Relay Cards

Libratherm offers four and eight channel Relay Cards. These cards are mainly designed for interfacing low level switching signal outputs coming from PLC, SCADA, DCS etc.. to the external AC/DC operated switching devices (like contactors, solenoid valves, lamps, motors etc..in industrial automation control application).Various types of such cards are available viz. Single changeover contact card, (1 C/O) two changeover contact card (2 c/o) operating on 12 or 24 VDC supply.
Libratherm also offers AC and DC solid state relay cards (using Triacs and Bipolar Transistors) for 4 or 8 channel controls. AC solid state relay card accepts DC controls signal of (0-5) or (0-10) VDC and can switch any single phase AC load rated at 5A @ 230VAC . DC solid state relay cards also accept (0-5) or (0-10) VDC control signal and can switch the DC load of 5A @ 24VDC (max). The solid state relay cards are useful for fast switching (less than 1 second time) of AC or DC loads. The LED indication for each input control signal is also provided. Each output is All the relay cards can be mounted on the plane surface or can be mounted on universal DIN size rails.
Electromechanical Relay Cards
(for 4 channel and 8 channel)
DC Input : (5 to 24)VDC
Input Indication : By RED LEDs.
Contact Outputs : Model Wise

C/O – 5 A @ 230 VAC x 4 : RLY-4/1

C/O – 5 A @ 230 VAC x 8 : RLY-8/1

C/O – 6 A @ 230 VAC x 4 : RLY-4/2

C/O – 6 A @ 230 VAC x 8
(C/O = Changeover contacts) : RLY-8/2
DC to AC Solid State Relay Cards x 8
Model : SSR-8/AC

DC Input : (5 to 24) VDC

AC output : 110 VAC / 230 VAC Input / Output are optically isolated
DC to DC Solid State Relay Card
Model

DC Input : (3 to 30) VDC

DC Output : 12 VDC or 24 VDC

Max. current : 2 A @ 12 VDC / 1 A @ 24 VDC

Input / Output : Optically isolated

Output type : Open collector (NPN transistor)