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.
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