PROTIME's Newly LAUNCHED Earth leakage Relay N22B-ELR has widest tripping range in single unit starting from 30mA to 30A covering almost all standard setting requirements. N22B-ELR also has dual range Time delay settings from 0.1Sec to 30Secs N22B-ELR has a unique and most important features for all OEMs of interchangeability of PROTIME's B series CBCTs with any N22B-ELR We at PROTECH manufacture & Export WIDE Range of PROTIME make Electronic and Digotal Power Protective Relays like - Earth Leakage Relays/ Earth Fault Relays/Voltage & Current Relays for AC / DC Applications, Diesel Engine Controllers, & Time delay Relays.