Description
Overview:
The Martindale Non-Trip Earth Loop Impedance Tester is a robust, plug-in instrument for verifying the safety of 230V, 50 Hz electrical installations. Built with a durable, impact-resistant housing suited to site and workshop use, it performs earth loop impedance checks without tripping RCDs, helping you diagnose issues while keeping circuits live. Designed for routine socket testing and wiring verification, it detects 36 different fault conditions and confirms correct terminations. It also carries out basic voltage checks to support safe isolation and troubleshooting. Compliant with BS EN61010-1:1993, it offers reliable protection and repeatable results for electricians, maintenance teams, facility managers, and competent DIY users working on residential, commercial, and light industrial systems across standard UK mains outlets.
Key Features:
- Non-trip earth loop testing to avoid nuisance tripping of RCD/RCBO devices
- Detects 36 fault conditions for thorough wiring diagnostics
- Confirms correct wiring and identifies open terminations
- Checks supply presence and voltage on 230V, 50 Hz circuits
- Complies with BS EN61010-1:1993 for user safety and test integrity
- Durable, impact-resistant construction for everyday site use
- Simple plug-in operation with clear status indication
- Compact and portable for toolbag or van storage
- Suitable for residential, commercial, and light industrial environments
- Helps verify loop impedance is within acceptable limits for protective devices
Typical Applications:
Periodic socket checks, fault-finding on ring and radial final circuits, pre-commissioning tests after new installations or alterations, verification during planned maintenance, and quick safety checks following remedial work. Useful for diagnosing wiring issues such as incorrect terminations or polarity problems, and for confirming that earth loop impedance values support effective disconnection times on standard UK 230V systems without interrupting service.
Also known as:
Socket wiring analyser, mains outlet verifier, RCD-safe loop checker, plug-in installation checker, polarity and earth continuity indicator, wiring integrity tester, mains safety tester, outlet diagnostic tool, supply verification tester, electrical installation verifier.
Product Specifications
| L&S Part No. | 993 150 |
|---|---|
| Manufacturer | Martindale |
| Unit of Sale | 1 |
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