SDB-DC small DC circuit breaker
Rated working voltage: DC250V (1P), DC500V (2P), DC750V (3P), DC1000V (4P)
Rated insulation voltage: 1000V
Rated frame current: 63A
Rated current: 1-63A
Rated ultimate short-circuit breaking capacity: 6kA/10kA
SDB-DC63 series of small DC circuit breakers are used in lines with DC voltage up to 1000V and rated current up to 63A. They are used for overload and short-circuit protection of DC distribution systems and electrical equipment. They can also be used in solar photovoltaic power generation systems and can be quickly disconnected. The fault current of the DC power distribution system protects the photovoltaic module, an important component in the solar power system, from the DC side reverse current and the AC side feedback current caused by the inverter failure, and protects the reliable operation of the solar photovoltaic power generation system; At the same time, it can be used for infrequent operation and conversion of the line. It is widely used in DC system applications such as communications and photovoltaic systems.
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