Motive DELPHI series, Technical Manual

Page: 10 / 74

Technical Manual delphi series motors rev.14 page 10 of 74
Size 160-400
PTC position
Ti= activating temperature
PTC cable gland
PT100 device
this is a device that continuously, increasingly adjusts its resistance
according to the temperature. It is useful for constant measuring of
the
winding temperatures using electronic
In compliance with IEC34-1, all motors can be exposed to overload
conditions of 1,5 times the rated current for 2 min and 1,6 times the
rated torque for 15 sec (at rated V and Hz)
According to IEC34-1 norm, all motors withstand a temporary overload of 1.5 times the rated
current for 2 minutes, and 1.6 times the rated torque for 15 seconds (at rated V and Hz)
Warning for atex motors:
When connected to inverter, or in case that the motor is not ventilated, motors must be
provided of a temperature control by means of sensors (PTO not allowed in this case). The
thermal protection intervention must assure the power supply disconnection.
He motor power supply system must then not be able return connected automatically.