11
Instruction Manual
RECmax Lpd
3�4�2�- MEASUREMENT OF THREE-PHASE NETWORK: RECmax Lpd 4-POLE
17
18
Figure 4: Measurement of three-phase network: RECmax Lpd 4-poles�
The
EXT
input enables the motorised switch to be controlled remotely (opening and
closing). The input is activated when terminals 12-13 are short circuited with an ex-
ternal voltage-free contact, for example a button. Said input acts as an edge-trig-
gered bistable T-type input, i.e., the status of the main switch changes on each pulse,
if the switch is open it closes, if it is closed it opens.
The N-L auxiliary power supply (terminals
1-3
) may be external to the installation to
be protected, but in no case it must be connected downstream from the main switch.
Make sure that the Neutral conductor connection is made as indicated in the con-
nection diagrams in this manual.
