RCD Tester

RCD Testers Reliable Tools for Electrical Safety Compliance

At AGM Electrical Supplies, our RCD Testers are designed to help electricians verify the performance and safety of Residual Current Devices (RCDs) with accuracy and confidence. These testers simulate earth-leakage faults and measure how quickly an RCD responds, ensuring it meets electrical safety standards and provides proper protection against electric shock.

Key Features of RCD Testers

Multiple Test Currents:
Most RCD testers support a wide range of test currents such as 10 mA, 30 mA, 100 mA, and higher levels for different RCD types. This allows electricians to test domestic, commercial, and industrial installations accurately.
Trip Time Measurement:
One of the most important functions of an RCD tester is to measure the exact time it takes for an RCD to disconnect the circuit. This confirms whether the device is operating within the required limits for user safety.
Ramp Test Function:
Ramp testing slowly increases the simulated fault current to identify the precise trip current of the RCD. This helps detect sensitivity problems and ensures the device is responding correctly.
Phase Angle Testing:
Many testers allow 0° and 180° phase angle selection, giving more consistent and repeatable results across different RCD types.
Wiring & Polarity Check:
Advanced testers also detect wiring issues such as reversed polarity, missing earth, or incorrect connections before a test is performed. This adds an extra layer of safety during inspections.

Why Choose AGM Electrical Supplies

AGM Electrical Supplies offers reliable, professional-grade RCD testers suitable for routine inspections, commissioning, and compliance testing. Whether you're a licensed electrician or a contractor managing large installations, our testers give you accurate readings, dependable performance, and long-term durability.

FAQs

What is an RCD tester used for?

An RCD tester is used to verify the trip time, trip current, and overall performance of Residual Current Devices to ensure they provide proper electrical shock protection.

How often should an RCD be tested?

RCDs should typically be tested during routine electrical inspections, after installation, and whenever safety compliance checks are required.

Can an RCD tester check different RCD ratings?

Yes. Most testers can assess multiple RCD types and ratings such as 10 mA, 30 mA, 100 mA, and higher sensitivity devices used in commercial or industrial setups.

Do RCD testers detect wiring faults before testing?

Many modern RCD testers include wiring polarity and earth connection checks to ensure a safe testing environment before running any trip tests.

Is an RCD tester suitable for both residential and commercial work?

Absolutely. RCD testers are designed for use in homes, offices, workshops, and industrial facilities, making them essential for professional electricians across all environments.