Connection and configuration of the ABB B21 meter
(single-phase)
The indications set out below are necessary to connect the meter to the inverter. Always refer
to the specic documentation supplied with the ABB B21.
The energy meter ABB B21
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is a DIN rail device (2 modules) and must be
installed where the electricity supply is single-phase.
To avoid risks of electrical shock, all wiring operations must be carried out with the AC disconnect
switch (or the supply meter) upstream of the meter disconnected.
• Disconnect the AC disconnect switch upstream of the meter.
• Strip the insulation of the cable for the length which is indicated on the
meter (13mm).
• Connect the cables of the single-phase line in accordance with the la-
yout printed on the meter (L and N) to the AC connection terminal block
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and tighten the screws (tightening torque 3.0 Nm).
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