Schneider Electric ST08164 Safety Interlock Switch

The Schneider Electric Telemecanique ST08164 safety interlock switch is a solid-state grounded probe switch designed for dependable conductive presence detection in industrial safety interlock systems. Commonly installed on production machinery, material handling equipment, packaging machines, conveyors, and other industrial process equipment requiring conductive sensing and interlocking, it serves as an OEM direct replacement for original components in machine safety upgrades and retrofits. The package identifies MPN ST08164 and product type Safety Interlock Switch (Grounded Probe Switch). It uses a solid-state sensor that detects conductive contact through a grounded probe; operating at 105–130 V AC (50/60 Hz) with a maximum load current of 3 A, and a Normally Open (NO) circuit with turn-on delay up to 10 ms and turn-off delay up to 100 ms. Probe voltage is 12 V DC (open circuit) and the peak probe current is 1 mA. The maximum probe length is 10 ft (3.05 m). The housing is die-cast zinc, and the device is UL Recognized for industrial safety applications. It is compatible with industrial machine safety and conductive sensing systems, including machine guarding, end-of-travel detection, conveyor systems, automated production equipment, and process control environments.