SIRIUS 3RU2/3RB3 overload relays
5.7 Connection
SIRIUS Innovations
514 System Manual, 01/2011, A8E56203870002-03
5.7.1 Connection of 3RU21 overload relay
Control circuit
An additional power supply is not required for the operation of 3RU21 thermal overload
relays.
Connection of terminals
Terminal Designation
2T1
4T2
6T3
Main circuit terminals
95
96
NC contact (NC 95-96)
97
98
NO contact (NO 97-98)
14/22 Feed-through contactor auxiliary switch (S00 only)
A2 Feed-through contactor coil terminal (S00 only)
Reference
More information ... Can be found in the chapter titled ...
About connecting the SIRIUS modular system System overview, under Connection (Page 74)
About conductor cross-sections and tightening
torques
Conductor cross-sections main circuit (Page 541)
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