Eaton STS367FP64 Shunt Trip Safety Switch - NEMA 4
Part Number: STS367FP64
Quick Summary
Eaton STS367FP64 shunt trip safety switch provides fast protection for industrial switchgear. For engineers, the challenge is reliable remote tripping without nuisance alarms during startup or fault conditions. This device carries cUL Certified and UL Listed safety approvals and is designed for harsh environments with a NEMA 4, painted steel enclosure, plus fusible protection. The 24 Vdc coil and 1 NO 1 NC contacts enable precise control from centralized protection schemes, while the 800 A rating supports heavy loads. Implementing this switch strengthens regulatory compliance, reduces downtime, and improves maintenance and reliability for panel builders and end users in manufacturing and critical infrastructure.
Product Information
Extended Description
STS367FP64 Eaton: Eaton shunt trip safety switch, 800 A, Three pole, 600 Vac, 250 Vdc, Alarm switch, 24 Vdc, 1 NO 1 NC, NEMA 4, Painted steel, Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS367FP64
UPC
786685829647
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 Vdc
Protection
Fusible
Voltage rating
600 Vac, 250 Vdc
Contact configuration
1 NO 1 NC
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - STS367FP64
Feature: 800 A, three-pole construction with a 24 Vdc coil is designed for high-current protection and precise remote tripping. Business Impact: This enables fast disengagement of large loads, reducing fault impact and downtime. Application: Ideal for switchgear and motor control centers in demanding industrial environments. Feature: NEMA 4 painted steel enclosure provides rugged, weather-resistant protection. Business Impact: Enhances reliability in harsh environments and simplifies field maintenance by withstanding washdowns, dust, and moisture. Application: Outdoor or damp indoor facilities common in manufacturing and process industries. Feature: Auxiliary contacts include 1 NO and 1 NC (alarm switch). Business Impact: Enables real-time status signaling to PLCs or annunciators, improving operator awareness and preventive maintenance. Application: Control rooms and remote monitoring across enterprise protection schemes. Feature: Fusible protection capability adds fault isolation and coordinated protection. Business Impact: Improves selective coordination with upstream devices and enhances overall safety. Application: Industrial protection schemes in MCCs and electrical rooms. Feature: Wide voltage and load ratings—600 Vac / 250 Vdc, 800 A, with 24 Vdc coil. Business Impact: Ensures compatibility with mixed AC/DC systems and supports high-energy, high-demand applications. Application: Heavy-duty panel boards, substations, and critical process equipment. Feature: Certifications and build quality—cUL Certified and UL Listed in a NEMA 4 enclosure. Business Impact: Streamlines compliance and installation acceptance in regulated environments. Application: Panel builders, integrators, and end users seeking proven protection solutions.
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FAQs
The STS367FP64 functions as a remote-controlled tripping device for circuit breakers within industrial switchgear and motor control centers. It enables rapid disconnection on control signals, reducing exposure to faults and protecting personnel and equipment. Its 800 A rating supports heavy motor loads, while the 24 Vdc coil integrates with common control systems.
Key specs include an 800 A amperage rating, three poles, a voltage rating of 600 Vac / 250 Vdc, and a 24 Vdc coil. The device provides 1 NO and 1 NC auxiliary contact (alarm switch) for signaling, and it is designed as fusible protection to coordinate with upstream protective devices.
Yes, the STS367FP64 is cUL Certified and UL Listed for safety. It comes in a NEMA 4 enclosure with painted steel construction, suitable for harsh or outdoor environments and demanding industrial applications.
Plan for a three-pole installation with a 24 Vdc control signal and ensure compatible mounting within standard switchgear footprints. The NEMA 4 enclosure supports outdoor or washdown environments, and the built-in auxiliary contact provides signaling to PLCs or alarms to confirm trip status.
The rugged construction reduces maintenance frequency in harsh environments, minimizes downtime during fault conditions, and improves protective coordination with upstream devices. The certified safety approvals help ensure regulatory compliance, while the compact integration with existing control circuits simplifies installation and long-term reliability.