This 1 channel solid state relay module provides reliable low-level trigger control for AC load switching applications. Designed for DIY electronics and industrial control systems, it enables safe interfacing between low-voltage DC circuits and 240VAC loads with complete electrical isolation
Operating at either 12V DC input voltage (user-selectable), the module features reverse polarity protection to avoid damage from incorrect power connections. The low-level triggering system activates the relay at 0-4.5V (12V version), with clear status indication through built-in LED indicators. The optical isolation design ensures strong anti-interference capability and stable performance across 10 million switching cycles
Specification:
Type: 1 Channel
Voltage: DC 12V
Quiescent Current: 0mA
Operating Current: 13.8mA (Maximum)
Triggering Method: Low-level Triggering
Load Voltage: 240V AC
Load Current: 2A
Service Life: 10,000,000 Times
Switching Frequency: ≤5KHz (Maximum)
Structural Dimensions: 25*34*25mm(0.98*1.34*0.98in)
Positioning Hole Dimensions: 17.4*28.4mm(0.69*1.12in)
Color: Blue Black
Voltage Range:
12V Low Level Trigger Module:
0 - 4.5V DC: Relay is ON (connected)
5.5 - 12V DC: Relay is OFF (disconnected)
Package List:
2 × SSR Module
Note:
DC +: positive power supply
DC-: connect power negative
The CH terminal is the trigger terminal of the module. When there is a trigger signal, the output switches (A, B) of the solid state relay will close. The load will be conductive