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Loop and RCD testers can work in tandem, with an RCD (Residual Current Device) capable of breaking an electrical circuit before it causes harm, whereas a Loop Tester is a quick, convenient and highly specific method of evaluating an electrical circuit for its ability to engage protective devices (circuit breakers, fuses, Ground-fault circuit interrupter).Loop testers and RCD testers are critical tools for professionals in the electrical industry, enabling them to assess the safety, compliance, and performance of electrical circuits and protective devices. By utilising these testers, electricians, electrical engineers, safety inspectors, facility managers, and maintenance technicians can ensure electrical systems are operating safely and within regulatory standards

### What are the functions of Loop Tester?

The primary reason for earth loop impedance testing is to verify that if a fault occurs in an electrical installation, sufficient current will flow to operate the fuse or circuit breaker protecting the faulty circuit within a predetermined time. The aim is to make sure that the circuit is disconnected fast enough to prevent overheating and possibly a fire.

### What are the functions of a RCD Tester?

With a single-phase circuit, the device monitors the difference in currents between the line and neutral conductors. This life-saving device, designed to prevent you from getting a fatal electric shock if you touch something live, (e.g. bare wire), offers a level of personal protection that ordinary fuses and circuit-breakers cannot provide.RCD is a generic term applied to a family of products which open automatically in response to a residual current equal to or greater than the RCD's rated residual operating current.An RCCB differs from an RCBO in that the RCBO will additionally respond to over current conditions whereas the RCCB will not respond to such conditions. The term SRCD applies to an RCD which is an integral part of a socket outlet or which is fitted in a box immediately next to a socket outlet. Please see our [guide to learn more](/web/content/discovery/ideas-and-advice/what-is-rcd-testing).

### Why choose RS for your Loop and RCD Testers?

RS have a comprehensive range of Loop and RCD Testers for a multitude of applications, from market-leading brands such as Megger and our very own brand RS PRO. RS have on hand technical advisers that can provide you with vital information not only on the product, but on our calibrated service. All of our products are available for next day delivery.



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Loop Tester | RCD Tester | Digital | RS

Loop & RCD Testers

RS PRO Digital RCD Tester RCD Test Current 10mA

Megger LTW425-EU-BS Loop Impedance & RCD Combined Tester RCD Test Type AC

Megger LT300-EN-BS Loop Impendance Tester, Loop Impedance Test...

Megger LTW325-EU-BS Loop Impedance & RCD Combined Tester RCD Test Type AC

RS PRO Digital RCD Tester RCD Test Current 10mA UKAS Calibration

RS PRO Digital RCD Tester RCD Test Current 10mA RS Calibration

Megger RCDT320-EN-BS RCD Tester RCD Test Current 1000mA CAT III...

Shop our range of Earth Loop Impedance Testers. Browse our latest Earth Loop Impedance Testers offers. Find out more today at RS.

Earth Loop Impedance Testers | RS

Shop our range of RCD Testers. Browse our latest RCD Testers offers. Find out more today at RS.

RCD Testers | RS

Buy Megger Loop & Rcd Testers. Browse our latest Megger Loop & Rcd Testers offers. Free Next Day Delivery.

Megger Loop & RCD Testers | RS

Buy Megger Loop Testers. Browse our latest Megger Loop Testers offer. Free Next Day Delivery!

Megger Loop Testers | RS

<p>Megger Loop Testers are indispensable tools for ensuring the integrity and safety of electrical systems. These instruments are designed to measure the impedance of a loop, providing crucial information about the condition of the circuit. With their advanced features, Megger Loop Testers offer accurate assessments of loop impedance, fault currents, and prospective short-circuit currents. By utilizing these testers, electricians and professionals can efficiently identify potential issues in wiring, contributing to the overall reliability of electrical installations. Invest in Megger Loop Testers for comprehensive testing and reliable insights into the performance of your electrical circuits.</p>

Buy Megger RCD Testers. Browse our latest Megger RCD Testers offer. Free Next Day Delivery!

Megger RCD Testers | RS

<p>Ensure the safety of your electrical installations with Megger's cutting-edge RCD Testers. These reliable devices offer a comprehensive solution for testing Residual Current Devices, providing accurate measurements to guarantee the integrity of your circuits. Megger RCD Testers are designed to meet the highest standards, offering a seamless blend of advanced technology and user-friendly interfaces. Elevate your electrical testing experience with Megger's RCD Testers – a testament to precision and reliability in ensuring electrical safety.</p>

Megger Loop & RCD Testers

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