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Kilowatt hour meters
Metering and
measurement
Technical
Section 9
Dimensions
Section 10
Specific technical data
EN40, EN40p, ME1, ME1z and ME1zr specific technical data
EN40 EN40p
ME1
ME1z
ME1zr
Direct measurement
Up to 40 A
Up to 63 A
Metering and activity indicator light
(yellow)
3,200 flashes per kWh
1,000 flashes per kWh
Wiring error indicator
Yes
Total meter (max. capacity) on one
phase
999 999.9 kWh
999.99 MWh
Total meter display
In kWh with 7 significant digits
In kWh or MWh with 5 significant digits. No decimal point in
kWh; 2 digits after the decimal point in MWh
Partial meter (max. capacity) on one
phase with RESET
-
-
99.99 MWh
Partial meter display
-
-
In kWh or MWh with 4 significant digits. No decimal
point in kWh; 2 digits after the decimal point in
MWh
Remote transfer
-
By static output:
- ELV insulation voltage:
4 kV, 50 Hz
- 20 mA/35 V DC max.
- 100 impulses of 120 ms per kWh
-
-
By NO impulse contact:
- ELV insulation voltage: 4 kV, 50 Hz
- 18 mA/24 V DC, 100 mA/230 V AC
- 1 impulse of 200 ms (contact closing)
per kWh
ME3 and ME3z
ME3
ME3zr
Direct measurement
Up to 63 A
Metering and activity indicator light
(yellow)
100 flashes per kWh
Total meter (max. capacity) on one
phase
999.99 MWh
Total meter display
In kWh or MWh with 5 significant digits. No decimal point in kWh; 2 digits after the decimal point in MWh
Partial meter (max. capacity) on one
phase with RESET
-
99.99 MWh
Partial meter display
-
In kWh or MWh with 4 significant digits. 1 digit after the decimal point in kWh
Remote transfer
-
By NO impulse contact:
- ELV insulation voltage: 4 kV, 50 Hz
- 18 mA/24 V DC, 100 mA/230 V AC
- 1 impulse of 200 ms (contact closing) every 10 kWh
ME4, ME4zr and ME4zrt
ME4
ME4zr
ME4zrt
Direct measurement
Up to 63 A
-
Measurement by CT
-
Ratio of 40/5 to 6,000/5 (configurable)
CT ratings choice
-
see page 92068E.indd/2
Consumption of each measurement
input
-
0.05 to 5 A
Metering and activity indicator light
(yellow)
100 flashes per kWh
10,000/x flashes per kWh
(1)
(x = CT rating)
Total meter (max. capacity) on all 3
phases
999.99 MWh
Where CT
y
150 A : 999.99 MWh
Where CT > 150 A : 9,999.9 MWh
Total meter display
In kWh or MWh with 5 significant digits. No decimal point in kWh; 2 digits after the decimal point in MWh
Partial meter (max. capacity) on all 3
phases with RESET
-
99.99 MWh
Where CT
y
150 A : 99.99 MWh
Where CT > 150 A : 999.99 MWh
Partial meter display
-
In kWh or MWh with 4 significant digits. 1 digit after the decimal point in kWh
Remote transfer
-
By NO impulse contact:
- ELV insulation voltage: 4 kV, 50 Hz
- 18 mA/24 V DC, 100 mA/230 V AC
- 1 impulse of 200 ms (contact closing) every
10 kWh
By NO impulse contact:
- ELV insulation voltage: 4 kV, 50 Hz
- 18 mA/24 V DC, 100 mA/230 V AC
- 10/x impulse of 200 ms (contact closing) per kWh
= x/10 kWh per impulse
(2)
(x = CT rating)
(1)
example: 500/5 CT = 10,000/500 flashes per kWh = 20 flashes per kWh
(2)
example: 500/5 CT = 500/10 kWh per impulse = 50 kWh per impulse