We offer a large selection of single channel to multi channel Relay Drivers for applications ranging from low power signal switching to high voltage, high current applications.  Quad channel relay controller we have a configuration to fit every need. 

Quad channel relay can be controlled by feeding 2 to 5 V TTL from Micro-controller Development Boards, Remote Receivers, or any other circuit which required isolated high current and high voltage switching by applying TTL voltage.  LED indication for Relay On/Off, Relay Output normally open and normally close via screw terminal for easy connection.  Clamp diodes for current limiting for self protections.  Input via berg connector.  Board can control AC or DC load.

• Input supply 12 VDC @ 170 mA
• Output  four SPDT relay
• Relay specification 5 A @ 230 VAC
  
• Trigger level 2 ~ 5 VDC
• Berg pins for connecting power and trigger voltage
• LED on each channel indicates relay status
• Screw terminal connector for easy relay output and aux power connection
  
• Four mounting holes of 3.2 mm each
• PCB dimensions 88 mm x 68 mm