The incoming connection :
- Direct in a cage terminal, with copper or aluminium cable, flexible or rigid cables, 70mm² max.
The tightening torque is 5Nm.
Outgoings connection: in insulated spring terminals (each spring can receive only 1 cable ) :
- 6 outgoings connected with 1 to 16² flexible or rigid cables, copper or aluminium cable, without metallic crimped terminals

Remark: with same section, copper cable can supply more current than aluminium cable.