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Technical
Section 9
Dimensions
Section 10
Kilowatt hour meters
Metering and
measurement
5
Description
EN40, EN40p
Allow the comb busbar to pass.
1
Remote transfer pulse output (EN40p).
2
Green power-on indicator light.
3
Yellow metering indicator light (flashing).
4
Display unit.
5
Seal.
6
ME1, ME1z, ME1zr
Pulse output for remote transfer (ME1zr).
1
Flashing meter indicator.
2
Total or partial meter display (ME1z, ME1zr).
3
Wiring error indicator.
4
Push-button: total or partial meter display, reset partial meter (ME1z, ME1zr).
5
Sealing connection.
6
ME3, ME3zr, ME4, ME4zr, ME4zrt
Pulse output for remote transfer (ME3zr, ME4zr, ME4zrt).
1
Flashing meter indicator.
2
Total or partial meter display (ME3zr, ME4zr, ME4zrt) and CT rating display
3
(ME4zrt).
Push-button: total or partial meter display (ME3zr, ME4zr, ME4zrt), reset partial
4
meter, display or selection of CT rating (ME4zrt).
Installation
The front panel of the product is IP40 and its housing is IP20
b
b
Its installation must be appropriate to the operating conditions
b
b
The protection must not be less than IP65 for outdoor use
b
b
Use with a contactor
A measurement instrument is normally continually supplied.
For a non-continuous supply (load switching), we recommend that you place the
breaking device downstream from the measurement instrument to limit disturbances
on the module inputs.
These disturbances, particularly on inductive loads, may result in early ageing of the
device.
You must also place the measurement instrument at a distance from the breaking
device to limit the risk of disturbance.
EN40p.
MEzr.
ME4zrt.
Circuit-breaker
Circuit-breaker
Contactor
Load
Load
Kilowatt-hour meter
Kilowatt-hour meter
Contactor
Example: meter on a load switching