Project Description

FMB7 DC Mini Circuit Breaker


The DC combiner box is used for connecting the photovoltaic array and the inverter, providing lightning and over-current protection, and monitoring the single string current, voltage, temperature of the photovoltaic array, and the state of the lightning protection device. The photovoltaic DC combiner box added the function of the circuit breaker trip when over- temperature or high pv string current, which can effectively prevent the damage caused by the external short circuit.

DC power input DC300V~DC1500V
PV string current input 4/8/12/16/20/24 branches, 0~25A, 0.5%
Communicate interface RS485, 2500V Optoelectronic Isolation
Digital quantity input 2 ways, 2500V isolation
LED display 8 bits, Accurate to 0.1, Error≤5%
Operating Environment
Power ≤3W
Operating temperature -30℃~+75℃
Storage temperature -40℃~+85℃
Relative humidity 5℃~95℃ (no condensation)
Shape size
  Length * width * height Control unit:107mm*87mm*58mm
Acquisition unit:96mm*42mm*39mm
Installation mode Acquisition unit: Din rail or Back Panel Attached Hanging
Control unit: DIN rail

Front Page  Title Document Type  Download
DC combiner boxuser manual Combiner Box User Manual




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