9
6.
Connect the output of a MCB, RCD, or other protection device to the “
Live
” (
L
) terminal of
the Mini CT Meter, and a neutral line to the “
Neutral
” (
N
) terminal. The protection device
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 source and voltage share the same phase. A single-pole protection
device rated to 20A or less is required for TT and TN power distribution systems. In IT power
distribution systems, a double pole protection device must be used. Refer to local
regulations to determine the installation requirements for each region.
Figure 3: Wiring diagram showing a typical installation of an SS9007 in a
TT or TN power distribution system
