DEB71 Earth Leakage Monitoring Relay Benefits Adjustable trip level. Adjustable leakage threshold from 30mA to 5A or from 300mA to 30A. 2 outputs. Two relay outputs provide, besides the alarm signal an additional warning output. Level indication. LED Bar shows at a glance the real time leakage level. Nuisance tripping safe. EN 60947-2 Annex M conformity. Anti tampering. Sealable front lid provides protection against possible tampering. Remote R/T button. Input for external reset switch allows remote system restart in case of tripping. Single / Threephase mains. The DEB71 can be used on both three phase or single phase. Description The DEB71 is an adjustable modular residual current relay which, in conjunction with the MCB and the CT, provides protection against possible risks arising from insulation or grounding faults, by interrupting the mains on faulty loads or lines. The setpoint of the leakage current is adjustable. The device is equipped with two changeover relay outputs. One output triggers at 60% of fault current setpoint value providing a warning to user, the other output is used to shut down the system to prevent accidents. Applications The DEB is a flexible device and can be used for all the applications where the loss of insulation, and/or grounding failure, could lead to severe consequences. 25/07/2018 DEB71 DS ENG Carlo Gavazzi Controls S.p.A. 1DEB71 Structure A H B I C J D K M E F N G O P Element Component Function A Output 1 Main alarm SPDT relay output: 11 C, 12 NC, 14 NO B LED ON Power ON GREEN LED C Test pushbutton When pressed it will test the system integrity D LED AL Alarm RED LED. It turns ON when current exceeds 80% of In E Reset pushbutton Restores operation after an alarm has been triggered F LED PRE Warning YELLOW LED. Lit when leakage level exceeds 60% of set In G Power supply terminals Power supply from 24VAC to 240VAC H Output 2 Warning alarm output: 21 C, 22 NC, 24 NO I LED L3 60% In LED Bar J Alarm set In current alarm threshold setting K LED L2 40% In LED Bar M Delay set t alarm delay setting from 0 to 5s N LED L1 20% In LED Bar O Sensor input Input for external Core Balance Transformer (CTG) P Remote R/T Input for remote R / T pushbutton (in conjuction with A2) 25/07/2018 DEB71 DS ENG Carlo Gavazzi Controls S.p.A. 2