Eaton STS368NW32-1B00 Shunt Trip Safety Switch - UL Listed
Part Number: STS368NW32-1B00
Quick Summary
Eaton STS368NW32-1B00 Shunt Trip Safety Switch provides emergency trip control for three-pole power circuits. In fast-moving plants, manual isolation can delay shutdowns and increase risk during faults. UL Listed and cUL Certified, with a rugged NEMA 4X enclosure and a 600 Vac / 250 Vdc rating, support regulatory compliance in harsh environments. This switch ships with 1NO/NC auxiliary contacts, and is designed for seamless integration into industrial control panels and MCCs. The combination of high amperage (1200 A) and robust enclosure protects personnel and equipment, while enabling fast, remote tripping for improved uptime and operational safety. Its straightforward mounting and factory-tested components shorten commissioning time and reduce life-cycle costs.
Product Information
Extended Description
STS368NW32-1B00 Eaton: Eaton Heavy Duty Shunt Trip Safety Switch, 1200A, Three-pole, Fusible, 600 Vac, 250 Vdc, NEMA 4- EnclosureX
Product Name
Eaton Heavy Duty Shunt Trip Safety Switch
Catalog Number
STS368NW32-1B00
UPC
786689314361
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/NC Aux Con, 480V CPT and 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
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - STS368NW32-1B00
Feature: 1200 A amperage rating enables reliable interruption of large fault currents. Business Impact: Enhances protection for heavy electrical loads, reducing arc flash risk and equipment damage. Application: Suitable for MCCs, switchgear feeders, and large motors. Feature: 120 Vac coil voltage supports remote control from standard control circuits. Business Impact: Simplifies panel design and wiring, lowering installation time and error potential. Application: Industrial automation panels and control rooms. Feature: 600 Vac / 250 Vdc voltage ratings with fusible protection. Business Impact: Provides versatile protection across AC and DC circuits, improving safety margins and compliance. Application: Power distribution networks and critical machinery. Feature: NEMA 4X enclosure construction. Business Impact: Delivers ingress protection against water, dust, and corrosion in harsh environments, reducing maintenance costs. Application: Outdoor, wash-down, and manufacturing facilities. Feature: Includes 1NO/NC auxiliary contact and integrated sensing options (480V CPT and GF Relay & Sensors). Business Impact: Enables status signaling and auxiliary interlocking without additional accessories, streamlining installation. Application: Panel interlocks and control logic in automation systems. Feature: UL Listed and cUL Certified with robust construction. Business Impact: Ensures regulatory compliance and reliability for mission-critical applications, speeding procurement and installation. Application: Engineering specifications for electrical protection clusters and safety interlocks.
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FAQs
When replacing, verify mounting footprint and enclosure compatibility with the existing panel opening, confirm coil voltage of 120 Vac, ensure the auxiliary contact configuration is 1NO/1NC, and check that the unit supports the required fault current rating. Plan for proper wiring to the control circuit and ensure coordination with existing Eaton devices for seamless operation.
Key specifications include a 1200 A amperage rating, 120 Vac coil voltage, and voltage ratings of 600 Vac / 250 Vdc. The device is fusible and configured as a three-pole unit, with a NEMA 4X enclosure to withstand harsh environments.
Yes. The NEMA 4X enclosure provides corrosion and water ingress protection, UL Listed and cUL Certified compliance, and a robust three-pole, fusible design that suits motor control centers operating in challenging environments where reliability and safety are critical.
The device is UL Listed and cUL Certified, signaling compliance with US and Canadian safety standards. These certifications reduce regulatory risk for equipment used in critical power protection, facilitate procurement with regulated buyers, and support safe integration into compliant electrical systems.
The device’s rugged construction, remote-tripping capability, and auxiliary contacts reduce maintenance needs by simplifying diagnostics and signaling. The fast, reliable isolation minimizes downtime during faults, providing tangible ROI through increased uptime, safer operations, and longer service life for downstream switchgear.