Product Description
DC 5V 4 channel relay module 30A with optocoupler isolation supports High and Low Level Trigger Relay for Smart Home PLC

Features:
Using double-sided FR-4PCB board
Using high-power relay, control the load up to 30A
With each optocoupler isolation, anti-interference ability
Black 9500 terminals, more convenient for high-current wiring
Each circuit has a relay on LED indication
The modules comply with international safety standards with isolation slots in the control and load areas
 
Applications:
PLC automation equipment control, industrial system control, internet of things control, home intelligent control, electronic hobbyist development experiment, all kinds of circuit modification
 
Supply voltage: 5V
Quiescent current: 5mA
Maximum operating current: 190mA
Trigger mode: low trigger, high trigger
Load voltage: DC 30V or AC 250V
Load current: 30A
Relay life: more than 100,000 times
Product weight: about 385G
Size: about 129 * 72 * 22MM
 
Trigger voltage range：

5V low trigger module: 0-2VDC relay on (ON), 3-5VDC relay off (OFF)
 
5V high trigger module, 3.3-5VDC relay (ON), 0-2.5VDC relay off (OFF)