merlin gerin master pact

[cphood]

hi all
does anyone know how to adjust a MH20 H1 masterpact switvh
i need it to be reduced to 1100amps but the switch has no settings on the front?
colin

 

[jim dungar]

hi all
does anyone know how to adjust a MH20 H1 masterpact switvh
i need it to be reduced to 1100amps but the switch has no settings on the front?
colin

What trip unit is installed?