The range of OptiStart K-F block electromagnetic contactors with DC control coil and low power consumption (-Z) includes models for currents from 9 to 38 A AC-3 (up to 56 A AC-1), available in both three-pole and four-pole versions. For all lines and versions in the range, a wide list of accessories is available, allowing for the required configuration and precise compliance with technical specifications. The new OptiStart K contactor series represents the most modern solutions for motor control. The range includes both classic solutions with AC, DC, or AC/DC control coils, and modern OptiStart K-AF contactors with an electronic control coil power supply, which possess numerous advantages compared to traditional solutions and fully meet all modern market requirements.