Siemens 3LD2203-0TK51 Three-Phase Industrial Contactor

Siemens 3LD2203-0TK51 is a 3-pole SENTRON switch disconnector (main switch) rated Iu 32 A, designed for panel-mounted isolation in low-voltage electrical distributions. With an AC-23 duty at 400 V, it provides up to 11.5 kW of switching capacity, making it suitable for safely isolating motors and feeders within control panels or switchgear. The device features a front-mounted, rotary operating mechanism housed in black, with four-hole mounting for the handle to simplify installation and manual operation. Front protection is listed as IP65, indicating dust and water ingress resistance from the panel front in typical industrial environments. This unit belongs to Siemens’ SENTRON line and is specified for 3-pole isolation in panel-mounted applications, delivering reliable open/close operation and clear visual indication of the switch position as part of standard electrical distribution and automation setups.