Siemens 3TH8031-0B Industrial Power Contactor

Siemens 3TH8031-0B Contactor is a 3-pole power contactor with a 24 V DC coil, designed to switch AC loads in motor control and equipment circuits. It provides three normally open contacts and one normally closed contact, enabling primary switching and interlock schemes in a compact package. The load side is rated for 16 A (AC-3) at typical industrial voltages, making it suitable for controlling small to mid-size three-phase motors, pumps, and conveyors in automation panels. This model is part of Siemens Furnas Electric Co's 3TH family and is commonly encountered in control panels and starter assemblies where reliable isolation and rugged switching are required.