Relay board RB-4 Featured

Relay board RB-4 has 4 SPDT type relays on it. For activating the relays 4 independent TTL level signals are used. Positive logic is used. Input signals are opto-isolated. Relay board RB-4 can be easily connected with all Audioms Automatika doo motion controllers.

For powering relay board RB-4, a 24VDC / 150mA voltage supply should be provided.

On the board, there are LED lights indicating whether there is power supply, as well as indicators of the states of relays.

Relay board RB-4 is fixated on a plastic base that is placed on the standard DIN rail.

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Function Description
Number of relay outputs 4
Relay output type SPDT
Relay activation* TTL signal (+5V), 4 mA, positive logic

Output characteristics of a relay
in the case of resistive load

Direct current
30 V DC max
10 A DC max
300 W max
Alternating current
300 V AC max
15 A AC max
2770 VA max
Power supply 20–26 VDC / 150 mA (recommended 24 VDC)
Mounting DIN rail
Dimensions 103 mm x 90 mm x 30 mm
Weight ~ 120 g

NOTE: Specifications are subject to change without notice
* On request other relay activation voltage levels are available


Document Description
pdfRB-4 User's manual Relay board RB-4

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