MCCB, Dorman alike mccb
AA Dorman MCCB is available in two frame sizes from 25 to 800amps, loadline series of moulded case circuit breakers provide overload and short-circuit protection for the full range of transformer sizes encountered in normal service. The overload and instantaneous tripping elements, adjustable over all wide band,make these MCCBS ideal for many distribution applications. Specifications Type AA-100 AA-250 AA-400 AA-630 AA-800 Poles number 1.3 3 3 3 3 Rated current(A) 25.32.40.50.60.80.100 125.160.200.250 300.400 500.630 700.800 Rated insulation voltage Ui(V) AC500 AC660 AC660 AC660 AC660 Ulitllsation category A A A A A Rated ultimate short-circuit breaking capacity Icu(KA) at415V 25 65 65 65 65 Rated short-circuit service breaking capacity Ics(%Icu) at415V 75% 75% 75% 75% 75% Tripping Elements Overload front adjustable 0.7-1.0times rated current Instantaneous:non-adjustable AA25~63=400A AA80~250=10In Switch Disconnector Current rating In(A):250 3pold
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