Reclosed MCB/RCCB

MT53 automatic recloser are designed to automatically restart the associated protective device after it has untimely trip. It is compact type with 18mm。 The time sequence and reclosing program are fixed in the device. Dry contact , RS485, DC24V, 48V,60V are for options. MT53 can be conjunction with MCB,RCCB,RCBO from Chint, Nader and Schneider, ect. Spesification : Detailed function Time-delay auto reclose when power on Auto Reclose Autoreset over/under voltage protection Button reclose function Breaker status auxiliary contact Breaker fault auxiliary contact Reset time adjuatable Reset trips adjustable On/off, fault indication Auto, Manu, Lock change Electric characteristics Wiring1P+N/2P single phase 50Hz；3P+N/4P three phase Rated voltage(Un)1P+N/2P 230V AC/50Hz 3P+N/4P 400V AC/50Hz Overload and short circuit protectionB type (3ln Breaker short circuit（Icn）10KA Insulation strength2500VAC 1minute Voltage withstand（Uimp）4KV Under-voltage protection value/recover value170±5V/190±5V Under-voltage trip time delay1s Over-voltage protection value/recover value270±5V/250±5V Over-voltage trip time delay0.5s Under-voltage recover time-delay30s Mechanical characteristics Electrical characteristics8000times Mechanical life10000times Enviroment temperature-35℃~+70℃ Storage enviroment temperature-40℃~+85℃ Temperature amp; Temperature Humidity of 95％ when Temperature 55℃