1 2 4 6 8 Channels 5V 12V 24V Relay Module with Optocoupler, Low and High Level Trigger Red PCB

1.  Relay Maximum load:AC 250V/10A, DC30V/10A
2. SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA
3. Module voltage Option: 5V, 12V, 24V
4. each channel module can be set high or low triggered by jumper
5. fault-tolerant design, even if the control line is broken, the relay will not operate
6. power indicator (green), 4 relay state indicator (red)
7. interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient

Module Port:
1. DC+: DC power supply positive
2. DC-: DC power supply negative
3. IN1: Channel 1 signal trigger terminal
4. IN2: Channel 2 signal trigger terminal
5. IN3 : Channel 3 signal trigger terminal
6. IN4: Channel 4 signal trigger terminal

Relay Output:
1. NC1: Channel 1 relay normally closed pin.
2. COM1: Channel 1 relay common pin.
3. NO1: Channel 1 relay normally opened pin.
4. NC2: Channel 2 relay normally closed pin.
5. COM2: Channel 2 relay common pin.
6. NO2: Channel 2 relay normally opened pin.
7. NC3 : Channel 2 relay normally closed pin.
8. COM3: Channel 2 relay common pin.
9. NO3: Channel 2 relay normally opened pin.
10. NC4 : Channel 2 relay normally closed pin.
11. COM4: Channel 2 relay common pin.
12. NO4: Channel 2 relay normally opened pin.

High And Low Level Trigger Option:
1. S1: It is option switch for channel 1 relay.
2. S2: It is option switch for channel 2 relay.
3. S3 : It is option switch for channel 3 relay.
4. S4: It is option switch for channel 4 relay.