DILM power contactors. For DC operated contactors DILM7 – DILM15 applies: • built-in varistor protection circuit. For DC operated DILM17 contactors – DILM170 applies: • protection circuit built into the control electronics. For AC operated DILM115 contactors – DILM170 applies: • protection circuit built into the electronic control system. For DILM7 – DILM150 applies: • with mirror contacts. Contacts according to EN 50012.