User Manual

The internal relay contacts are only capable of switching a resistive load of up to 1 Amp at 24
volts. If higher voltages or currents have to be switched an external relay, providing that it has a
coil voltage between 6 and 9 volts, can be used in place of the internal one by connecting it as
shown in Figure 4:
If both the internal relay
and
an external one are required, then connect them as shown in Figure
5: