Design; Cooling - Siemens 1PH728 Series Operating Instructions Manual

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2.5

Design

2.5.1

Cooling

Description
The three-phase motors of the 1PH7 series are externally ventilated, low-voltage
induction motors with a squirrel-cage rotor and a separately driven fan unit
mounted as standard. They are of an enclosed design, with an internal cooling
circuit (cooling method IEC 60 034-6; DIN / EN IEC 60 034-6).
The separately driven fan unit and the terminal box can be mounted in a different
position depending on the order.
SIEMENS AG - Operating Instructions
Three-phase induction motor 1PH728.
Code, sensor type
Ident. No., serial number
Motor weight [kg]
Temperature class
Rated speed [rpm]
Rated frequency [Hz]
Power factor [cosϕ]
Maximum speed [rpm]
Technical Data
Description
2-3