Product Overview

3RT1 contactors/3RH1 control relays
SIRIUS System Manual
GWA 4NEB 430 0999-02 DS 01
3-107
3.4.7 Other accessories
3.4.7.1 LED module for indicating contactor control (3RT1926-1QT00)
Description The LED module can be connected to the coil terminals of the contactors of
frame sizes S0 to S3. It indicates the status of the contactors by means of
yellow LEDs.
Mode of operation The LED module can be used for AC/DC voltages of 24 V to 240 V.
The LEDs are connected bidirectionally to protect against polarity reversal.
Both LEDs light up in AC control, and one lights up in DC control, depending
on the polarity.
Connection The LED module is connected to the A1 and A2 coil terminals of the contac-
tor.
Installation The LED module is snapped onto the front in the openings intended for the
inscription plate.
Fig. 3-68: LED module
3.4.7.2 Auxiliary connecting lead terminal, 3-pole for frame size S3 (3RT19 46-4F)
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:
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 3-42: Conductor cross-sections of 3-pole auxiliary connecting lead terminals (for frame size S3)