Distribution Boards, MCCB and Genset Backup
July 14, 2026 · 2 min read
Before the rectifier sees power, a board, a breaker and sometimes a generator have to present a safe feed. SARBS supplies that side of the site too.
People photograph the antennas and specify the rectifier, then discover the AC feed is a loose cable through a window. SARBS lists a main distribution board, an MCCB and a genset because the DC plant is only as calm as the supply in front of it.
The board and the breaker
The main distribution board is where grid, generator and sometimes a renewable inverter meet, and where each outgoing way is labelled. The MCCB is the breaker that can interrupt a real fault, not a lighting switch doing a dangerous job. A tidy board is also what makes tenant metering and later maintenance possible. Technicians should not have to pull unidentified conductors in the dark.
The generator’s actual job
A genset is the long-outage tool. The battery covers seconds and minutes, and on a well sized hybrid site it covers the night. The generator covers the day the grid does not return. It should start on a low-battery or AC-fail signal from the rectifier, run at a sensible load, and stop when the bus is healthy. An oversized generator that short-cycles wastes fuel and wears out. Solar and a larger LiFePO4 string, where they fit, exist to cut those hours.
SARBS can supply the board, the breaker and the generator with the hybrid DC plant. They are all on the product page. Include the incoming breaker rating and the generator’s start signal in the same enquiry.
Figures and product notes on this page are taken from the public SARBS website, the SARBS LinkedIn page and the SARBS YouTube channel.
Categories: Distribution and Backup, Protection & Distribution