With regards to AC power, the K and S code variants have a high voltage and current rating. The M12 K-Code is a 4+PE connection rated at 630 VAC and 12 A while the M12 S-Code is a 3+PE connection rated at 630 V and 16 A. With a compact size and industrial design, these connectors are great for AC motors and drives, frequency inverters, motor and control switches. Within the HARTING portfolio, there are male and female plugs, PCB mount jacks, panel feed through housings and PushPull locking options.