The 2TLA020051R5700 is an ABB Adam safety sensor unit that outputs OSSD (Output Signal Switching Device) signals — the standard safety-rated digital output for connecting to a safety PLC, safety relay, or light-curtain controller. It also provides an information output for non-safety status. The fixed 8-pole M12 male connector carries both the OSSD pair and the auxiliary signal, so the wiring is a single pre-terminated cable run back to the control cabinet. The IP69K rating means the housing and connector withstand high-pressure, high-temperature washdown — this is a unit designed for food-and-beverage or pharmaceutical lines where sanitation cycles are aggressive.
The 8-pole M12 connector is fixed (not field-attachable), so the mating cable must be ordered with the correct pinout for OSSD + information output. The yellow housing is a standard safety-device color per IEC 61496 — it signals to maintenance and operators that this is a safety-related component, not a standard presence sensor. The kit includes four DA 1B protection plates and four DA 2B spacer rings; these are alignment and mounting accessories specific to the Adam sensor family, so you don't need to source them separately for a first install.
