Zaptec Sense can connect to either of these:
Carlo Gavazzi
1 phase 100A DIN inline: EM112DINAV01XS1PFB
3 phase 65A DIN inline: EM340DINAV23XS1X
1 phase, DIN, CT: EM111DINAV51XS1X
3 phase, DIN, CT: EM330DINAV53HS1PFB
Janitza
3 phase, DIN, CT: UMG604-E
3 phase, panel-mount, CT: UMG96RM-E-RCM
3 phase, DIN, CT: UMG604-E
3 phase, panel-mount, CT: UMG96RM-E-RCM
Note: Zaptec Sense HAN (Norway only) connects to the HAN port of the installations e-meter.