The 8WD4308-0DB with Signallers accessories: vertical holder; 8WD44 manufactured by Siemens is a signal unit for machine operation and control. It enables the signalisation of operating states via colour-coded LEDs. The unit is also equipped with a power switch, an emergency stop button and two signal outputs. The power supply to the unit is 230V AC. The 8WD44 Signallers accessories: vertical holder provides a secure mounting option for the signal unit.