Smart Reclosed Breaker

MT84SR

MT84SR series self-restoring circuit breaker overvoltage and under voltage protection miniature circuit breakers can distinguish between manual switch-off and over-current tripping, and provide different solutions for these two different conditions; over-voltage protection and under-voltage protection can be provided when the grid voltage is too low.

Specification Product pictures Data download

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