Circuit for suppressing sparks for switch contact has triac control input is connected to load circuit point at which alternating supply voltage potential with switch contact closed triggers triac

摘要

The circuit has an electronic switch (2) in the form of a triac in parallel with the switch contact (1). The triac's control input (2c) is connected to a tapping (5) of the load circuit at which the alternating supply voltage (4) achieves a potential when the switch contact is closed that triggers the triac. A resistance in the load circuit is connected between the triac's anode and control input.