Auto Recloser
MT53
MT53 auto reclosers are designed to automatically restart the associated protective device after it has an untimely trip. It is a 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 in conjunction with MCB, RCCB, and RCBO from Chint, Nader, Schneider, etc.

Features
Remote reclosing of MCB MM50H, RCBO MR50-32, RCBO50-40, RCCB ML50H
Remote control of MCB, RCBO, and RCCB through PLC or platform with RS485 connection
Remote control of MCB, RCBO, and RCCB through dry contact connection
Reclose itself if there is no faulty, and it may output the signal to remote terminals if it is faulty
Padlocking to secure the circuit and assure the safety of people when maintenance
Together with MCB, RCBO, and RCCB, it may offer overload, short circuit, and earth leakage protection
Local control via the handle
Compact module with 18mm only
With remote auxiliary contact NO & NC
Electrical Features |
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Item Code | MT53NA/MT53RA | |
Rated Voltage Ue (Vac) | 230 | |
Rated Frequency (Hz) | 50/60 | |
Power Consumption (VA) | <1.5 | |
Standby Power | - | |
Insulation Voltage Ui (Vac) | 4000V/min | |
Trip Time (s) | <=1.5 | |
Trips (Times) | 3 | |
Time Delay (s) | 10, 60, 300 | |
Reclosing Time (s) | <=3 | |
Reset System (ISPDT) | Rated Current 5A (250VAC) resistant load | |
Pollution Degree | 2 | |
Mechnical Features |
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Width (mm) | 18 | |
Electrical Life (times) | 10000 | |
Mechanical Life (times) | 20000 | |
Protection Degree | IP20 | |
Reference Temperature for Setting of Thermal Elecment (℃) | 30 | |
Ambient Temperature (℃) | -25---+55 | |
Storage Temperature (℃) | -40---+70 | |
Installation |
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Humidity (℃) | 95% | |
Terminal Connection Type | Cable | |
Terminal Size Top/Bottom for Cable (mm2) | 1x25.2x25 | |
Tightening Torque (N*m) | 4 | |
Mounting | On Din rail En60715(35mm) by means of fast clip device | |
Connection | From top to bottom | |
Communication Port |
Remote auxiliary contacts NO & NC | |
Compatiable Device |
MCB,RCCB,RCBO from Matismart, Chint, Nader and Schneider. Customized. |
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