ACCESSORY F. BREAKER 3WL GUIDE FRAME SIZE III 4000A 3-POLE, REAR VERTICAL CONNECTION WITH 3 AUXILIARY PLUG CONNECTORS WITH SIGUT SCREW TERMINALS WITH 3 CHANGE-OVER CONTACTS, OPERATION 1 CO, TEST 1 CO, ISOLATED POSITION 1 CO WITH 2-PIECE SHUTTER, CAN BE LOCKED R30= LOCKING DEVICE AGAINST OPENING D. CONTROL CABINET DOOR CODE: 3WL9213-6AD31-1BA1-Z R30 SIEMENS MANUFACTURER