User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Tripping and Limitation CurvesCompact NSX100 to 250 - Motor-Feeder ProtectionTripping CurvesMA magnetic trip unitsMA2.5... MA100MA150 and MA220DB11854610 0005 000DB11571610 0005 0002 0001 0005002 0001 000500Thermal withstand20010050Thermal withstand20010050MA220MA150t(s)2010521.5Im = 6 ... 14 x InIm = 9 ... 14 x In(MA100 4P)t(s)2010521.5Im = 9 ... 14 x In.2.1.05.2.1.05.02.01.005t < 10 ms.02.01.005t < 10 ms.002.001.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300I / Ir.002.001.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300I / IrRefl ex tripping.Micrologic 2.2 M electronic trip unitsMicrologic 2.2 M - 25 AMicrologic 2.2 M - 50... 220 ADB11477510 0005 0002 0001 0005002001005025 A : Ir = 12 ...25 Aclass 20class 10class 5DB11477610 0005 0002 0001 0005002001005050 A : Ir = 25 ...50 A100 A : Ir = 50 ...100 A150 A : Ir = 70 ...150 A220 A : Ir = 100 ...220 Aclass 20class 10class 5t(s)2010521.5Isd = 5 ...13 x Irt(s)2010521.5Isd = 5 ...13 x Ir.2.1.05.2.1.05.02.01.005t < 10 ms.02.01.005t < 10 ms.002.001Ii = 17 x In.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300I / Ir.002.001Ii = 15 x In.5 .7 1 2 3 4 5 7 10 20 30 50 70 100 200 300I / IrRefl ex tripping.162 LV434104 09/2009

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