Eaton STS367FP3 Shunt Trip - UL Listed
Part Number: STS367FP3
Quick Summary
Shunt trip safety switch is a protective device that automatically isolates power to a circuit when a trip signal is received. Eaton's STS367FP3 enables rapid disconnection for motor drives, feeders, and safety-critical loads in control panels. This solution addresses nuisance trips and missed safety actions that can hazard personnel and equipment. It carries UL Listed and cUL Certified statuses, and its NEMA 4-painted steel enclosure provides dependable operation in harsh environments. With a three-pole design and 800 A rating, this unit supports high-demand applications while maintaining straightforward installation. The 120 Vac coil, 600 Vac/250 Vdc ratings, and fusible protection simplify integration with existing control systems, helping facilities reduce downtime and comply with safety standards.
Product Information
Extended Description
STS367FP3 Eaton: Eaton shunt trip safety switch, 800 A, Three pole, 600 Vac, 250 Vdc, 120 Vac, NEMA 4, Painted steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367FP3
UPC
786685829593
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
UL Listed cUL Certified
Enclosure
NEMA 4
Enclosure material
Painted 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
Feature 800 A amperage rating → Business Impact Enables protection for high-current circuits and reduces the risk of equipment damage during faults, delivering dependable protection for large motors and feeders in industrial plants. Application Suitable for heavy-duty motor control centers and switchgear where high fault currents are expected. Feature 3-pole construction → Business Impact Provides robust, simultaneous disconnection across all phases, improving system reliability and safety during emergency events. Application Ideal for three-phase motor circuits and critical loads requiring coordinated isolation. Feature 120 Vac coil voltage → Business Impact Easy integration with standard control circuits and PLC outputs, lowering installation time and interconnect complexity. Application Central control panels and safety interlock systems. Feature NEMA 4 painted steel enclosure → Business Impact Ensures weatherproof, washdown-capable protection that reduces maintenance costs and extends service life in harsh environments. Application Plant floors, outdoor installations, and demanding facilities. Feature Fusible protection with 600 Vac/250 Vdc ratings → Business Impact Adds an extra layer of fault protection and simplifies coordination with other protective devices, reducing nuisance trips and component wear. Application Industrial switchgear and protective assemblies. Feature UL Listed and cUL Certified → Business Impact Demonstrates compliance with rigorous safety standards, easing regulatory approvals and procurement audits. Application Regulatory environments and multi-site deployments. Note: This STS367FP3 model also provides detailed specifications for installation and compatibility, including weight, dimensions, and mounting requirements, which help engineers plan seamless integration with existing control architectures.
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FAQs
When planning installation, ensure the unit fits a three-pole footprint within a NEMA 4 enclosure, supports an 800 A rating, and accommodates a 12.43 in depth, 29.54 in width, and 71.72 in height footprint. Plan for 167 lb weight, sturdy wall or panel mounting, and compatible wiring schedules for the 120 Vac coil and 600 Vac/250 Vdc main circuits. Verify clearances for serviceability and ease of maintenance.
The STS367FP3 provides an 800 A amperage rating with a three-pole configuration, a main voltage rating of 600 Vac and 250 Vdc, and a control coil of 120 Vac. It is fusible, with NEMA 4 enclosure protection and a painted steel enclosure suitable for demanding environments. This combination supports reliable performance in high-current industrial settings.
Yes. The three-pole shunt trip safety switch is designed for safety-critical isolation in switchgear and motor control applications. Its NEMA 4 enclosure and rugged construction make it appropriate for plant floors and outdoor or washdown areas, while the 120 Vac coil enables direct interfacing with standard control circuits and PLCs.
STS367FP3 is UL Listed and cUL Certified, indicating compliance with widely recognized electrical safety standards. These certifications simplify procurement for regulated facilities, support second-party audits, and help ensure consistent performance across multi-site deployments.
The STS367FP3 reduces downtime by delivering rapid, reliable circuit isolation during faults or maintenance. Its fusible protection and robust enclosure minimize wear and nuisance trips. Regular inspection of wiring, coil integrity, and enclosure seals, aligned with Eaton’s warranty policy, helps sustain long-term performance and minimize unplanned outages.