Eaton STS367NP14 Shunt Trip Safety Switch - UL Listed
Part Number: STS367NP14
Quick Summary
Eaton shunt trip safety switch STS367NP14 provides remote, immediate shutdown for motor control centers and large electrical feeders. Maintenance teams often face arc flash risk and uncertain isolation when shutting down heavy loads. UL Listed and cUL Certified for North American installations, with a NEMA 4 enclosure, provide regulatory assurance and rugged protection in harsh environments. Three-pole, 800 A capacity with a 24 Vac coil integrates with standard control circuits, boosting uptime and safety across industrial facilities.
Product Information
Extended Description
STS367NP14 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, Alarm switch, Auxiliary contact, 24 Vac, 1 NO 1 NC, NEMA 4, Painted steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367NP14
UPC
786685829869
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 4
Enclosure material
Painted steel
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
800A
Coil voltage
24 Vac
Protection
Fusible
Voltage rating
600 Vac, 250 Vdc
Contact configuration
1 NO 1 NC
Feature: 800 A, three-pole shunt trip design. Business Impact: Enables reliable isolation of all three phases for high-load equipment, reducing the risk of partial energization and arc flash exposure. Application: Large motor control centers and heavy feeders where dependable remote shutdown is required. Feature: 24 Vac coil voltage. Business Impact: Seamless integration with common control circuits and PLC interfaces, simplifying control wiring and commissioning. Application: Panel buses and control panels in process industries. Feature: NEMA 4 enclosure with painted steel. Business Impact: Durable protection against dust, water ingress, and corrosion in indoor and semi-exposed installations. Application: Industrial plants, outdoor switchgear rooms, and wash-down environments. Feature: Auxiliary contact (1 NO 1 NC). Business Impact: Facilitates signaling and interlock logic for remote monitoring and safety interlocks, reducing external components. Application: Control-room signaling, PLC inputs, and alarm circuits. Feature: Fusible protection and high-duty rating. Business Impact: Consolidates protective functions, lowers component count, and improves fault handling. Application: Power distribution zones requiring fast isolation and clear fault indication. Feature: Compliance and robust build. Business Impact: UL Listed and cUL Certified designs support cross-border procurement and audit readiness. Application: Enterprise-wide safety programs and supplier qualification. Feature: Global footprint with precise dimensions. Business Impact: Predictable installation envelope and straightforward retrofits in existing panels. Application: Retrofit projects and new builds with standard mounting footprints.
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FAQs
Begin with a risk assessment and verify compatibility with your control system. Mount the STS367NP14 in a compatible enclosure, connect the 24 Vac coil to the control circuit, and wire the main conductors for the 800 A rating. Attach the 1 NO 1 NC auxiliary contact for signaling, and confirm NEMA 4 sealing. Finally, test the remote trip function with a supervised sequence to ensure proper interlock and fail-safe behavior.
The device is designed as a three-pole, 800 A shunt trip with a fusible protection profile, capable of interrupting high-current loads safely. Its robust painted steel enclosure and NEMA 4 rating support installation in demanding environments. The 24 Vac coil ensures compatibility with standard control circuits, enabling reliable remote disengagement during maintenance or fault conditions.
Yes. The STS367NP14 carries UL Listed and cUL Certified markings, providing regulatory compliance for installations in the United States and Canada. This certification streamlines procurement, reduces qualification risk for projects, and supports cross-border deployment in corporate safety programs. Use this device in accordance with applicable electrical codes and Eaton installation guidelines.
Absolutely. The unit features a NEMA 4 enclosure and painted steel construction, delivering protection against dust, moisture, and weathering in indoor and semi-exposed locations. This makes it well-suited for controlled plant areas, outdoor switchgear rooms, and wash-down environments where reliable isolation and rugged operation are required.
The STS367NP14 consolidates protection with a remote-trip capability, reducing maintenance downtime and exposure to risk for technicians. Its robust construction and integrated auxiliary signaling lessen the need for extra components, while UL/cUL compliance minimizes vendor risk. Over time, facilities observe improved uptime, safer shutdown procedures, and streamlined spare-part planning across electrical distributions.