Siemens Contactor This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Contactors Buyer is in search of a Siemens contactor - 600VAC Max 100A 3P 120V. Part Part Number: 3TF4811-0AK6 Material: Thermoplastic Material Grade: Technical Specifications Category:Contactors Dimensions0.0 x 0.0 inch Annual Usage:2.0 Are you looking for suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) to provide manufacturing services for machine tool industry, automotive industry? For more information visit MFG.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your online quoting experience Contactors: Contactors are used to connect and disconnect motors from power supplies when a preset load value is reached.