Address:No. 38, Lufeng Road, Lugu High-Tech Development Zone, Changsha City, Hunan Province, China Zip:410205
QB4 series low voltage soft starter is a specialized device for motor starting, designed for controlling the soft starting and soft stopping of three phases squirrel cage asynchronous induction motors. Characteristics: > Adopt PIC mono-chip computer all- digital intelligent control. > Reduce the impact on the power network imposed by the current, decrease equipments' shaking, noise and starting mechanical stress, prolong the motor and its relative equipments operation life. > Various starting mode can be chosen freely such as slope start, constant current start, constant voltage start and jumping start. >Hold many protective functions for motor, such as phase loss of three phase power supply protection, short circuit protection of controllable silicon, over-heating protection, starting over current protection, starting time-out protection. >Phase sequence is not required for three phases power supply.
Technical parameters: Communication agreement: RS 485-Modbus agreement Running temperature:-5~+40°C Storing temperature: -25~+55°C Relative humidity: 20~90%, no dew Enclosure grade: IP20 Working mode: Short time working Products technical standard: GB 14048.6-1998,Q/OKRR001-1999
