3SU12 compact units
7.1 Overview
SIRIUS ACT 3SU1 pushbuttons and signaling devices
152 System Manual, 08/2018, A5E03457306020A/RS-AK/010
7.1.2 Indicator lights with "traffic light" LED
On the version of the indicator light with "traffic light" LED, three different colors (red / amber
/ green) can be displayed.
If the power supply is connected at X1 - X2, a green light is generated. If the power supply is
connected at X3 - X2, a red light can be generated. For the yellow light, the power supply
must be connected at X1/X3 - X2.
Indicator lights
Collar / Front ring
material
Variant Article number
Plastic / Plastic
• Red / amber / green
6 ... 24 V AC/DC
3SU1201-6AG24-1AA0
110 V AC 3SU1201-6AC24-1AA0
230 V AC 3SU1201-6AF24-1AA0
Metal / Metal
• Red / amber / green
6 ... 24 V AC/DC
3SU1251-6AG24-1AA0
110 V AC 3SU1251-6AC24-1AA0
230 V AC 3SU1251-6AF24-1AA0
Example of a traffic-light LED circuit
The example shows a 3-position selector switch. Two pressure plates are installed.
① Holder position left ⇒ LED green
② Holder position right ⇒ LED ret
③ Holder position center ⇒ LED yellow