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MT53
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.
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
Wiring
1P+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 protection
B type (3ln
Breaker short circuit（Icn）
10KA
Insulation strength
2500VAC 1minute
Voltage withstand（Uimp）
4KV
Under-voltage protection value/recover value
170±5V/190±5V
Under-voltage trip time delay
1s
Over-voltage protection value/recover value
270±5V/250±5V
Over-voltage trip time delay
0.5s
Under-voltage recover time-delay
30s
Mechanical characteristics
Electrical characteristics
8000times
Mechanical life
10000times
Enviroment temperature
-35℃~+70℃
Storage enviroment temperature
-40℃~+85℃
Temperature & Temperature
Humidity of 95％ when Temperature 55℃
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5.Technical Brochure
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