Megger RCD Tester, 30 to 500mA Current Testing Range, AA Battery Type - RCDT300 Series - RCDT310-EN-BS Check that your electrical safety device is in peak condition with this RCD tester from Megger. You can use it to assess RCDs with rated currents of 30, 100, 300 and 500mA, so it's a handy measurement solution to have in your lineup. Thanks to the adjustable trip time test feature, you can make sure your RCD is in tune with your preset time delay before it trips a circuit. A built-in LCD on the tester shows the readings clearly, so you can easily keep track of any changes. Features & Benefits • Polarity selection of 0 and 180º for testing live and neutral wires
• Colour-coded ranges enable quick and convenient setting
• Battery status indicator for easy monitoring of power level
• Safety interlock stops the unsafe connection of test leads to help prevent electrical hazards Applications • Electrical engineering
• Packaging facilities
• Assembly plants
• Building maintenance How does an RCD work? An RCD monitors the flow of current in a circuit. If it senses a fault or earth leakage between the live and neutral current, it quickly cuts off the power supply. This helps to prevent electric shock and fire, keeping the operator and equipment safe.