6ES72221HD220XA0 Connection ET 200M

The Siemens 6ES7222-1HD22-0XA0 is a 4-channel relay output expansion module (EM 222) for the SIMATIC S7-200 PLC series. Each channel provides a relay contact rated at 10 A, supporting switching of loads from 5–30 V DC or 5–250 V AC with galvanic isolation between channels in groups of four.