ELECTRONIC TRIP UNIT VL 400 3-POLE, SYSTEM PROTECTION ETU22, LSIG 3 PHASES/4 WIRES WITH CONNECTING LEAD IR= 126...315A, OVERLOAD PROTECTION, ISD=1.5 TO 10 X IR, II=11 X IN SHORT-CIRCUIT PROTECTION SCREWED UNION CONNECTIONS IN SCOPE OF DELIVERY OF CONTACT UNIT