Cover profile carrier type 2 including fixing and locking screws and knurled nut suitable for terminal blocks series 283 to 285 suitable for double and triple-level terminal blocks series 279 to 281 suitable for TOPJOB® terminal blocks series 780 to 785, 775, 776 and 777 suitable for initiator and actuator terminal blocks series 280 suitable for isolating and measuring terminal blocks for converter circuits series 282 grey