SIRIUS 3RR2 current monitoring relays
8.7 Connection
SIRIUS Innovations
702 System Manual, 01/2011, A8E56203870002-03
8.7 Connection
8.7.1 3RR21 Basic analog setting current monitoring relay
Connection of terminals
Depending on their design, the current monitoring relays are supplied with a 24 V AC/DC or
24 to 240 V AC/DC supply via terminals B1/B2.
The current monitoring relays monitor an AC load current which flows via device terminals
1L1/2T1 and 3L2/4T2 depending on whether monitoring has been set to check for overshoot
(I▲) or undershoot (I▼), or whether range monitoring (I▲ and I▼ ≠OFF) has been selected.
Terminal Designation
B1 Supply voltage ∼/+
B2 Supply voltage ∼/-
32 Output relay CO contact NC contact
31 Output relay CO contact root
34 Output relay CO contact NO contact
2T1
4T2
6T3
Main circuit terminals
14/22 Feed-through contactor auxiliary switch (S00)
A2 Feed-through contactor coil terminal (S00)
Reference
More information ... Can be found in the chapter titled ...
About connecting the SIRIUS modular system System overview, under Connection (Page 74)
About connection terminals 3RR214.-.A.30 Basic analog setting current
monitoring relay (Page 687)
About conductor cross-sections and tightening
torques
Connection for main circuit (Page 741)
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