As you can see in the schematic the 12V battery (or use other voltages) is connected with the plus at terminal T1 and minus at terminal T2. The contact 1 and 4 are connected together as 2 and 3 are ...
The Relays Group of CUI Devices has introduced a line of signal relays for for low-level current switching in industrial, security, test and measurement applications. The will switch up to 2A or 3A in ...