Performance Features - Siemens SIRIUS 3RT2 Manual

3.2

Performance features

Features
The function modules have the following features:
Function module
Function modules Electronic timing relays
for direct-on-line with semiconductor
start output
Solid-state time-delay
auxiliary switches
Function modules Star-delta (wye-delta)
for star-delta (wye- start
delta) start
SIRIUS 3RA28 function modules for mounting on 3RT2 contactors
Manual, 02/2019, A5E03656507620A/RS-AD/005
Features
ON-delay (1 NO contact)
•
OFF-delay with control signal (1 NO contact)
•
Versions with screw-type and spring-loaded connection systems
•
ON-delay (1 NO contact + 1 NC contact or 1 CO contact)
•
ON-delay with/without control signal (1 NO contact + 1 NC contact or
•
1 CO contact)
Versions with screw-type and spring-loaded connection systems
•
Control exclusively via contactor A1/A2 – no further control circuit
•
wiring required
No control current wiring thanks to plug-in technology and connecting
•
cables
Interchange proof construction
•
Timing function for switching over from star to delta in basic module
•
Electrical interlock without additional wiring
•
Changeover delay time set to a non-adjustable value of ≥ 50 ms
•
Product description
3.2 Performance features
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