circuit integration. Business Impact: Simplifies wiring schemes, lowers control logic complexity, and reduces installation time. Application: Control cabinets and PLC-driven safety circuits in industrial plants.Feature: Wide voltage rating 600 Vac and 250 Vdc provides cross-domain compatibility. Business Impact: Enables use across mixed AC and DC segments without multiple devices. Application: Mixed-load panels and facilities with evolving power architectures.Feature: NEMA 4 enclosure delivers weather- and dust-resistant protection. Business Impact: Extends service life in harsh environments and reduces preventative maintenance. Application: Outdoor or damp indoor installations without compromise.Feature: Fusible protection adds arc energy control and selective coordination. Business Impact: Improves downstream protection coordination and fault containment, lowering risk of cascading outages. Application: Critical feeders in hazardous or noisy electrical environments.Feature: UL Listed and cUL Certified compliance supports regulatory readiness. Business Impact: Reduces QA time for audits and accelerates panel fabrication with trusted safety credentials. Application: Industrial automation suites and safe-work environments requiring certified hardware.
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FAQs
For proper installation, mount the three-pole unit in a suitable enclosure with a NEMA 4 rating to resist moisture and dust. Ensure clearances around the device for wiring access, verify compatible control wiring with a 120 Vac coil, and follow manufacturer torque specs for terminal connections. Coordination with protective devices in the panel is recommended to maintain selective tripping during faults.
The device is rated for 1200 A with a 120 Vac coil. It supports fault isolation on systems up to 600 Vac and 250 Vdc. The unit is fusible, three-pole, and designed for heavy-duty service, facilitating reliable shutdown of large feeders while maintaining control circuit compatibility.
Yes. Its three-pole construction, 1200 A rating, and NEMA 4 enclosure make it ideal for industrial safety panels that require robust isolation. The 120 Vac coil integrates with standard PLC outputs, and its fusible protection helps manage fault energy while meeting common safety and performance standards.
The STS368FP32 is UL Listed and cUL Certified, underscoring compliance with widely recognized electrical safety standards. These certifications simplify audits, improve supplier qualification, and support regulatory conformance in industrial installations, especially where safety certifications are required by project specifications.
Maintenance is typically low due to solid-state reliability and fusible protection that limits fault energy. The system benefits from reduced downtime during faults, safer shutdowns, and easier panel modernization, contributing to a faster return on investment through higher uptime and lower risk in critical power paths.