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Smart Reclosed Breaker

MT84SR

MT84SR series self-restoring over-voltage and under-voltage protection miniature circuit breakers can distinguish between manual switch-off and over-current tripping, and provide different solutions for this two different condition; over-voltage protection and under-voltage protection can be provided when the grid voltage is too low, at the same time, it can protect the line from overload and shor

 

Technical Data

Poles 1P, 2P, 3P, 4P
Rated Voltage Single phase 230V~ /Three phase 400V~
Frequency 50/60Hz
Mechanical Life ≥10000 trips
Action Time Open≤0.2s Close≤0.3s (Exclude time delay)
Time delay of reset current fault 1st: 5s; 2nd: 20s; 3rd: 60s; 4th: lock
Protection Grade IP20
Work Temperature -25℃~+55℃
Relative Humidity ≤95%
Storage Temperature -40℃~+70℃
Installation 35mm DIN Rail Mounting
Direction of install Vertical, horizontal, and surface mounting

Operation Mode Review

Mode 1 Green: Dry contacts control + Rs485 + O/U voltage
protection(Note: mode 1 as factory default)
Mode 2 Red/Green flash: Maintenance mode
Mode 3 Red: Dry contacts control + Rs485 + O/U voltage
protection + current fault auto reclose
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