3TY7480-0A 데이터 시트보기 (PDF) - Siemens AG

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3TY7480-0A

Power Contactors 3TF

Siemens AG 

Typical Circuit Diagrams

Direct On Line starter

a) Main circuit

b) Control circuit for

momentary-contact control

Forward / Reverse starter (Electrical Interlocking)

S0 = ‘OFF’ Push button

S1 = ‘ON’ Push button

S = Maintained command

switch

K1 = Main contactor

F1 = Main circuit fuse

F2 = Overload relay

F3 = Control circuit fuse

c) Control circuit for

maintained-contact control

Main circuit

S0 : 'OFF' Push button

S1 : 'ON Clockwise' Push button

S2 : 'ON Anti-clockwise' Push button

S : Selector Switch 'Clockwise - OFF - Anti-clockwise'

Star Delta starter

Push button control

(momentary command)

K1 : Clockwise contactor

K2 : Anti-clockwise contactor

Selector switch control

(command needs to be maintained)

F1 : Main circuit fuses

F2 : Overload relay

F3 : Control circuit fuse

Main circuit

Control circuit for push button control

(momentary command)

S0 = ‘OFF’ Push button

S1 = ‘ON’ Push button

K1 = Line contactor

K2 = Star contactor

K3 = Delta contactor

K4 = Star delta timer (7PU60 20)

F2 = Overload relay

F1 = Backup fuse

F3 = Control circuit fuse

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