Eaton STS366UP6 Shunt Trip Safety Switch - cUL UL Listed
Part Number: STS366UP6
Quick Summary
The Eaton STS366UP6 shunt trip safety switch delivers reliable circuit protection for motor control panels and switchgear. In fault conditions, timely isolation is critical, yet too many installations suffer from unsafe or delayed responses. With a NEMA 4 painted steel enclosure and a 600 A, three-pole design, this unit combines rugged durability with rapid tripping from a 24 Vdc coil. Its UL Listed and cUL Certified marks support compliance across North American industrial facilities, while the 600 Vac / 250 Vdc ratings enable versatile integration in mixed voltage systems. For buyers seeking safety, reliability, and lower lifecycle costs, this device offers a clear, value-driven choice for modern protection schemes.
Product Information
Extended Description
STS366UP6 Eaton: Eaton shunt trip safety switch, 600 A, Three-pole, 600 Vac, 250 Vdc, 24 Vdc, NEMA 4, Painted steel, Non-Fusible, 600 V
Product Name
Eaton shunt trip safety switch
Catalog Number
STS366UP6
UPC
786685829357
Product Length/Depth
12.43 in
Product Height
62.97 in
Product Width
28.29 in
Product Weight
140 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 4
Enclosure material
Painted steel
Number Of Poles
Three-pole
Type
Shunt trip safety switch
Amperage Rating
600A
Coil voltage
24 Vdc
Protection
Non-Fusible
Voltage rating
600 Vac, 250 Vdc
Feature: 600 A amperage rating with a three-pole configuration. Business impact: robust main disconnect capability supports high-load applications while delivering reliable fault isolation, reducing downtime in MCCs and large control panels. Application: ideal for motor control centers and switchgear where high current interruption is required. Pitch: aligns with heavy industry needs and supports scalable protection strategies. Feature: 24 Vdc coil for remote tripping. Business impact: enables integration with low-voltage control systems, PLCs, and safety interlocks to coordinate fast shutdowns without manual intervention. Application: widely used in automated lines, conveyors, and process equipment where remote actuation improves safety and throughput. Feature: 600 Vac / 250 Vdc voltage ratings and non-fusible design. Business impact: simplifies system design by accommodating both AC and DC environments while minimizing fusion-related maintenance costs. Application: suitable for mixed-voltage plant sections and retrofit projects seeking dependable protection. Feature: NEMA 4 painted steel enclosure. Business impact: provides weatherproof and washdown-ready protection, extending service life in harsh environments and reducing corrosion-related downtime. Application: use in outdoor switchgear, production floors, and outdoor-rated installations where environmental resistance matters. Feature: Certifications and build quality (cUL/UL). Business impact: supports regulatory compliance, simplifies procurement, and reduces commissioning risk. Application: aligns with industrial safety programs and auditing requirements, delivering predictable performance across sites.
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FAQs
The STS366UP6 provides remote tripping of a main disconnect in industrial control panels, switchgear, and motor control centers. With a 600 A rating, three poles, and 600 Vac / 250 Vdc compatibility powered by a 24 Vdc coil, it enables rapid isolation during faults and supports safe shutdown sequences.
Yes. The STS366UP6 utilizes a NEMA 4 painted steel enclosure, designed to resist water and dust intrusion in harsh environments. This makes it suitable for production floors, outdoor switchgear, and washdown areas, reducing corrosion risk and extending service life while maintaining safety integrity.
The device uses a 24 Vdc coil to trigger the shunt trip, enabling remote actuation from PLCs or low-voltage control circuits. It is a non-fusible, three-pole safety switch rated for 600 Vac and 250 Vdc, designed for integration with standard control logic in industrial automation environments.
The STS366UP6 carries cUL Certified and UL Listed marks, ensuring compliance with North American electrical safety standards. Its robust enclosure and non-fusible design support regulatory requirements for main disconnect devices in industrial automation and power distribution networks.
For maximum return on investment, install the 3-pole STS366UP6 at the main disconnect in MCCs or motor drives, wiring for a 24 Vdc control signal to enable remote trip during faults. Its NEMA 4 enclosure reduces maintenance in harsh environments, while the 600 A rating and solid warranty lower downtime and lifecycle costs.