Guidelines for planning the electrical installation 61Additional requirements for non-ABB high-output and IP23 motorsThe rated output power of high output motors is higher than what is stated for the particularframe size in EN 50347:2001. The table below shows the requirements for random-woundand form-wound non-ABB motors with nominal power smaller than 350 kW. For biggermotors, consult the motor manufacturer.Nominal ACsupply voltageRequirement forMotor insulation system ABB du/dt filter, insulated N-end bearing andABB common mode filter100 kW < PN < 350 kW orIEC 315 < frame size < IEC 400134 hp < PN < 469 hp orNEMA 500 < frame size < NEMA 580UN < 420 V Standard: ÛLL = 1300 V + N + CMF 1)420 V < UN < 500 V Standard: ÛLL = 1300 V + N + du/dt + CMForReinforced: ÛLL = 1600 V,0.2 microsecond rise time+ N + CMF 1)500 V < UN < 600 V Reinforced: ÛLL = 1600 V + du/dt + N + CMForReinforced: ÛLL = 1800 V + N + CMF 1)600 V < UN < 690 V Reinforced: ÛLL = 1800 V + N + du/dt + CMFReinforced: ÛLL = 2000 V,0.3 microsecond rise time***N + CMF 1)*** If the intermediate DC circuit voltage of the drive is increased from the nominal level by resistorbraking, check with the motor manufacturer if additional output filters are needed in the applieddrive operation range.1) also du/dt filter is required at the output of the basic drive modules if the motor cable length isless than 20 meters before connecting the motor cables together
