Wiring of control circuit for controlling a line contactor
The example shows the 3RW55 soft starter with a Standard circuit.
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F1 Fuse
S1 Switch: Motor On / O
S2 Pushbutton: Reset
Q1 Motor starter protector
Q11 3RW55 soft starter
Q21 Line contactor
P1 Indicator light
M1 Motor
PE Protective conductor
A.2.4 Connecting the temperature sensor
Requirements
• 3RW55 or 3RW55 Failsafe soft starter
• Motor with temperature switch (e.g. Thermoclick) or thermistor (e.g. PTC type A)
• Parameterization required
Example circuits
A.2 Control circuit connection
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006 303
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