Siemens 5ST3020 Fault Signal Contact for Circuit Breakers

The Siemens 5ST3020 is a fault signal contact designed for use with Siemens circuit breakers, including series 5SL, 5SY, and 5SP. It features one normally open (NO) and one normally closed (NC) contact, providing a signal upon a fault condition or tripping event. For integration with the 5SU1 series, the 5ST3805-1 handle coupler is required.

This accessory is crucial for systems that need to detect and react to circuit breaker trips, such as in safety interlocks, alarm systems, or remote fault indication. It ensures timely notification and response to electrical faults.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5ST3020. We provide reliable industrial automation components, helping you maintain efficient and safe operations with quality surplus inventory.