NC100H miniature circuit breakers are used to provide adequate overload protection and can withstand high inrush due to motor starting or other transients without nuisance tripping, bimetals prevent circuit breakers from reclosing before a cool-down time for loads, high speed magnetic trip device is used to provide short circuit protection.
■ Shunt trip of MX;
■ Undervoltage release of MN;
■ Auxiliary swtich of OF;
■ Alarm switch of SD;
■ B characteristic: 3.2-4.8 x ampere ratings;
■ C characteristic: 7-10 x ampere ratings;
■ D characteristicL 10-14 x ampere ratings;