RISH Lay - Protector Trip Relays   Function :   The Rishabh protector trip relays have been developed to provide for continuous monitoring of electrical quantities. The units are designed for use in severe industrial environments and contain components to reduce nuisance tripping. Rishabh protector trip relays offer continuous surveillance of the monitored circuit. When the monitored parameter moves outside the set point limit, the relay operates.         All products can be DIN rail or wall mounted. 253 & 256 cases have screw holes to facilitate wall mounting. 252 cases are supplied with an adapter plate for wall mounting . All products are supplied with a clear terminal cover/anti-tamper, manufactured from flame retardant polycarbonate       General Specification :   Applicable Standards BS 60255, IS 3231-1997 Safety Requirements BS 5458, IEC 414 Temperature Range 0°C to 60°C Storage Temperature -20°C to 70°C Temp. Co-efficient 0.05% per °C Interference Immunity Electrical stress surge withstand and non function to ANSI/IEEE Enclosure Code IP50 to BS5490, IEC 529 Calibrated at 23°C Weight 252 case - approx 0.4kg 253 case - approx0.6kg 256 case - approx 1.0kg Auxiliary : A.C.: 50/60Hz 110, 120, 230, 240, 400 or 415, or 440V + 20% D.C 2, 24, 48, 110, 120, 135V +15% (maximum 156V D.C.) Maximum ripple 15% Burden 4VA maximum Output Relay : Type D.P Changeover Rating A.C 240V, 5A non-inductive D.C See chart below Operations 0.2 million at the above loads Reset Automatic         Chart for DC Rating of Relays   View chart         - Protector Trip Relays   - 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