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acb means AIR CIRCUIT BREAKER ,& vcb means VACUUM CIRCUIT BREAKER
4poles
Actually ACB isused for Low Tension side and VCB is used for High Tension Side..Chappa matter
ask my friend on 0402655877 hes a mechanic and can help you
The letters ACB stand for Air Circuit Breaker. These types of circuit breakers are used for high voltage switching. The breakers are usually enclosed in steel switch gear enclosures that are situated in electrical service vaults.