When a mechanical interlocking sequence requires the addition of an electric component, that should be done using a key-activated commutator The commutator can have several uses: machine activation, electric cabinet, etc.

When the key is at 90º, it is trapped and one of the contacts is open and the other is closed. Turning the key at 0º position, it is released and the contacts are inverted.

The switchboard, as every item in our catalogue, is completely compatible with the rest of our articles. As the same key format can be used, it could be utilized in any interlocking sequence even if it is composed by more items.