Air Circuit Breaker Microprocessor

Microprocessor Based Communication Capable Release  SR71Features Micro-controller based RMS sensingOffers comprehensive protection for overload, short circuit, instantaneous, earth fault and neutral overloadHigh resolution backlit LCD displayIntelligent Pre-trip alarm to prevent system shutdownPassword protected setting and commandsMODBUS RTU protocolIntrinsic RS 485 PortTotal breaker control and monitoring through PCLED indication for POWER ON, different fault and Pre-trip alarm2 sets of storable protection settingNon-volatile memory to store last 5 trips history128 Event recording with time & date stamping3 programmable contacts-1 for micro controller failure, 2 for basic fault annunciationl4 relay contacts for indication of maximum demand exceed, Pre-trip alarm, and control on breaker (closing and opening)Auto-doubling features to prevent nuisance trippingSelectable it based current for short-time and earth fault zonesThermal reflectivity enables faster tripping on recurrent overloadsIntelligent discriminationSelf-diagnostic and monitoring with tri-colour LED indicationConformance to EMC standards