Siemens 3RT2025-1AK60 Three-Phase Heavy-Duty Contactor

Siemens 3RT2025-1AK60 is a three-pole heavy-duty contactor from the Sirius 3RT2 family, engineered for AC-3e/AC-3 motor control on 400 V systems and rated for 17 A (7.5 kW at 400 V). It features screw terminals and the S0 size footprint for reliable panel mounting, and includes an auxiliary block with 1 normally open and 1 normally closed contact to provide simple control signaling or interlocking. The coil operates at 110 V AC (50/60 Hz), with related catalog listings also shown for 120 V AC in some regions. This unit is designed for switching three-phase loads such as motors, pumps, conveyors, and fans in industrial equipment and OEM panels, and is commonly used in conjunction with other Siemens control components to form compact motor starter assemblies.