9
terminal. The protection devices used for this purpose need not necessarily be on the same
circuit that the device will be monitoring (i.e. the circuit to which the CT is connected),
although care should be taken to ensure the current sources and voltages
share the same
phase
.
Figure 1: Mini Three Phase Meter monitoring a Three Phase load
Cable of minimum cross section 0.1mm
2
and maximum cross section 1.5mm
2
(stranded) or 2.5mm
2
(solid core) may be used.
IMPORTANT:
If the circuits being monitored are connected to a protected neutral (e.g. via an RCD),
ensure that the Mini Three Phase Meter is also connected to the same protected neutral,
and not to the main neutral link.
