Eaton STS367FP14 Shunt Trip Safety Switch - UL Listed
Part Number: STS367FP14
Quick Summary
Eaton STS367FP14 shunt trip safety switch protects electrical systems by instantly breaking fault circuits in motor control centers. This addresses nuisance trips and slow isolation that extend downtime and complicate maintenance in rugged industrial environments. UL Listed and cUL Certified for safety, with a NEMA 4 painted steel enclosure, it is built to endure demanding plant floors. Pairing with a 24 Vac coil and an 800 A protection profile, it delivers reliable emergency shutdown capability and motor protection across industrial facilities.
Product Information
Extended Description
STS367FP14 Eaton: Eaton Shunt trip safety switch, 800 A, 1NO/1NC auxiliary contact and 1NO/1NC alarm switch, Coil V: 24 Vac, NEMA 4, Painted steel, 600 V, Three-pole, Fusible without neutral
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367FP14
UPC
786685829586
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 4
Enclosure material
Painted steel
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
800A
Coil voltage
24 Vac
Protection
Fusible without neutral
Voltage rating
600 V
Contact configuration
1 NO 1 NC
Feature: High current protection up to 800 A. Business Impact: Enables rapid isolation of large loads, reducing downtime and protecting personnel and equipment in surge events. Application: Suitable for MCCs and heavy motor feeders where quick disconnect is essential. Long-tail keyword integration: high current industrial safety switch, motor protection device, 800A shunt trip. Feature: 24 Vac coil voltage. Business Impact: Standardizes control circuits, simplifies integration with typical plant control systems and relays. Application: Works with common 24 VAC control infrastructure, aiding retrofit projects and new builds. Long-tail keyword integration: 24 VAC control circuit, coil voltage compatibility, control system integration. Feature: NEMA 4 enclosure in painted steel. Business Impact: Delivers robust weather and washdown resistance, lowering enclosure maintenance and corrosion-related downtime. Application: Ideal for harsh indoor/outdoor spaces in manufacturing and process facilities. Long-tail keyword integration: NEMA 4 protection, rugged enclosure, industrial environmental rating. Feature: 600 V voltage rating and three-pole configuration. Business Impact: Supports standard medium-voltage motor and switchgear arrangements with reliable wiring topology. Application: Fits typical motor control centers and panelboards; simplifies installations. Long-tail keyword integration: 600 V rating, three-pole safety switch, panelboard compatibility. Feature: Auxiliary and alarm contacts (1 NO 1 NC). Business Impact: Enables signaling and interlock schemes for enhanced safety monitoring and automation logic. Application: Integrates with plant safety systems and alarm panels. Long-tail keyword integration: auxiliary contacts, alarm signals, safety interlock. Feature: Fusible without neutral. Business Impact: Reduces material complexity and simplifies protection architecture in non-neutral switching schemes. Application: Suitable for legacy systems and new installations where neutral is not required. Long-tail keyword integration: fusible without neutral, protection architecture, non-neutral switching. The combination of these features supports a reliable, compliant, and cost-effective protection strategy, enabling engineers to design safer, more efficient industrial power distributions while minimizing maintenance burdens and downtime.
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FAQs
Installation requires locating the three-pole safety switch within a suitable enclosure, wiring the 24 VAC control circuit to the coil, and connecting the 1 NO 1 NC auxiliary and 1 NO 1 NC alarm contacts to monitoring circuits. Follow manufacturer torque specs and meet UL/cUL wiring guidelines to ensure reliable actuation and signaling during emergency shutdowns.
The STS367FP14 is specified for 24 VAC coil operation. For DC control systems, a different product variant designed for DC coil voltages should be selected to ensure proper coil energization, release timing, and compatibility with DC control logic.
Best suited for motor control centers, process line protection, and emergency shutdown schemes in facilities up to 600 V. Its 800 A rating, 24 VAC coil, and NEMA 4 enclosure make it ideal for rugged environments where fast isolation and reliable signaling are critical for safety and uptime.
The unit is UL Listed and cUL Certified, meeting stringent safety standards for component and system reliability. This ensures compliance with electrical codes and reduces risk in audits, while the NEMA 4 enclosure adds environmental protection for challenging plant settings.
By enabling rapid fault isolation, the STS367FP14 minimizes downtime and potential collateral damage during faults. Its robust enclosure and standard coil voltage simplify maintenance, reduce replacement parts, and improve overall equipment availability, delivering measurable savings over traditional slow-isolation solutions.