Product review (5 stars): Beautiful!.
Slick!  Hot! Beautiful!

...But you need to know how to wire it properly.  Don't be confused by 120V/240V code and the instructions that say you can use 3 or 4 wires.

This cooktop is a 240V/208V-ONLY appliance.  This cooktop comes with a black, red, and ground wire.  That being the case, you do not need the connect the white-neutral wire, because you do not need the 120V for this cooktop to operate.  Just cap the white wire (which is only needed for 120V applications) and leave it floating in the junction box.  Then connect the ground wire-to-ground and grown both to the junction box.  This will let Earth Leakage Current to flow to ground.

Then replace you mini circuit breaker 30/40Amp Mini Circuit Breaker (MCB) with a 40/50A Residential Current Circuit Breaker with Overload (RCBO) circuit breaker.  Why?  Your Master RCD will not trip since the white wire is disconnected.  And your MCD will not detect excessive leakage current to ground.  So you need an RCCB that will do both.

Remember, this is a 240V/208V-ONLY cooktop and conventional wiring diagrams for 120V/240V system does not apply.