Thursday, August 27, 2009

Solar Knowledge: What is a Main DC Disconnect?

Main DC DisconnectMain DC Disconnect
AKA: battery/inverter disconnect

In battery-based systems, a disconnect between the batteries and inverter is required. This disconnect is typically a large, DC-rated breaker mounted in a sheetmetal enclosure. This breaker allows the inverter to be quickly disconnected from the batteries for service, and protects the inverter-to-battery wiring against electrical fires.

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