OPERATION AND MAINTENANCE MANUAL
ID MOTORS
PAGE: 16
CODE: CTT52 EDITION: 03 RELEASE: APRIL 2019
Subject to technical changes without prior notice
IC Cooling Method
3.3.4
The type of cooling used in electrical machines is regulated by the IEC/EN 60034-6 standard. In order to identify the type of
cooling used in each motor, it is also given a code similar to the IP protection rating. There are two types of code: full indication
(e.g. IC9A7W7) and simplified indication (e.g. IC97W). Both begin with the initials IC (International Cooling).
The table below shows the most common cooling methods for ID motors:
SIMPLIFIED
INDICATION
FULL
INDICATION
EN60034-6
DESCRIPTION
IC00
IC0A0
Free circulation, using the surrounding medium, by means of free
convection
IC01
IC0A1
Free circulation, using the surrounding medium, by own circulation
IC06
IC0A6
Free circulation, using the surrounding medium, by an independent part
fitted on the machine
IC16
IC1A6
Circulation via inlet pipe or conduit, using remote fluid, by an
independent part fitted on the machine
IC17
IC1A7
Circulation via inlet pipe or conduit, using remote fluid, by an
independent, separate part or cooling system pressure
IC37
IC3A7
Circulation via inlet and outlet pipe or conduit, using remote fluid, by an
independent, separate part or cooling system pressure
IC410
IC4A1A0
Cooling of the housing surface, using the surrounding medium, by
means of free convection
IC411
IC4A1A1
Cooling of the housing surface, using the surrounding medium, by
means of own circulation
IC416
IC4A1A6
Cooling of the housing surface, using the surrounding medium, by
means of an independent part fitted on the machine
IC97W
IC9A7W7
Cooling using an independent heat exchanger by means of liquid
coolant or remote fluid
Table 7:
Cooling types
