Drummond MTL20PD-S Test Lamp and Proving Device
Professional Safe Isolation Kit for Electricians
The Martindale MTL20PD-S Test Lamp and Proving Device Kit is designed for electricians, electrical contractors and maintenance engineers carrying out safe isolation procedures, voltage testing and fault finding. Combining the MTL20/B test lamp with the Martindale PD440S proving unit, this kit provides a complete solution for proving dead in accordance with HSE guidance and industry best practice.
The MTL20/B offers clear voltage indication from 50V to 500V AC/DC and is compliant with GS38, BS EN 61243-3 and BS EN 61010 requirements. Supplied in a protective carry case, the kit allows electricians to verify both the tester and the circuit before and after testing, helping improve safety and compliance during electrical work.
Eliminate Phantom Voltages with Confidence
A key feature of the MTL20/B is its twin low impedance test buttons, which allow the tester to draw a higher current and eliminate phantom or ghost voltages that can lead to misleading readings. To prevent accidental operation, both buttons must be pressed simultaneously. This makes the MTL20PD-S particularly valuable for safe isolation testing, fault diagnosis and electrical maintenance where accuracy is critical.
Four distinctive LED voltage indication bands with 360° visibility provide clear identification of voltages above 50V, 120V, 230V and 400V AC/DC, helping electricians quickly distinguish between common supply voltages including 110V, 230V and three-phase systems.
Why Choose the MTL20PD-S?
The MTL20PD-S combines a professional low impedance voltage indicator, proving unit and safety accessories in one convenient kit. With phantom voltage suppression, GS38 compliant probes and clear LED voltage indication, it provides electricians with a reliable solution for safe isolation and electrical testing.
How does the MTL20PD-S improve safe isolation testing?
The twin low impedance test buttons eliminate phantom voltages while the included PD440S proving unit allows users to verify tester operation before and after testing, helping ensure safe and accurate circuit verification.
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