HELVAR ballast control by C-IR-0203S module

To control the HELVAR electronic ballasts (and similar types of other manufacturers) designed to dim fluorescent lamps controllable by analog voltage 0 ÷ 10 V or 1 ÷ 10 V, it is possible to use e.g. the C-IR-0203S module, which is fitted with a relay output to switch off the ballast power supply (complete switching off, cutting a permanent consumption) and an analogue output for the brightness control itself, which can be fitted directly in the lighting fitting or in the flush box.

Fig. .1 A wiring example – dimming fluorescent lights ballasts 1÷10 V by the C-IR-0203S module

Notes:

1. The module is equipped with a relay with a maximum inrush current of 80 A; in the case of simultaneous control of multiple ballasts it is necessary to keep the total current below this value when the power supply is on.