Product description
3.1 Device versions
SIRIUS 3RA28 function modules for mounting on 3RT2 contactors
Manual, 02/2019, A5E03656507620A/RS-AD/005
17
3.1
Device versions
Device versions
●
Function modules for direct-on-line start
–
Solid-state timing relays with semiconductor output
–
Solid-state time-delay auxiliary switches
●
Function modules for star-delta (wye-delta) start
Characteristics
The table below provides an overview of the versions of 3RA28 function modules for
mounting on 3RT2 contactors and 3RH2 contactor relays
1)
.
1)
The 3RA28 function modules must not be mounted on 3RH2 coupling relays.
Characteristic Versions
Function modules for direct-on-line start
Function module for
star-delta (wye-delta) start
Electronic timing relay with semi-
conductor output
Solid-state time-delay auxiliary
switches
Function
ON-delay and OFF-delay with con-
trol signal
ON and OFF-delay
with/without control signal
Star-delta (wye-delta) function
Article num-
bers
3RA2811-.CW10/
3RA2812-.DW10
3RA2831-.D.10/
3RA2832-.D.10
3RA2813-..W10/
3RA2814-..W10/
3RA2815-..W10
3RA2816-0EW20 comprising:
1 basic module
2 coupling modules
Size
For size S00, S0
contactors.
For size S2 and
S3 contactors.
One module for size S00, S0, S2 and S3 contactors.
Width
45 mm
135 mm (3 x 45 mm)
Connection
system
Screw-type, spring-loaded
Without terminals (can be used for
contactor screw-type and spring-
loaded connection systems)
