Siemens 6SN1111-0AB00-0AA0 surge arrestor. This simodrive 6a0 surge arrester for power supply 10kW for internal and external cooling.
We no longer test or support these drives and accessories. This unit is available as surplus from old test rigs. However we are happy to recommend UK and European companies whom can deal with your Siemens Sinumerik CNC; simodrive, simoreg and motor problems.