This document is an introduction to the basic specifications and features of the CJC20 series contactors from a certain brand. The contactors in this series have various rated working voltages and rated working currents, suitable for different working conditions. The contactors are available in two types: power-off automatic release and power-off non-release, to meet different requirements. In addition, the contactors also have characteristics such as the type and quantity of auxiliary circuit contacts.
This manual details the technical data and installation guidelines for the CJC20 series AC contactors. It includes basic specifications, main‑circuit parameters, auxiliary‑circuit contact information, physical dimensions, safety areas, and wiring diagrams.
The document also describes the different power‑failure release types (manual and automatic) and provides step‑by‑step installation and adjustment procedures with reference figures. This manual is written in Chinese.