Siemens SIRIUS 3RU2 - Main Circuit; Main Circuit Terminals

Technical data
11.3 3RU21 thermal overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
118 Manual, 09/2014, A5E03656507420A/RS-AA/002
11.3.2.2
Main circuit
Technical data for the main circuit, 3RU2136 overload relays
3RU2136-....
Insulation voltage
with degree of pollution 3
rated value
V 690
Impulse voltage resistance
rated value
kV 6
Operating voltage
rated value
V 690
Voltage type
for main circuit
AC/DC
Operating frequency
• rated value
Hz
50 … 60
Type of assignement
2
Derating factor
for rated value of the operating current
up to 60 °C interior cabinet temperature
1
Derating factor
for rated value of the operating current
up to 70 °C interior cabinet temperature
0.87
11.3.2.3
Main circuit terminals
Technical data for main circuit connection, 3RU2136 overload relays
3RU2136-....
Arrangement of electrical connectors
for main current
circuit
Top and bottom
Design of the electrical connection
for main current
circuit
screw-type terminals
Type of the connectable conductor cross-section
• for main contacts
– solid or multi-stranded
2x (1 ... 35 mm²), 1x (1 ... 50 mm²)
– finely stranded with conductor end processing
2x (1 ... 25 mm²), 1x (1 ... 35 mm²)
• for AWG conductors for main contacts
2x (18 ... 2), 1x (18 ... 1)
Tightening torque
for main contacts
with screw-type
terminals
N·m
3 … 4.5
Design of the thread
of the connection screw
for main
contacts
M6
Design of screwdriver shaft
5 to 6 mm diameter
size of screwdriver tip
Pozidriv PZ 2