ELECTRICITY METER LEM-40
DIGITAL - THREE-PHASE USER’S MANUAL
ZAMEL Sp. z o.o.
ul. Zielona 27, 43-200 Pszczyna, Poland
tel. +48 (32) 210 46 65, fax +48 (32) 210 80 04
lem-40_inst_ext_gb | 10.02.21
FEATURES
TECHNICAL DATA
DESCRIPTION
APPEARANCE
Power supply terminals: top - inputs (IN): L1, L2, L3, N
bottom - outputs (OUT): L1, L2, L3, N
Reference voltage: 3 x 230 V / 400 V AC
Voltage tolerance: -15 ÷ +10 %
Rated frequency: 50 / 60 Hz
Base current (Ib): 3 x 10 A
Maximum current (Imax): 100 A
Operating current range: 0,4% Ib÷ Imax
Current overload: 30x Imax for 0,01 s
Meter own consumption: 10 VA / 2 W
Accuracy of measurement (IEC61036): class B (class 1)
Display: Counter 6+2 digits
Indication for pulse counting: red LED
Pulse output SO+ SO-: OC type, terminals: 22 (-), 23 (+)
Connection voltage SO+ SO-: 5 ÷ 27 V DC
SO+ SO- connection current: < 27 mA
SO+ SO- contant: 1000 pulses per kWh
Pulse time SO+ SO-: 30 ms
Number of connection terminals: 10
Cross-section of connection cables: main connection: 4 ÷ 25 mm2
pulse output: minimum 0.2 mm2
Operating temperature: -25 ÷ +55 oC
Enclosure mounting: TH 35 rail (according to EN 60715)
Enclosure IP rating: IP51
Overvoltage category: II
Contamination degree: 2
Dimensions: 72 x 100 x 66 mm
Weight: 0,700 kg
● Three-phasedigitalenergymeter,
● ClassB(equivalenttoclass1),
● Maximumcurrentofthemeter:100A,
● 6+2LCDdisplay,
● Additionalpulseoutput,
● Indicationforpulsecounting,
● Signalling the presence of voltage of each
phase,
● Sealableterminalcovers,
● InstallationonTH35rail.
The LEM-40 digital, three-phase electricity
meter is a precision device measuring the pow-
er consumption in a three-phase system. The
meter operates in class B (equivalent to class
1). The device is equipped with a legible LCD
and signaling diodes informing about the pres-
ence of voltage of a given phase. ZAMEL LEM-
40 meter is used to monitor power consumption
of three-phase system in consumer, commer-
cial and industrial applications. The product is
ideal solution for billing the power consumption
in garages, workshops, plots of land, tenants of
facilities or for machinery control. The device
measures and displays electricity expressed in
kWh rounded to 2 decimal places (0.01kWh).
W results are presented on a 6+2 digital display.
Pulse output of the meter allows connecting
metering device and presenting the measure-
ment results on the additional display/system.
The meter can be easily installed in electric
cabinets because it has compact 4-module de-
sign (4 DIN modules). The device is equipped
withsafetyaps,whichcanbesealed.
The device should be connected
to a three-phase network in ac-
cordance with legally binding
standards. The connection meth-
od is described in this manual.
Any activities related to instal-
lation, connection, and adjustment should be
performed by qualied electricians who have
read this user’s manual and familiarised them-
selves with device functions. Removing the
enclosure voids the warranty and poses a risk
of electric shock. Before installation, make sure
that there is no voltage on connection cables.
To install the device, use a cross-head screw-
driver with a diameter of 3.5 mm. The proper
operation of the device is affected by how the
device is transported, stored, and used. It is not
advisable to install the device in the following
cases: lack of any components, damage to or
deformation of the device. If the device oper-
ates improperly, please contact the manufac-
turer.
NOTE
Do not dispose of this device together with other
waste! To avoid harmful effects on the environment and
human health, the worn-out device should be stored
in designated areas. Electrical waste from households
may be handed over to the waste collector established
for this purpose free of change and in any amount, as well as to
the store when purchasing new equipment.
LCD display
Input terminals
L1, L2, L3, N
Indication
for pulse counting
Pulse
output
Output terminals
L1, L2, L3, N
Voltage
presence indication
