Eaton shunt trip safety switch STS367NW14 - NEMA 4X
Part Number: STS367NW14
Quick Summary
The Eaton shunt trip safety switch STS367NW14 provides fast, reliable control for motor starters in industrial safety systems. Plants often suffer downtime and misconfigured safety interlocks when remote trips aren’t straightforward. This model’s rugged NEMA 4X stainless enclosure and built‑in auxiliary contact simplify wiring, speeding commissioning and reducing rework. It carries UL Listed and cUL Certified markings and supports an 800 A, three‑pole configuration with a 24 Vac coil for dependable control of 600 Vac and 250 Vdc circuits. Designed for harsh environments, it reduces total cost of ownership by improving safety, reliability, and maintenance planning across power distribution and control panels.
Product Information
Extended Description
STS367NW14 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 4X, 304 stainless steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367NW14
UPC
786685829951
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
cUL Certified UL Listed
Auxiliary contacts
Auxiliary contact
Enclosure
NEMA 4X
Enclosure material
304 stainless 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
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - STS367NW14
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 800 A, three‑pole main disconnect. Business Impact: Enables safe, scalable protection for large motor loads and feeders, reducing panel footprint and wiring complexity. Application: Motor control centers and heavy industrial power distribution. Feature: 24 Vac coil for remote tripping. Business Impact: Facilitates rapid emergency shutdowns and controlled interlock sequencing from control panels, improving operator safety. Application: Plant safety interlocks and PLC-driven shutdowns. Feature: NEMA 4X enclosure in 304 stainless steel. Business Impact: Provides corrosion resistance and washdown capability, extending life in harsh environments. Application: Food & beverage, pharmaceutical, chemical plants. Feature: Auxiliary contact and alarm switch (1 NO 1 NC). Business Impact: Delivers status feedback and signaling for DCS/SCADA integration, enhancing condition monitoring. Application: Real-time safety signaling and interlock verification. Feature: Fusible protection with 600 Vac / 250 Vdc rating. Business Impact: Supports protective coordination and fault containment, reducing downstream damage. Application: Power distribution and motor protection schemes. Feature: UL Listed and cUL Certified. Business Impact: Streamlines procurement and compliance, easing qualification for regulated facilities. Application: Industrial purchasing and contract compliance.
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FAQs
STS367NW14 is a three‑pole, 800 A device with a 24 Vac coil designed for main disconnects in motor control centers and feeders. It uses a durable NEMA 4X enclosure (304 stainless steel) for harsh environments. Plan for a stable mounting footprint (12.43 in depth, 29.54 in width, 71.72 in height) and ensure the plant control circuits provide the 24 Vac coil supply for reliable tripping.
Key ratings include 800 A amperage, 600 Vac / 250 Vdc voltage capability, and a 24 Vac coil. The device is fusible, providing coordinated protection against faults, while the auxiliary contact (1 NO 1 NC) supports signaling. These specs enable safe, dependable remote tripping in high‑power systems and compatibility with common control architectures.
Ideal for motor control centers, large feeders, and safety interlock circuits in demanding environments. Its 800 A, three‑pole main disconnect plus a 24 Vac coil supports emergency shutdowns and remote trip signaling. The NEMA 4X enclosure makes it suitable for washdown areas found in food, beverage, and pharmaceutical facilities, as well as general industrial power distribution.
The product carries UL Listed and cUL Certified markings, ensuring compliance with widely adopted electrical safety standards. Combined with a rugged NEMA 4X enclosure, these certifications simplify supplier qualification and reduce risk in regulated facilities. Always verify current certification scope during procurement to match regional requirements.
Warranty follows Eaton policy SP0300001: one year from installation or eighteen months from shipment, whichever occurs first. Benefits include extended device life, reduced downtime, and easier maintenance planning due to robust enclosure, clear signaling options, and reliable remote tripping. ROI improves through lower repair costs and fewer unscheduled shutdowns in critical power and safety systems.