Texas Instruments 29PSL012-163 009R04 High Limit Pressure Switch

The Texas Instruments 29PSL012-163 009R04 High Limit Pressure Switch is a snap-acting SPST device from Texas Instruments designed for high‑pressure limit protection in industrial pressure monitoring and safety control systems. It triggers a circuit disconnect when the preset high‑pressure limit is reached and requires a manual reset to restore operation. The unit supports panel or line mounting (configuration dependent) and is compatible with hydraulic equipment, pneumatic systems, and industrial process controls. Used in hydraulic equipment, air compressors, refrigeration equipment, and other process-control installations, it provides reliable overpressure protection to help prevent equipment damage and maintain safe operation. Common replacements include high limit pressure switches, manual reset pressure switches, and industrial pressure safety switches for retrofit or preventive maintenance.