Eaton STS368NW33-1B00 Heavy Duty Shunt Trip - UL Listed

Part Number: STS368NW33-1B00
Manufacturer
Eaton
Part number
STS368NW33-1B00

Quick Summary

Eaton Heavy Duty Shunt Trip Safety Switch is designed to automatically isolate power in critical distribution systems. Engineers often struggle with reliably interrupting feeders during fault conditions without sacrificing uptime. This device is UL Listed and cUL Certified for safety in harsh environments, with a NEMA 4X enclosure that stands up to moisture, dust, and washdown. Featuring a 1200 A rating and 120 V AC coil, it supports 600 Vac and 250 Vdc applications, enabling flexible integration with diverse plant controls. By combining robust protection with clear signaling via 1NO/1NC aux contacts, it delivers quick, auditable shutoff and reduces unplanned downtime while helping maintain regulatory compliance. For procurement teams, these specs translate to longer service life and lower total cost of ownership.

Product Information

Extended Description

STS368NW33-1B00 Eaton: Eaton Heavy Duty Shunt Trip Safety Switch, 1200 A, NEMA 4- EnclosureX, Fusible, Three-pole,600 Vac, 250 Vdc
Product Name
Eaton Heavy Duty Shunt Trip Safety Switch
Catalog Number
STS368NW33-1B00
UPC
786689314378
Product Length/Depth
23.15 in
Product Height
72.5 in
Product Width
47.23 in
Product Weight
405 lb
Certifications
UL Listed cUL Certified
Catalog Notes
Includes 1NO/1NC Aux Cont, 480V CPT, AER/GF Relay & Sensors
Enclosure
NEMA 4X
Number Of Poles
Three-pole
Amperage Rating
1200A
Coil voltage
120 Vac
Protection
Fusible
Voltage rating
600 Vac, 250 Vdc
Feature: 1200 A amperage rating enables direct interrupt of heavy motor feeders and main distribution lines. Business impact: reduces the risk of arcing and equipment damage during fault events, improving operator safety and minimizing unplanned downtime in demanding environments. Application: ideal for industrial plants, mining equipment, and large packaging lines where robust protection is non-negotiable. Feature: Three-pole construction with 1NO/1NC auxiliary contacts provides clear status signaling and interlock capability. Business impact: enables reliable remote monitoring and coordination with PLCs or motor control centers, streamlining preventative maintenance and fault logging. Application: integration into MCCs and switchgear assemblies where comprehensive control signals are essential. Feature: NEMA 4X enclosure delivers corrosion resistance and weatherproof protection for washdown environments and outdoor installations. Business impact: extends service life in harsh facilities and reduces maintenance cycles. Application: outdoor substations, chemical plants, and exposed electrical rooms require this level of enclosure. Feature: 600 Vac / 250 Vdc voltage ratings and 120 Vac coil support mixed-power systems and easy control integration. Business impact: simplifies plant-wide harmonization and reduces the need for voltage converters, lowering installation cost. Application: systems with both AC and DC control circuits and diverse equipment across plant floors. Feature: Catalog notes include 1NO/1NC Aux Cont, 480V CPT, AER/GF Relay & Sensors, enhancing turnkey integration. Business impact: lowers procurement complexity and accelerates commissioning by providing necessary accessories. Application: rapid deployment in new builds or retrofits where safety, sensing, and control coordination are required. Combined with UL Listed and cUL Certified status, the solution supports regulatory compliance and robust lifecycle performance.

Get a Quick Quote for a Eaton STS368NW33-1B00

Chat with us on WhatsApp - fast responses guaranteed

Need to speak with someone? We'll call you back within 2 hours during business hours

Interested in Eaton STS368NW33-1B00? Enquire Now

FAQs

For proper installation, ensure the unit is mounted in a location that allows access to the 1NO/1NC auxiliary contacts and the control coil. Verify compatibility with your MCC or switchgear, maintain clearances around the 23.15 in depth, 72.5 in height, and 47.23 in width cabinet, and follow local electrical codes when wiring 120 Vac coil circuits and the 600 Vac / 250 Vdc power paths.
Key specs include a 1200 A amperage rating, 120 Vac coil voltage, and voltage ratings of 600 Vac and 250 Vdc. It is a three-pole, fusible device with a NEMA 4X enclosure, designed for rugged industrial environments. The unit also provides 1NO/1NC auxiliary contacts for signaling and interlocking purposes.
Yes. The STS368NW33-1B00 is UL Listed and cUL Certified, confirming compliance with recognized safety standards for industrial electrical protection devices. This certification supports regulatory acceptance in North America and simplifies supplier qualification in safety-critical installations.
Absolutely. The unit includes 1NO/1NC auxiliary contacts and catalog notes indicating 480V CPT, AER/GF Relay & Sensors, enabling straightforward integration with PLCs, relays, and remote control circuits. This supports centralized monitoring, interlock schemes, and faster fault diagnosis in complex power systems.
This model is ideal for heavy-duty motor feeders, critical process lines, and main distribution networks in manufacturing, mining, and infrastructure facilities. Its NEMA 4X enclosure provides outdoor and washdown resilience, while the high current rating and voltage flexibility support robust safety interlocks and rapid, auditable shutdowns.