Electrical Installation Testers

Electrical installation testers verify the safety of installations in domestic, commercial and industrial settings. The testers ensure that fixed wiring is safe and correctly installed to meet relevant local standards and safety requirements. Multifunction testers are ideal for testing a range of electrical parameters such as voltage, earth resistance, loop impedance and more.Many multifunction testers offer additional features such as Bluetooth, allowing you to store and transfer data from the device to a computer or mobile device.

Uses of electrical installation testers

You can use electrical installation testers for a variety of tests, including:

  • Insulation-continuity tests – diagnose breakdown of the insulation in various parts of the electrical system such as wires, transformers and motors. The quality of insulation is critical in ensuring uninterrupted and safe functioning of electrical circuits.

  • Checking RCD devices – check the proper functioning of residual-current devices (RCDs). RCDs are designed to disconnect quickly to mitigate the harm caused from electric shock and to avoid current leaks that may lead to fire and other dangerous situations.

  • Loop testing – a quick, convenient, and specific method of evaluating an electrical circuit's ability to engage protective devices (circuit breakers, fuses, RCDs). A ground loop determines the effectiveness of protective devices.

  • Resistance measurement of grounding systems – verification tests to ensure that a system's resistance is low enough to provide protection to people, equipment and structures.


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Description Price Calibrated Loop Impedance Test Type Automatic RCD Test RCD Ramp Test Non-Tripping Insulation Test Voltage Maximum Voltage Measurement Test Type Earth Resistance Measurement Downloadable Data Interface Type Continuity Test Current RCD Test Type Remote Switch Mode
RS Stock No. 899-8208
Mfr. Part No.M520T
£844.46
Each
Units
- 3 Wire Yes Yes Yes 1000V 600V Wiring Polarity Yes - - 15mA AC Type, DC Selective Yes
RS Stock No. 867-5627
Mfr. Part No.M520R
£1,599.23
Each
Units
- - Yes Yes Yes 3700V 500V Wiring Polarity Yes Yes - - AC Type, DC Selective -
RS Stock No. 899-8201
Mfr. Part No.M503A
£1,112.69
Each
Units
- Phase to Earth, Phase to Neutral - Yes - 3700V 600V Wiring Polarity Yes - - 15mA DC Selective Yes
RS Stock No. 899-8205
Mfr. Part No.M503B
£1,375.00
Each
Units
- Phase to Earth, Phase to Neutral - Yes - 3700V 600V Wiring Polarity Yes - - 15mA DC Selective Yes
RS Stock No. 136-5808
Mfr. Part No.M500Y
£2,974.23
Each
Units
- Line to Earth Yes Yes - 1000V 500V Auto Test, RCD Test, RCD Trip Current, RCD Trip Time Yes Yes Bluetooth - B, B+, G, R -
RS Stock No. 136-5806
Mfr. Part No.M520P
£1,941.92
Each
Units
- Line to Earth Yes Yes - 1000V 500V Auto Test, RCD Test, RCD Trip Current, RCD Trip Time Yes Yes Bluetooth - B, B+, G, R -
RS Stock No. 136-5807
Mfr. Part No.M500V
£2,106.92
Each
Units
- Line to Earth Yes Yes - 1000V 500V Auto Test, RCD Test, RCD Trip Current, RCD Trip Time Yes Yes Bluetooth - B, B+, G, R -