2pcs 1Way 30A Relay Expansion Module Low Level Trigger with Optocoupler Isolation 12V

Feature: 1. Power supply reversed polarity protection makes it worry free to connect the power supply wrong. 2. Large load capacity, maximum 30A current. 3. Low level signal trigger. 4. Optocoupler isolation, strong driving capability, stable performance. 5. Simple circuit structure, easy to connect wire. Specification: Item Type: Relay Module Operating Current: 80mA Contacts: A group of 30A normally open + normally closed (isolated from the input) Input: Low level (0V) active, require drive current at least 0.5mA. Package List: 2 x Relay ModulePower supply reversed polarity protection makes it worry free to connect the power supply wrong. Large load capacity, maximum 30A current. Low level signal trigger. Optocoupler isolation, strong driving capability, stable performance. Simple circuit structure, easy to connect wire.