4B Components TS2V4CAI TouchSwitch Belt and Pulley Alignment Sensor

The 4B Components TS2V4CAI TouchSwitch Belt & Pulley Alignment Sensor is a 24 VDC belt misalignment sensor that instantly signals belt tracking problems via a volt-free relay output rated for up to 250 VAC, 5 A non-inductive. Engineered for bucket elevators and belt conveyors, the TouchSwitch is an electro-mechanical switch with no moving parts; its hardened stainless steel contact face resists wear and debris, and it is explicitly described as not a rub block, with an LED indicator and an external test feature for quick verification. The assembly includes a 3 m long, 6-core cable, and the unit’s housing measures 89 mm in diameter and 45 mm high, weighing about 0.77 kg. The TS2V4CAI operates from 24 VDC with a supply current of approximately 60 mA and is rated for ATEX/IECEx Zone 21 and CSA Class II Div1 environments; it’s typically installed in paired configurations on opposite sides of the machinery to monitor belt and pulley alignment and trigger a safe shutdown if misalignment occurs.