Megger Rcdt310-residual Current Device Tester


  • Tests standard RCD’s, DC RCD’s & Selective residual current devices (RCD’s)
  • 3 Phase safe
  • Weatherproof to IP54
  • 3 Year Megger warranty
  • Megger calibration certificate
  • Enables testing on 110 V centre tapped supplies
  • Tough rubber armoured case with built-in cover
  • Comes Supplied with a Megger Hard Carry Case FREE
(1 customer review)
SKU: 3605

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Megger Rcdt310 residual Current Device Tester

The Megger RCDT310 Residual Current Device Tester is a robust and reliable instrument designed for comprehensive testing of residual current devices (RCDs). This tester is an essential tool for ensuring the safety and functionality of RCDs, which are crucial for protecting electrical circuits from ground faults.

Key Features of the Megger RCDT310:

Versatile Testing Capabilities: The RCDT310 can perform a range of tests including 1/2I, 1xI, and 5xI on various types of RCDs, such as general, selective (time-delayed), and those rated at 30 mA, 100 mA, 300 mA, and 500 mA. This capability makes it suitable for a wide range of applications, ensuring that all types of RCDs can be tested for compliance and safety.

Ease of Use: With its intuitive interface, the RCDT310 displays trip times directly on the screen, making it straightforward for technicians to interpret results quickly and accurately. The clear, easy-to-read display enhances user efficiency during testing procedures.

Additional Features for Enhanced Functionality: For professionals requiring more advanced features, the Megger RCDT330 offers downloadable capabilities and the ability to test programmable RCDs, providing an upgrade path for those needing to expand their testing capabilities.

Durable and Weatherproof: Built to withstand harsh environments, the RCDT310 comes housed in a tough rubber-armoured case with a built-in cover and is rated weatherproof to IP54. This design ensures that the device can perform reliably in a variety of weather conditions, making it ideal for field use.

Three-Phase Safe and 110 V Center Tapped Supply Testing: This device is safe to use on three-phase electrical systems and can conduct tests on 110 V center tapped supplies, adding to its versatility in handling different electrical systems.

Comprehensive Warranty and Accessories: Megger backs the RCDT310 with a three-year warranty and includes a calibration certificate with each unit, affirming its accuracy and reliability. Additionally, it comes supplied with a Megger hard carry case free of charge, providing added value and protection for the device.

For more information on other models, such as the Kyoritsu 4118A , Megger RCDT320 click on the relevant link

Megger RCDT310-RESIDUAL specifications:

Power Supply

  • RCDT310 100 V – 280 V 45 Hz to 65 Hz
  • Batteries: 8 x 1,5 V cells IEC LR6 type (AA alkaline).
  • Rechargeable: 8 x 1.2 V NiCd or NiMH cells.
  • Battery Life: 2000 consecutive tests
  • RCD Test Ranges (to EN61557-6)

Test Current Accuracy

  • No Trip Test: (1/2I) –8% to –2%
  • Trip Test: (I, 5I) +2% to +8%
  • Trip Time: ±1% ±1ms

Voltage measurement – (RCDT330, RCDT320 & RCDT310)

  • Range ac: 0V – 300V 25Hz to 450Hz
  • Accuracy: ±2% ±2 digits
  • Temperature and humidity
    • Operating Range: -5°C to +40°C
    • Operating Humidity: 93% R.H. at +40°C max.
    • Storage Range: -25°C to +70°C
    • Maximum altitude: 2000m
    • Environmental Protection: IP54

    The Megger RCDT310 meets these Safety standards:

    • The requirements of IEC61010-1 Cat III 300V phase to earth.
    • IEC61557 Complies with the following parts of EN61557, Electrical safety in low voltage systems up to 1000 V ac and 1500 V dc – Equipment for testing, measuring or monitoring of protective measures.
    • Part1 – General Requirements
    • Part4 – Residual current devices
    • E.M.C.
    • In accordance with IEC61326-1
    • Weight: 980gms
    • Dimensions: 203x148x78 mm
1 review

1 review for Megger Rcdt310-residual Current Device Tester

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  1. habib

    Good tester

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Megger since 1889 is a leading global premium manufacturer of measurement and testing technology. Megger top priority has always been to make your everyday work easier and safer. As such, insulation testers, micro-ohmmeters, and multimeters are among the long line of Megger inventions, making this brand one of the pioneers in the electrical industry. Megger products combine many years of experience and the valued feedback from our global users with the inventiveness and conscientiousness of our product developers. In Germany, we manufacture at three sites, Aachen, and Baunach near Bamberg and Radeburg near Dresden. Other manufacturing locations are based in Sweden, England, and America.



Data Sheet


Specification Category Details
Power Supply RCDT310 100 V – 280 V 45 Hz to 65 Hz, Batteries: 8 x 1.5 V cells IEC LR6 type (AA alkaline), Rechargeable: 8 x 1.2 V NiCd or NiMH cells, Battery Life: 2000 consecutive tests
RCD Test Ranges (to EN61557-6) Test Current Accuracy, No Trip Test: (1/2I) –8% to –2%, Trip Test: (I, 5I) +2% to +8%, Trip Time: ±1% ±1ms
Voltage Measurement Range AC: 0V – 300V 25Hz to 450Hz, Accuracy: ±2% ±2 digits
Temperature and Humidity Operating Range: -5°C to +40°C, Operating Humidity: 93% R.H. at +40°C max., Storage Range: -25°C to +70°C
Maximum Altitude 2000m
Environmental Protection IP54
Safety Standards IEC61010-1 Cat III 300V phase to earth, IEC61557, EN61557 parts 1 and 4, E.M.C. compliant with IEC61326-1
Weight 980 grams
Dimensions 203 x 148 x 78 mm