To Next Page

To Previous Page

Coolant connection: See table "Cooling data and sound pressure levels"

The units should be connected with hoses to provide mechanical decoupling (refer to the

table "Materials and components of a cooling circuit").

Commissioning

When required, before connecting the motors and converters to the cooling circuit, the pipes

should be 󹪞ushed in order to avoid dirt entering the motors and converters.

After the units have been installed in the plant, the coolant circuit must be commissioned

before the electrical systems.

4.2 Degree of protection

Degree of protection designation

The degree of protection designation in accordance with EN 60034-5 (IEC 60034-5) is described

using the letters "IP" and two digits (e.g. IP64).

IP = International Protection

1st digit = protection against the ingress of foreign bodies

2nd digit = protection against water

When assigning motors to a speci󹪝c degree of protection class, a standardized, brief test

procedure is applied. This can deviate signi󹪝cantly from the actual ambient conditions where

the motor is installed.

Attention must be paid to providing suitable sealing of the motor shaft for the selected

degree of protection for the motor.

Note

Suitability of the motor depending on the ambient conditions

Depending on these ambient conditions - such as the chemical properties of dusts or the cooling

media used at the installation site - it is only conditionally possible to evaluate the suitability of

the motor for the particular environment using the degree of protection (e.g. electrically

conductive dusts or aggressive coolant vapors or liquids).

In these cases, the motor must be additionally protected using the appropriate measures.

Note

Liquids that have collected and/or oil jets

Liquid must be prevented from collecting on the motor shaft as well as jets of oil (or are not

permissible at all) - even for versions with radial shaft sealing ring.

Mechanical properties

4.2Degree of protection

1PH8 SIMOTICS M main motors

Con󹪝guration Manual, 12/2022, A5E51895839A 83

Siemens SIMOTICS M-1PH8 Configuration Manual

Other manuals for Siemens SIMOTICS M-1PH8