DLCS-2000 series intelligent low-voltage integrated safety protection device (referred to as DLCS) is mainly used for low-voltage motor control systems below 690V, and has multiple protection functions, such as start timeout, stall, underload, electric leakage, undervoltage, overvoltage, frequency, overload, definite time, inverse time limit, unbalance, TE time, process interlocking. Integrated with the three-phase quantity measurement/display of ****, it can be equipped with various starting methods such as the direct starting, two-speed starting, two-way starting, protection starting, star-delta starting, soft start matching starting, converter matching starting for different motors. DLCS has an optional communication interface to facilitate the access to the designated communication network. The user can select its functions or accessories according to its needs. It can be combined with electrical components such as contactors and motor starters to form a motor control and protection unit, which has the functions like remote automatic control, field direct control, panel indication, signal alarm and fieldbus communication. It can be applied to the coal, petrochemical, smelting, electric power, ship, civil use and other fields.