LS ELECTRIC Metasol Molded Case Circuit Breaker MCCB Standard ABN402c 300A Bore Size_14^180mm max 60 ℃ Lubrication Non lube Size:16.0*350*500MM (D1207160) max 60 ℃ Lubrication Non lube Piston speed min 50 mm s Piston speed max 1000 mm s Rod diameter 20 mm Weight 4 a feat that is attributed not only to the strong distribution that was implied [Ue] rated operational voltage (AC 50 60 Hz) 690 V AC [Ue] rated operational voltage (DC) 500 V DC [Uimp] rated impulse withstand voltage 8 kV [Ui] rated insulation voltage 1000 V Mechanical durability 4000 cycles Electrical durability (AC) 1000 cycles Electrical durability (DC) Utilisation category Category A Suitability for isolation Yes Reference standard IEC 60947 2 [Icu] rated Ultimate short circuit breaking capacity 50 kA at 220 250 V AC 50 60 Hz Dimensions