Product Manual

S8 Continuous operation with periodic changes in load and speed.
Sequential, identical duty cycles of start, run at constant load
and given speed, then run at other constant loads and speeds.
No rest periods.
IEC Design Types
The electrical performance characteristics of IEC Design N motors in
general mirror those of NEMA Design B – the most common type of motor
for industrial applications. By the same token, the characteristics of IEC
Design H are nearly identical to those of NEMA Design C. There is no
specific IEC equivalent to NEMA Design D. (See chart on Page 13 for
characteristics of NEMA design types.)
IEC Mounting Designations
-60-
Three common IEC mounting options are shown in this photo. From left, a B5
flange, B14 face and rigid B3 base. In this case, any of the options can be bolted
to a modularly designed round-body IEC 71 frame motor.