User Manual

System overview
3.3 Connection methods
3UG4 / 3RR2 monitoring relays
20 Manual, 02/2013, NEB927043002000/RS-AA/002
Connection cross-sections of the permanently connected terminal blocks with screw-type connections
The following table lists the permissible conductor cross-section for the main conductor
terminals of the 3RR2 current monitoring relays with analog and digital setting (size S00 and
S0) with screw-type connection.
Table 3- 2 Permanently connected terminal block with screw-type connection - Main conductor terminals of the 3RR2
current monitoring relays
Permanently connected terminal
Size S00 Size S0
Tool Pozidriv size PZ 2, Ø 5 to 6 mm Pozidriv size PZ 2, Ø 5 to 6 mm
Tightening torque 0.8 to 1.2 Nm 2 - 2.5 Nm
2 x (0.5 to 1.5) mm² 2 x (1 to 2.5) mm²
2 x (0.75 to 2.5) mm²
Solid

max. 2 x (1 ... 4) mm²
2 x (2.5 to 10) mm²
Finely stranded
without end sleeve

--- ---
2 x (0.5 to 1.5) mm² 2 x (1 to 2.5) mm²
2 x (2.5 to 6) mm²
Finely stranded with
end sleeve

2 x (0.75 to 2.5) mm²
max. 1 x 10 mm²
2 x (20 to 14) 2 x (16 to 12) AWG
1 x 12 2 x (14 to 8)