12 V AC/DC Relay Module with COM, NO and NC Volt-Free Contacts **12 V AC/DC input:** Activated by a 12 V signal in either alternating current (AC) or direct current (DC).

1. **12 V AC/DC Input:** Activated by a 12 V signal in either alternating current (AC) or direct current (DC).

2. **Operates as a Conventional Relay:** Not limited to electric door locks. Its volt-free contacts can control other compatible devices and electrical circuits.

3. **COM, NO and NC Contacts:** Provides common, normally open and normally closed contacts to suit different installations and automation systems.

4. **Multiple Applications:** Suitable for audio and video door entry systems, access control, lighting, alarms, automation systems and electrical projects.

5. **Door Entry System Protection:** Allows the electric door lock to be powered by a separate power supply, reducing the risk of overload or damage to the electronic outdoor panel.

6. **LED Operating Indicator:** Provides a visual indication when the module is receiving a signal and the relay is activated.