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System pro M compact® - Piti Group

System pro M compact® - Piti Group

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<strong>System</strong><strong>pro</strong> M compact ®Technical detailsPerformances at different ambienttemperatures, altitudes and frequenciesMCBs2. Multiply the rated current (equivalent) referring to the new temperature by another factor0.9 only for loads that last for more than an hour.3. Multiply the rated current (equivalent) referring to the new temperature by another factoronly in case of presence of several devices installed alongside each other; see table.Influence of adjacent devices1.00.9Fm Factor0.80.70.61 2 3 4 5 6 7 8 9Number of devicesOEPM0108Influence of adjacent devicesCorrection factor FmNo. of adjacent devices Fm1 12 0.953 0.94 0.865 0.826 0.7957 0.788 0.779 0.76>9 0.76Example: S 202 C 16 with T=35 °CType of use Values to use Formula Calculation ResultLoad less than an hour In (amb. t°) -see tables- In=15.43 ALoad more than an hour In (amb. t°) -see tables-, 0.9 In (amb. t°)x0.9 15.43x0.9 In=13.9 ALoad over an hour with 8 adj. devices In (amb. t°) -see tables-, 0.9, Fm (0.77) In (amb. t°)x0.9x0.77 15.43x0.9x0.77 In=10.7 A10Selection tables ............................... pag. 2/2ABB10/71

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