Configuration
6.2 Configuration
SIRIUS 3RA28 function modules for mounting on 3RT2 contactors
38
Manual, 02/2019, A5E03656507620A/RS-AD/005
3RA2816-0EW20
The 3RA2816 function module for star-delta (wye-delta) start has the following features:
●
The voltage is supplied through the plug-in contacts directly via the contactor's coil
terminals, parallel to A1/A2.
●
The start time in star operation is activated by switching on the contactor.
●
The changeover delay is ≥
50 ms (this is a non-adjustable value).
●
A varistor is integrated in the basic module to attenuate contactor coil switching
overvoltages.