Item Name: 4-Channel 12V Relay Module with Optocoupler H/L Level Triger for Arduino Newly. Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK
Module description:
1. Maximum load on
normally open pin: AC 250V/10A, DC 30V/10A.
2. Trigger current
5mA
3. Module can be set
high level or low level trigger by jumper wire
4. Power indicator
light (green), relay status indicator light (red)
5. Module size:
Approx. 73mm * 50mm* 18.5mm.
Module interface specifications:
1. DC+ : DC power
supply positive pole
2. DC- : DC power
supply negative pole
3. IN1~IN4 : relay
signal triggering pin
Relay output:
1. Normally closed
pin (NC1~NC4) : relay normally closed
pin
2. Common pin
(COM1~COM4) : relay common pin
3. Normally opened
pin (NO1~NO4) : relay normally opened
pin
High or low level trigger option:
1. S1~S4:They are
option switch for relay 1~4
3. It is low level triger if COM pin connect to LOW
pin It is high level triger if COM connect to High.
