A and B models

From Wiki

Smart energy meters

ABB smart energy meters technical information

Energy meter manufacturer Type Power supply (V) Supported model for DLB* Supported model for Solar* MID certified 1/3 phase Datasheet
ABB series A A41
x V +
x V +
A42
x V +
x V +
A43
x V +
x V +
A44
x V +
x V +
ABB series B
B21
x V +
x V +
B23
x V +
x V +
B24
x V +
x V +

ABB meters wiring:

Powering the energy meter

To correctly connect smart energy meter to power source: