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Smart Reclosed RCBO


MT61SR is an integrated smart recloser RCBO with auto-recloser, residual current protection, overload protection, and over-voltage, and under-voltage protection. The device is reclosed after untimely tripping but only after an electrical circuit check.
• Voltage monitoring
• Remote control by RS485
• Dry Contact
• Data setting: Reclosing times, over/under voltage
• Current is up to 125A


Electrical Features

Item Code MT61SR-Sinple Phase MT61SR-Three Phase
Approvals CE, CCC
Standards IEC50557, IEC61009
Rated Voltage Ue (Vac) 230 400
Rated Current In (A) 16,20,25,32,40,50,63,80,100,125
Rated Frequency (Hz) 50/60
Mini. operating Voltage (Vac) 85% Ue
Max. operating Voltage (Vac) 110% Ue
Rated Insulation Voltage Ui (Vac) 500
Rated Breaking Capacity (A) 6000
Dielectric strength test voltage between pole and earth (V/Min) 2500
Pollution Degree 2
Rated residual current (In) (mA) 30,100,300
Type of associated residual current circuit breaker A
Thermo-magnetic Release Characteristic C 5-10In
D 10-20In
Trips Time (s) <0.2
Over / Under Voltage Protection (Vac) 270/170+-5

Mechnical Features

Electrical Life (times) 5000
Mechanical Life (times) 10000
Protection Degree IP20
Width in Din modules 72 108
Reference Temperature for setting of thermal element (℃) 30
Storage Temperature (℃) -25---+55
Ambient temperature (with daily average<=35.C) (℃) -40---+70


Short Circuit Residual Current
Auto Reclose Phase loss
Over / Under Voltage Phase Unbalance
Characteristic Set Up
Over / Under Voltage Action Time
Over / Under Voltage Value
Reclose Trips & Time
Time Setup / Language
Measurement & Monitor
Earth leakage
Communiction Port RS485
Others Event reord and checkup
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