Nibe SAM 42 - Technical Data

NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with national provisions.
The main product must be disconnected from
the power supply when installing SAM 42.
• To prevent interference, sensor cables to external
connections must not be laid close to high voltage
cables.
• The minimum area of communication and sensor
cables to external connections must be 0.5 mm² up
to 50 m, for example EKKX, LiYY or equivalent.
• SAM 42 restarts after a power failure.
The electrical circuit diagram is at the end of this Installer
handbook.
Use a suitable tool to release/lock cables in terminal
blocks.
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
1
2
Supply
SAM 42 is connected to a earthed single-phase wall
socket or a permanent installation. For permanent install-
ations, SAM 42 must be preceded by a circuit breaker
with at least a 3 mm breaking gap.
Connecting
communication
ON
1 2 3 4 5 6 7 8
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
AA5-S2
SAM 42 contains an accessory board (AA5) that con-
nects directly to the main product’s input board (terminal
block AA3-X4).
If more accessories are to be connected, or are already
installed, the boards are connected in series.
Because there can be different connections for accessor-
ies with accessory board (AA5), you should always read
the instructions in the manual for the accessory that is
to be installed.
15Chapter 5 | Electrical connectionsSAM 42
5 Electrical connections