The performances and characteristics of the standard motors can vary depending on the environmental conditions. The data reported in this catalogue are intended for motors operating in environments with temperature ranging from –20°C to +40°C, at altitudes of up to 1000ms above sea level and with humidity value that does not exceed 95%. The performances of the motor must be declassed with the increasing of the temperature over 40°C and the increasing of the altitude. Nicolini & C. can supply, on request, special  treatments for motors to be used in tropical environments or with humidity values higher than  95%.