A.C. Current Relay   Application :   The Rishabh A.C. Current Protectors provide continuous surveillance of the monitored circuit. When the current moves outside the set point limit, the relay operates. An adjustable time delay is provided to prevent the relay from tripping for a predetermined period to prevent nuisance tripping. An illuminated LED indicates when the relay is energized. For 3 phase systems, the sequence of connection is not important.   The Protector can be used to protect for:   • Over current   • Under current   • Load detection   • Monitoring of electric heating systems       Features :   • Adjustable set point   • Adjustable time delay   • LED trip indication   • 2 pole relay contacts         Specifications :   Input : Nominal current 1A or 5A from C.T. secondary 2,3,4,6,8 or 10A (min 0.2A) Frequency 50/60/400 Hz Burden 0.5VA per phase Overloads 2 x rating continuously 10 x rating for 3 seconds to BS6253 Set Point : Repeatability 0.5% of full span Differential Preset at 1% Other values 1 to 10% to order Range 40 to 120% of nominal current Time Delay Up to 10s adjustable. Max 30s.     Auxiliary Supply : A.C : 50/60Hz 120, 230, 240, 400 or 415V +/- 20% (57 to 480V) D.C 12, 24, 48, 110 or 120V +15% maximum ripple 15% Burden 4VA maximum Weight 252 case approx 0.4kg 253 case approx 0.6kg     Output Relay : Type D.P. Changeover Rating A.C 240V,5A non-inductive   D.C View chart Operations 0.2 million at the above loads Reset Automatic             - Protector Trip Relays   - Motor Protection Relay   - Earth Fault Relay   - A.C. Current Relay   - A.C. Voltage Relay with adjustable differential   - A.C. Voltage Relay with adjustable time delay   - Frequency Relay   - Combined Under / Over Voltage & Under / Over Frequency Relay   - Phase Sequence & Phase Failure Relay   - Phase Balance Relay   - Reverse Power (Current) Relay   - Synchro-Check Relay(Paralleling)   - D.C. Voltage Relay   - Thermistor Trip Relay   - Hot Spot 3 Relay   - Hot Spot 6 Relay   - Millivolt / Thermocouple Relay   - Transducer Trip   - Speed Sensing Trip Relay