The proven PKZM0 switches motors from 0.16 to 32 A. The short‑circuit breaking capacity is now rated to 150 kA up to 12 A and 50 kA up to 32 A. The PKZM 4 also has a breaking capacity up to 50 kA. With this, current limiters become almost unnecessary. These motor‑protective circuit‑breakers are matched to the DIL contactor series, which is ideal for the configuration of motor‑starter combinations.