CSER Series Relay Modules offer an extremely compact solution for interfacing relays with solid state technology. At 6 mm thickness they are the most compact & versatile relay module system. The system comprises of a Slim Relay socket and standard solid state relays. Standard JX Series jumpers can be used for busing at input and output of the relay sockets. A clear green LED indicates input actuation. The compact relay modules are identified using standard K series marking tags. CSER series comes with Zero Cross Turn on & Bipolar Transistor / MOSFET Output, This Series is compatible with TTL and CMOS Output.