MT53

Recloser

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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