Low Voltage Equipment Division Overview (pdf ... - Schneider Electric

MC-SetAir-insulated metal-clad switchgearFeatures• Panels are all type tested• Provides an easy to understand user interface• Low maintenance system• All enclosure dimensions are standarised• Access and operation performed at the front of theunit• Interlocked operation• Anti-reflex handle• Internal arc withstandTechnical dataThe values below are given for normal operating conditions as defined in IEC 60298 and 60694Rated voltage (kV)7.2 12 15.5 24Rated insulation levelPower frequency withstand voltage 50Hz 1mm (rms. kV) 20 28 38 50Lightning impulse withstand voltage 1.2/50 µs (kV peak) 60 75 95 125Nominal current and maximum short term withstand currentFunctional unit with circuit breakerShort time withstand current Ith Max. (kA/3s) 31.5 31.5 31.5 1640 40 31.5 25(kA/1s) 50 50 31.5 31.5Rated current In Max. JdB (A) 3150 3150 3150 2500Rated current In CB. (A) 630 630 630 6301250 1250 1250 12502500 2500 2500 20003150 3150 3150 2500Functional unit with fuse-contactorShort time withstand current Ith Max. (kA) 50 50Rated current In Max. (A) 250 200Functional unit with switch-fuse (Cellule DI)Short time withstand current Ith Max. (kA) 50 50 31.5 31.5Rated current In Max.