Mains terminal block, the connection between the fixed wiring and the appliance for some models of oven. 6 terminal. These usually burn out due to poorly tightened connectors within the block, its important to have these fitted by a qualified electrician. Designed to be connected with circular flexible cable: 
PARMCO: FS9S-5-3, some FS54R & FS54CER versions, please check
ROBINHOOD: RHFS54RC, RHFS60XC
VOGUE: 310140, 310141, 310142
OTHER: EFS54FC-DCW EFS54FC-DDS EFS54FC-SEB EFS54FC-SES EFS54RC-DCB EFS54FC-SEW EFS54RC-DCW EFS54RC-DRW FC9PS TFS54FC-SES TFS54FC-SEW TFS54RC-DRW FC9PS CERHE06PSS-2 CERHE09PSS-2 CS9TS RVU60CERB RVU60CERSS RVU90CERSS EFS54FC-DCW EFS54FC-DDS EFS54FC-SEB EFS54FC-SES EFS54RC-DCB EFS54FC-SEW EFS54RC-DCW EFS54RC-DRW FC9PS TFS54FC-SES TFS54FC-SEW TFS54RC-DRW