Device for Measuring a Condition of an Electric Switch, Electric Switch and Method for Measuring a Condition of an Electric Switch

An electrical switch comprising:

• an apparatus for measuring a state of the electrical switch, wherein the apparatus is configured to tap a voltage at main contacts of the electrical switch, wherein the apparatus comprises a first high voltage (HV) line comprising a first contact, a second HV line comprising a second contact, and at least two high-impedance resistors;
• a first outer main contact;
• a second outer main contact;
• and
• a housing,
• wherein the first contact and the second contact are each directly connected to a main contact, and
• wherein the voltage at the main contacts is tapped inside the housing of the electrical switch.

A method for measuring a state of an electrical switch, the method comprising:

• providing an electrical switch having a first outer main contact and a second outer main contact;
• providing an apparatus for tapping a voltage at a first main contact and a second main contact, wherein the apparatus has a first contact, a second contact, at least two high-impedance resistors, a first high voltage (HV) line and a second HV line;
• directly connecting the first contact to the first main contact;
• directly connecting the second contact to the second main contact;
• and
• linking the HV lines to an A/D converter.