Availability of du/dt filter and common mode filter by drive typeAvailability of common mode filter(CMF)Availability of du/dt filterProduct typeStandardStandardACS880-07Additional requirements for explosion-safe (EX) motorsIf you will use an explosion-safe (EX) motor, follow the rules in the requirements table above.In addition, consult the motor manufacturer for any further requirements.Additional requirements for ABB motors of types other than M2_, M3_, M4_, HX_ andAM_Use the selection criteria given for non-ABB motors.Additional requirements for braking applicationsWhen the motor brakes the machinery, the intermediate circuit DC voltage of the driveincreases, the effect being similar to increasing the motor supply voltage by up to 20 percent.Consider this voltage increase when specifying the motor insulation requirements if themotor will be braking a large part of its operation time.Example: Motor insulation requirement for a 400 V AC line voltage application must beselected as if the drive were supplied with 480 V.Additional requirements for 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).This table shows the requirements for protecting the motor insulation and bearings in drivesystems for ABB random-wound motor series (for example, M3AA, M3AP and M3BP).Requirement forNominal AC supplyvoltage ABB du/dt and common mode filters, insulated N-end motorbearingsMotor insulationsystemPN ≥ 200 kW100 kW ≤ PN <200 kWPN < 100 kWPN ≥ 268 hp140 hp ≤ PN <268 hpPN < 140 hp+ N + CMF+ N-StandardUN ≤ 500 V+ du/dt + N + CMF+ du/dt + N+ du/dtStandard500 V < UN ≤ 600 Vor+ N + CMF+ N-Reinforced+ du/dt + N + CMF+ du/dt + N+ du/dtReinforced600 V < UN ≤ 690 VGuidelines for planning the electrical installation 79
