DC 12V 4 Channel RS232 Relay Board PC USB DB9 Interface Relay Module Serial2727

RS232 DB9 female interface. 1 RS232 relay. Standby current (all relays closed) 18MA, 1-way relay "open" 50MA, 2-way relay "open" 81MA, 3-way relay "open" 110MA, 4-way relay "open" 141MA. Relay load current: maximum 10A.

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