Eaton STS367FD14 Shunt Trip Safety Switch - UL Listed
Part Number: STS367FD14
Quick Summary
Eaton shunt trip safety switch quickly disconnects power in industrial control panels to protect personnel, equipment, and critical processes from fault conditions. Operators often grapple with nuisance trips, slow isolation, or mismatched interlocks that extend downtime and compromise safety. This STS367FD14 is UL Listed and cUL Certified, with NEMA 12 and NEMA 3R enclosures to support indoor and outdoor installations. With an 800 A rating, a 24 Vac coil, and 1 NO 1 NC contact configuration, it enables fast, compliant isolation in motor circuits and control panels. Designed for industrial protection and safety interlocks, it integrates smoothly with common control architectures, delivering reliable performance and reduced lifecycle costs.
Product Information
Extended Description
STS367FD14 Eaton: Eaton shunt trip safety switch, 800 A, Three-pole, 600 Vac, 250 Vdc, Alarm switch, 24 Vac, NEMA 12, NEMA 3R, Fusible, 600 V, 1 NO 1 NC
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367FD14
UPC
786685829494
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
Auxiliary contacts
Alarm switch
Enclosure
NEMA 12, NEMA 3R
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
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - STS367FD14
Feature: High-current protection with 800 A rating. Business impact: Enables reliable shutdown of large loads without nuisance tripping, reducing unplanned downtime and protecting critical equipment. Application: Motor control centers and distributed switchgear in high-demand environments. Feature: 24 Vac control coil. Business impact: Enables seamless remote signaling and integration with standard control circuits, lowering wiring complexity and improving control reliability. Application: Control panels requiring safe, low-power trip signaling in automation architectures. Feature: Three-pole configuration with 1 NO 1 NC contacts. Business impact: Provides versatile alarm signaling plus fail-safe operation for interlocks, enhancing safety compliance. Application: Industrial safety interlocks in process lines and machinery. Feature: Enclosure compatibility with NEMA 12 and NEMA 3R. Business impact: Supports indoor protection and outdoor-rated installations, reducing enclosure proliferation. Application: Harsh environments and outdoor equipment enclosures. Feature: Fusible protection and broad voltage ratings (600 Vac, 250 Vdc). Business impact: Aligns with protective schemes that minimize arc flash risk and improve coordination with standard breakers. Application: Power distribution panels and safety interlock circuits. Feature: Integrated alarm switch. Business impact: Enables proactive monitoring and quicker fault diagnosis, improving maintenance responsiveness. Application: Safety interlock and monitoring circuits in industrial automation. Insight: The STS367FD14’s combination of robust ratings, enclosure versatility, and clear signaling simplifies compliance with industry standards while delivering measurable uptime improvements.
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FAQs
Plan space for a three-pole unit rated at 800 A and sized for NEMA 12 or NEMA 3R enclosures. Mount within the enclosure using standard mounting hardware, connect the 24 Vac control coil to your safety interlock circuit, and wire the 1 NO 1 NC contact configuration for alarm signaling. Follow manufacturer guidelines for clearances and torque.
STS367FD14 is rated for 800 A amperage, 600 Vac line voltage, and 250 Vdc auxiliary output. The coil operates at 24 Vac, and the contact configuration provides 1 normally open and 1 normally closed contact. It is a three-pole device with fusible protection to support safe isolation in demanding panels.
Ideal for industrial control panels, motor control centers, and safety interlock circuits, STS367FD14 delivers remote disconnection and alarm signaling in environments requiring robust protection. Its NEMA 12/3R enclosure compatibility makes it suitable for both indoor installations and weather-exposed locations, improving safety, reliability, and regulatory compliance.
STS367FD14 carries UL Listed and cUL Certified markings, ensuring alignment with North American electrical safety standards. These certifications support code-compliant installations in broader markets and provide confidence in safe operation within industrial protection and circuit control applications.
The unit’s rugged construction and standard alarm switch simplify monitoring and diagnostics. With a documented warranty policy and readily available specification materials, maintenance teams can plan preventive checks and compatibility assessments, reducing unexpected downtime and extending overall system availability in safety-critical applications.