domestic and industrial automation
LE-01MR v.2 – User manual v.1.0.0
5
Part 3. Installation
Security measures
Installation of the device should be carried out by a qualified installers with knowledge
and experience in the field of electrical installations. Please read the operating instruc-
tions before installation.
All installation work must be carried out with the supply voltage switched off. Ensure
that the wires are carefully tightened – loose wires can lead to sparking, or in the ex-
treme case to ignition of the device.
Mounting
The meter should be connected to the electrical installation according to the following diagram.
It is recommended to protect the current circuit of the meter with a fuse with a level
of protection adapted to the level of load current, but not exceeding the maximum
current of the meter (100 A).
The diameter of the wires must be adapted to the value of the currents flowing
through the current circuit of the meter (terminals 1 – 3). The minimum recommended
diameter of current wires is 4 mm
2
, the maximum (with sleeve) is 25 mm
2
. Approxi-
mate diameters of the wires depending on the load current are presented in the table
below:
Cross-section
[mm
2
]
Load capacity [A]
2.5
26
4.0
34
6
44
10
61
16
82
25
108
