Siemens AG 3RT2036-1AK60 Three-Phase AC Contactor

Siemens 3RT2036-1AK60 is a SIRIUS three-pole power contactor (AC-3e/AC-3) designed for motor control in industrial panels, providing three normally open main contacts and an auxiliary contact pair (1 NO + 1 NC) with screw terminals for robust wiring in the compact size class S2. The coil is rated 110 V AC at 50 Hz or 120 V AC at 60 Hz, enabling operation across common 50/60 Hz power systems. The main circuit is specified for up to 51 A and 22 kW at 400 V, with a maximum main voltage of 690 V and a surge resistance up to 6 kV, making it suitable for demanding motor-start applications. Net weight is about 0.985 kg, reflecting its compact construction while delivering reliable three-phase switching for systems up to 400 V. This model belongs to the 3RT2 family and is appropriate for loads such as conveyors, pumps, and fans where controlling three-phase motors with an auxiliary feedback or interlock signal is required.