3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-79
Installation
The LED module is snapped onto the front in the openings intended for the
inscription plate.
Figure 3-61: LED module
3.4.7.2 Auxiliary connecting lead terminal, 3-pole (for frame size S3)
Using the 3-pole auxiliary lead terminal, auxiliary and control cables can be
connected to the main cable terminals.
Conductor cross-sections of auxiliary connecting leads that can be con-
nected:
3.4.7.3 EMC module (3RT1916-1P..)
In the case of motors or various inductive loads, back-e.m.f (electromotive
force) is produced at disconnection. This can produce voltage peaks of up to
4000 V with a frequency range of 1 kHz to 10 MHz and a rate of voltage vari-
ation of 0.1 to 20 V/ns.
Capacitive coupling to various analog and digital signals makes suppression
necessary in the load circuit.
Description
The connection of the main conducting path to the EMC suppression mod-
ule reduces the contact sparking that is responsible for contact erosion and
many of the clicks, which in turn supports an EMC-compatible configuration.
Screw-type terminals (1 or 2 conductors can be connected)
Single-core mm
2
2 x (0.5 to 1.5); 2 x (0.75 to 2.5) in acc. with IEC 60 947;
Max. 2 x (0.75 to 4)
Finely stranded with wire end ferrule mm
2
2 x (0.5 to 1.5); 2 x (0.75 to 2.5)
AWG cables, single- or multi-core AWG 2 x (20 to 16); 2 x (18 to 4); 1 x 12
Terminal screws M3
Tightening torque Nm 0.8 to 1.2 (7 to 10.3 lb.in)
Table 3-30: Conductor cross-sections of 3-pole auxiliary connecting lead terminals (for frame size S3)
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