Emax Low voltage air circuit-breakers - ABB Download Center

Automatic circuit-breakers for applicationsup to 1150V AC1SDC200061F0001SACE Emax circuit-breakers can be supplied in a special version for rated service voltages upto 1150 V in AC.Circuit-breakers in this version are identified by the letters of the standard range (rated servicevoltage up to 690 V AC) plus “/E”, and are derived from the corresponding standard SACE Emaxcircuit-breakers. They offer the same versions and accessories as the latter. The SACE Emaxrange of circuit-breakers for applications up to 1150V in AC can be either fixed and withdrawable,in both three-pole and four-pole versions. SACE Emax/E circuit-breakers are especiallysuitable for installation in mines, oil and chemical plants, and for traction. This range of Emaxwas tested at a voltage of 1250VAC.The table below shows the electrical specifications of the range.2E2B/E E2N/E E3H/E E4H/E** E6H/E**Max rated uninterruptedcurrent (at 40 °C) [A] 1600 2000 1250 1600 2000 1250 1600 2000 2500 3200 3200 4000 4000 5000 6300Rated service voltage Ue [V~] 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150 1150Rated insulation voltage Ui [V~] 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250Rated ultimate breaking capacityunder short-circuit Icu1000 V [kA] 20 20 30 30 30 50 50 50 50 50 65 65 65 65 651150 V [kA] 20 20 30 30 30 30 30 30 30 30 65 65 65 65 65Rated service breaking capacityunder short-circuit Ics1000 V [kA] 20 20 30 30 30 50 50 50 50 50 65 65 65 65 651150 V [kA] 20 20 30 30 30 30 30 30 30 30 65 65 65 65 65Rated short-time withstandcurrent Icw (1s) [kA] 20 20 30 30 30 50 (*) 50 (*) 50 (*) 50 (*) 50 (*) 65 65 65 65 65Rated making capacity undershort-circuit (peak value) Icm1000 V [kA] 40 40 63 63 63 105 105 105 105 105 143 143 143 143 1431150 V [kA] 40 40 63 63 63 63 63 63 63 63 143 143 143 143 143(*) 30 kA @ 1150 V.(**) E4H/E and E6H/E are not available in the full-size version.2/6ABB SACE