Siemens 3RT2028-2AK60 Three-Phase AC Contactor

The Siemens 3RT2028-2AK60 is a three-pole power contactor (AC-3) with a 110/120 V AC coil and a 38 A, 18.5 kW rating when switching at 400 V. The coil supports 50/60 Hz operation (110 V AC at 50 Hz, 120 V AC at 60 Hz), and the device provides one normally open and one normally closed auxiliary contact, all arranged with spring-loaded terminals in the compact S0 enclosure. Main contacts are rated for up to 690 VAC, enabling safe switching of motors and other inductive loads, with the 3 poles handling loads up to 38 A. Designed for panel-mounted motor control and other AC-3 duty switching, the 3RT2028-2AK60 offers reliable operation in industrial automation environments.