DOCA0270EN-02

For utilisation category AC-3

Selection according to required electrical durability, in category AC-3 (Ue ≤ 440 V)

  • Control of three-phase asynchronous squirrel-cage motors with breaking while running.

  • The current broken (Ic) in category AC-3 is equal to the rated operational current (Ie) of the motor.

Operational power in kW (hp)—50 Hz.

Example:

  • Asynchronous motor with

    • P = 5.5 kW (7.4 hp) − Ue = 400 V − Ie = 11 A − Ic = Ie = 11 A, or

    • P = 5.5 kW (7.4 hp) − Ue = 415 V − Ie = 11 A − Ic = Ie = 11 A

  • 5 million operating cycles required.

  • The above selection curves show the starter rating needed: TPRS•025.

Selection according to required electrical durability, in category AC-3 (Ue = 660/690 V)

  • Control of three-phase asynchronous squirrel-cage motors with breaking while running.

  • The current broken (Ic) in category AC-3 is equal to the rated operational current (Ie) of the motor.

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