Sensor/Actuator Connector M12. In today's world, custom cable lengths are often required. To meet this demand, Weidmüller offers a wide portfolio of connectors for custom assembly. Connectors and sockets for custom assembly for M8, M12, M16, and 7/8" connections are very robust and particularly suitable for mechanical engineering. The M12 connectors come with four different connection technologies to choose from. The solder connection is characterized by a high contact density in a small area. In this technology, the stripped conductor is soldered to the contacts, resulting in good electrical conductivity.