ELECTRONIC TRIP UNIT VL 400 4-POLE, PLANT PROTECTION ETU20, LSI IR= 126...315A, OVERLOAD PROTECTION, ISD=1.5 TO 10 X IR, II=11 X IN SHORT-CIRCUIT PROTECTION, N-PROTECTED SCREW CONNECTIONS INCLUDED IN SCOPE OF SUPPLY OF CONTACT UNIT MARINE APPROVAL FOR LRS, DNV AND GL