Connection Methods; Screw-Type Connection - Siemens 3UG4 User Manual

3.3

Connection methods

3.3.1

Screw-type connection

Screw-type connection
Use the following tool to establish the connection: All SIRIUS monitoring relays feature
size PZ 2 screws for Pozidriv screwdrivers.
The devices have screw terminals with captive screws and washers. The screw terminals
also allow for the connection of 2 conductors with different cross-sections.
Connection cross-sections of the removable terminal blocks with screw-type connections
Table 3- 1 Removable terminal block with screw-type connections - monitoring relays
Tool
Tightening torque
Solid and stranded
Finely stranded without end sleeve
Finely stranded with end sleeve
AWG
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
3.3 Connection methods
Removable terminal
Pozidriv size PZ 2, Ø 5 to 6 mm
0.8 to 1.2 Nm
1 x (0.5 to 4) mm²
2 x (0.5 to 2.5) mm²
---
1 x (0.5 to 2.5) mm²
2 x (0.5 to 1.5) mm²
2 x (20 to 14)
System overview
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