Input:

250A 4P isolator 

Digital multimeter

Output:

NRG Powerlock box protected by 250A 4P MCB with VT/VS RCD with switch disable

125A/3 protected by 125A 3P MCB withVT/VS RCD with switch disable

2 x 63A/3 protected by 2 x 63A 3P MCB with VT/VS RCD with switch disable

2 x 32A/3 protected by 2 x 32A 3P MCB with VT/VS RCD with switch disable

Input for sound with clean earth:

63A/3 2P isolator

Output:

2 x 13A protected by 1 x 16A 2P 30mA RCBO.

1 x 32A/1 protected by 32A 2P 30mA RCBO.

1 x 63A/1 protected by 63A 1P MCB with VT/VS RCD with switch disable