Eaton STS367ND61 Shunt Trip Safety Switch - UL Listed
Part Number: STS367ND61
Quick Summary
Eaton shunt trip safety switch protects electrical equipment by rapidly disconnecting power in fault conditions. Engineers often contend with nuisance trips, unclear wiring, and slow fault response that impair uptime and increase maintenance costs. This unit carries UL Listed and cUL Certified marks, with a rugged NEMA 12/3R enclosure to perform in industrial environments. Designed for seamless integration into standard control panels, it supports an 800 A load with a 24 Vdc coil, delivering reliable protection and long-term cost savings for critical systems like motor control centers and switchgear assemblies.
Product Information
Extended Description
STS367ND61 Eaton: Eaton Shunt trip safety switch, 800 A, 1NO/1NC alarm switch only, Coil V: 24 Vdc, NEMA 12/3R, 600 V, Three-pole, Fusible with neutral
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367ND61
UPC
786685829821
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
Enclosure
NEMA 12, NEMA 3R
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
800A
Coil voltage
24 Vdc
Protection
Fusible with neutral
Voltage rating
600 V
Contact configuration
1 NO/NC
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - STS367ND61
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 800 A Amperage Rating → Business Impact: Enables reliable protection for high-current loads without nuisance tripping, reducing unplanned downtime and improving equipment availability in MCCs and industrial control panels. Application: Suitable for large motors and distribution circuits in harsh environments. Feature: 24 Vdc Coil → Business Impact: Compatible with common control circuitry, enabling simple wiring, faster commissioning, and reduced control panel complexity. Application: Integrates with standard PLC outputs and control relays. Feature: 600 V Voltage Rating → Business Impact: Supports single- and three-phase distribution safely, expanding where the unit can be deployed while maintaining clearance and clearance margins. Application: Industrial power distribution and switchgear. Feature: 1 NO/NC Alarm Contact → Business Impact: Provides signaling for interlocks and system monitoring, improving fault diagnostics and preventive maintenance scheduling. Application: Panel alarms and control interlocks. Feature: NEMA 12/3R Enclosure → Business Impact: Resists dust, water, and corrosion in demanding environments, reducing enclosure maintenance and extending service life. Application: Industrial plants, manufacturing floors, and outdoor-rated interiors. Feature: Three-pole Configuration → Business Impact: Simplifies integration in three-phase systems, delivering balanced control and streamlined wiring in switchgear. Application: MCCs, motor starters, and distribution panels. Feature: Fusible with Neutral → Business Impact: Enables safer fault isolation with neutral protection, supporting compliant shutdown sequences and easier wiring practices. Application: Neutral-aware control circuits and fused feeder lines.
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FAQs
The STS367ND61 is a three-pole shunt trip unit with a 24 Vdc coil and 1 NO/NC alarm contact. Plan for a three-phase feeder connection, ensure neutral is accommodated for the fusible with neutral configuration, and mount within a NEMA 12/3R enclosure. Wire routing should minimize coil interference and follow standard control wiring practices to simplify commissioning and future maintenance.
Key specs include an 800 A amperage rating, 24 Vdc coil voltage, 600 V voltage rating, and a three-pole configuration with 1 NO/NC contact. It is designed for fusible with neutral protection and is housed in a NEMA 12/3R enclosure, suitable for industrial environments. These specs support reliable fault isolation in demanding switchgear and control panel applications.
Yes. STS367ND61 features a NEMA 12/3R enclosure, which provides protection against dust, dirt, and water ingress in typical industrial settings. This enclosure rating helps reduce enclosure maintenance, supports longer service life, and ensures reliable performance in manufacturing floors, warehouses, and other challenging environments.
The product is UL Listed and cUL Certified, signaling adherence to recognized safety standards. These certifications simplify regulatory approvals, facilitate customer audits, and support fast commissioning in diverse markets. The combination of UL and cUL markings is particularly valuable for global projects and panel builder approvals.
By delivering reliable fault isolation with an 800 A rating and a 24 Vdc coil, STS367ND61 minimizes unplanned downtime and reduces nuisance trips, translating to lower maintenance costs and higher production uptime. The rugged NEMA enclosure and solid warranty support long-term durability, reducing replacement frequency and optimizing total cost of ownership for protected switchgear.