Installation
8
146710 / 8523612300
2018-07-02·BA00·III·en·08
Motor protection circuit-breaker
8523/8
Circuit-breaker connection diagram with connection references, options a), b), c) or d)
and connections.
8.3 Installation Conditions for Electrical Connection Cross-Sections
1 or 2 cables may be connected to a single terminal.
If the conductors are single-wire, both must have the same cross-section and be of the
same material.
Cables can be connected without any special preparation.
11530E00
11531E00
3-phase AC
Options:
a) = Shunt trip
b) = Undervoltage trip
c) = Additional auxiliary switch
d) = Additional auxiliary switch
Single-phase AC and DC
Connections:
N = neutral / -pole
P = phase / +pole
R = motor, device to be protected
Connections:
L1(1), L2(3), L3(5)
T1(2), T2(4), T3(6)
N
= Phase (input)
= Phase (output)
= Neutral
WARNING
Incorrectly installed components!
Explosion protection cannot be guaranteed any more if the components
are incorrectly installed.
When terminal sleeves are fitted, they must be gas-tight and applied with
a suitable tool.
Main contact terminals
Auxiliary contact terminals
single-wire
11532E00
11533E00
2 x 1.5 ... 10 mm
2
2 x AWG 16 to 8
2 x 0.75 ... 1.5 mm
2
2 x AWG 18 to 13
fine- or multi-stranded
11534E00
11535E00
2 x 1.5 ... 6 mm
2
2 x AWG 16 to 10
2 x 0.75 ... 1.5 mm
2
2 x AWG 18 to 16
permitted torques
1.8 ... 2.0 Nm
1 ... 1.2 Nm
13