Megger   RCDT310-EN-SC   Residual Current Device Testers Test standard, DC, selective, and programmable RCDs Ramp testing Auto (Remote) testing 3 Phase safe Enables testing on 110 V centre tapped supplies Tough rubber armoured case with built-in cover Weatherproof to IP54 USB interface for downloading test result Specifications RCD Test Randes Supply: RCDT310 100 V – 280 V 45Hz to 65 Hz Voltage measurement Range ac: 0V – 300V 25Hz to 45Hz Frequency measurement Range: 25Hz to 450Hz