Relay / AC SSR / DC SSR Cards

 

Model Wise Description :

Model	Product Description	Size (mm.)
RLY-8	Relay Card	As per standard
SSR-8/AC	AC Solid State Relay Card	As per standard
SSR-8/DC	DC Solid State Relay Card	As per standard

Description :

Libratherm offers four and eight channel Relay Cards. These cards are mainly designed for interfacing low level switching signal outputs coming from PLC or Process Controller 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) VDC 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 AC solid-state relay cards are useful for fast switching (less than 1 second switching time) of AC loads. The LED indication for each input / output is also provided on the card all the relay cards can be mounted on the plane surface or can be mounted on universal DIN size rails.

Technical specifications :

	Relay Card	AC Solid State Relay Card	DC Solid State Relay Card
Model	RLY-8	SSR-8/AC	SSR-8/DC
Control Input Pulse or Level	5 to 24 VDC	5 to 24 VDC	5 to 24 VDC
No. Of Outputs	4, 6 or 8	4, 6 or 8	4, 6 or 8
Output type Opto isolated from the Input	1 C/O or 2 C/O contacts rated for  5A @ 230VAC and 24VDC.	0 VAC (OFF state) and AC Line Voltage (ON state) rated for max. 10A@230VAC	0 VAC (OFF state) and DC Supply Voltage (ON state) rated for max. 1A @ 24VDC
Output Operating Voltage	12 or 24 VDC for relay coil	230 VAC or 110 VAC for external AC load	12 or 24 VDC for open collector output
Mounting	DIN rail or surface	DIN rail or surface	DIN rail or surface
Size	As per standard	As per standard	As per standard

User should specify whether the input is active low or high. In other words, when the input signal is High the Output should be On or when the input signal is Low the output should be On.