Siemens 3TB4-212-0AG1 is a four-pole AC contactor with a 110 V coil, designed for 50/60 Hz operation. It is used to switch electrical loads in control circuits, enabling reliable on/off control of connected equipment. Key identifiers include the model number 3TB4-212-0AG1 and a 110 V AC coil rating suitable for 50/60 Hz systems.
