Bourdon tube hydroelectric pressure switch, Maximum operating pressure max: 110 bar.Adjustment range: Up to 100 bar (indicated by the suffix /100).Electrical connection: Usually equipped with a cube or 6-pin connector (depending on the specific variant such as the K6).Operation: It uses a Bourdon tube that flexes under pressure, actuating one or two independent microswitches for monitoring switching points. Technical Details Supported voltage: 40 V DC / 250 V AC.Current: 1 mA to 3 A (depending on voltage and load type).