4B Components WDB29V3C Bearing Temperature Sensor

The 4B Components WDB29V3C Bearing Temperature Sensor is a PT100 RTD‑type probe designed for temperature monitoring in bearing housings on rotating equipment, delivering resistance‑based readings from a PT100 element. It uses a PT100 RTD with 100 ohms at 0°C, rising with temperature to about 138.4 ohms at 100°C, and is driven by a 1 mA sensing current to minimize self‑heating; the unit features a 1/2 in NPT conduit entry for mounting. In 4B's WDB2 bearing-sensor family, the WDB29V3C is the continuous PT100 RTD option, and it is designed to connect to PLCs or hazard‑monitoring systems; many catalog pages note a nine-foot attached cable for field wiring, enabling installation on motors, gearboxes, and other rotating equipment.