3 x kWh meters at 40 Ampères loading

kWh meters running at a 40 Ampères baseload in our house.

Meterfabriek Dordrecht D3xBd 10-30 Amps 220 volts 50 Hz C=600

English Electric C31B-R M 10-60 Amps 230 volts 50 Hz C=300

Sangamo S309.2 20-80 Amps 230 Volts 50 Hz C=166 2/3