Product Description
The EM 222 relay module expands an S7-200 PLC's digital output capacity by providing 8 dry-contact relay outputs. Because relay contacts can handle up to 2 A per point and switch both AC and DC voltages, it can directly drive higher-power industrial loadssuch as motor contactors, AC solenoid valves, alarm horns, and indicator lightswithout needing intermediate interposing relays