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It is easy to selection the over-current protection devices for the motor starter circuit.
© 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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Direct-on-line starting
200-240V

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  1. The method of motor starting is direct-on-line. Select MCCBs on the baseis of 600% of motor full load current for 10 second.
  2. The MCCBs are for line protection and not motor protection use.
  3. The motor full load current are based on IEC standard(230V 50Hz, 400V 50Hz).
  4. The heater ranges for thermal overload relays are selected according to the motor full load current.
  5. The connection wire size was selected from IEC 60947-1 Table 9A based on the total load current of the electric motor.
  6. Operating condition: AC-3, IEC60947-4-1.
  7. Short-circuit protective coordination: IEC60947-4-1 Type 1.
© 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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Direct-on-line starting
380-480V

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  1. The method of motor starting is direct-on-line. Select MCCBs on the baseis of 600% of motor full load current for 10 second.
  2. The MCCBs are for line protection and not motor protection use.
  3. The motor full load current are based on IEC standard(230V 50Hz, 400V 50Hz).
  4. The heater ranges for thermal overload relays are selected according to the motor full load current.
  5. The connection wire size was selected from IEC 60947-1 Table 9A based on the total load current of the electric motor.
  6. Operating condition: AC-3, IEC60947-4-1.
  7. Short-circuit protective coordination: IEC60947-4-1 Type 1.
© 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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R MCCB S T MS MC MC ON OFF OLR OLR U V W MC Direct-on-line starting {Voltage} {MCCB1 } {MCCB2 } {MS1 } {MS2 } M © 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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Star-delta starting
200-240V

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  1. The connection diagram is for line current detection with three electromagnetic conductors using open transitions.
  2. Inrush current of 17In(motor full load current) flow when changing over from star to delta connection. MCCBs are selected taking into consideration the instantaneous trip current characteristics based on the inrush current given abobe.
  3. The motor full load current are based on IEC standard.
  4. The heater ranges for thermal overload relays are selected according to the motor full load current.
  5. The connection wire size is selected under the following conditions.
    Power supply side (OLR): Metal tube wiring of PVC (heat resistant temperature 70 ℃) (3 or less, ambient temperature 40 ℃).
    Load side: Wire size capable of safely flowing 60% of the motor full load current.
  6. Short-circuit protective coordination: IEC60947-4-1 Type 1.
  7. The connection diagram uses MS4SY as the timer(TR).
  8. Electrical durability: 100,000 operations.
© 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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Star-delta starting
380-480V

reset



  1. The connection diagram is for line current detection with three electromagnetic conductors using open transitions.
  2. Inrush current of 17In(motor full load current) flow when changing over from star to delta connection. MCCBs are selected taking into consideration the instantaneous trip current characteristics based on the inrush current given abobe.
  3. The motor full load current are based on IEC standard.
  4. The heater ranges for thermal overload relays are selected according to the motor full load current.
  5. The connection wire size is selected under the following conditions.
    Power supply side (OLR): Metal tube wiring of PVC (heat resistant temperature 70 ℃) (3 or less, ambient temperature 40 ℃).
    Load side: Wire size capable of safely flowing 60% of the motor full load current.
  6. Short-circuit protective coordination: IEC60947-4-1 Type 1.
  7. The connection diagram uses MS4SY as the timer(TR).
  8. Electrical durability: 100,000 operations.
© 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.
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R MCCB S T OLR TLR ON OFF TLR TLR OLR MC S MC M MC MC S U X V Y W Z MC M MC MC S (In the case of no delay relay) [Delta short-circuit] [Star short-circuit] MC S MC M MC S MC TLR {MCCB1 } {OLR1 } {MCm1 } {MCs1 } {MCd1 } {MCCB2 } {OLR2 } {MCm2 } {MCs2 } {MCd2 } M Star-delta starting {Voltage} © 2018, Fuji Electric FA Components & Systems Co.,Ltd. All rights reserved.