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Siemens RAJA+ 3TE7421 Installation, Operation & Maintenance Instructions Manual page 4

Fully automatic star delta starter

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Fig. 7: Wiring Diagram FASD1
Fig. 8: Wiring Diagram FASD2
4
L1, L2, L3: 3φ supply
Q1: Line Contactor
Q2: Star Contactor
Q3: Delta Contactor
K1: Bimetal relay
K2: Star Delta Timer
K3: Line Monitoring relay
VSS: Voltmeter selector switch
RS: Rocker switch
AV: Ammeter Voltmeter
AM: Amber LED
GN: Green LED
S1: ON push button
S0: OFF/Reset push button
TB1: Incoming terminal block
TB2/TB3: outgoing terminal block
TB4: LMR terminal connector
L1, L2, L3: 3φ supply
Q1: Line Contactor
Q2: Star Contactor
Q3: Delta Contactor
K1: Bimetal relay
K2: Star Delta Timer
K3: Line Monitoring relay
VSS: Voltmeter selector switch
RS: Rocker switch
AV: Ammeter Voltmeter
AM: Amber LED
GN: Green LED
S1: ON push button
S0: OFF/Reset push button
TB1: Incoming terminal block
TB2/TB3: outgoing terminal block
TB4: LMR terminal connector

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