Martindale PD430 50V/440V AC Proving Unit

  • Safely and simply proves the operation of voltage indicators and test lamps
  • Essential for implementing effective safe isolation procedures
  • 50V/440V industry leading proving unit for all low & high impedance testers
  • Long battery life time with low battery indicator
  • Optional in-car & mains power supplies available
EAN: 5036162185830 SKU: MARPD430 Category:

This product has been discontinued. You may be interested in:

Martindale PD440SX – 440V AC Proving Unit with 4 ranges and CALCHECK


The Martindale PD430 is a 440V AC proving unit, designed to enable voltage indicators to be fully checked, in compliance with Health & Safety recommendations. Using a voltage indicator without first proving it is working correctly could be fatal.

The PD430 features a low 50V check as well as a high 440V check and is compatible with the Martindale VI13800 & the Martindale VI13700. This model is suitable for use with any two pole voltage tester, with LED or LCD indication.

The PD430 can also check Drummond and other filament test lamps as its output is sufficient to illuminate the bulb.

There is now a facility to power the PD430 proving devices with the addition of a 12V DC power connection point. The units can be powered by either alkaline batteries or a 12V power supply. There are two power supply units available for the proving devices, the PSUPD230 and the PSUHPAT12. The PSUPD230 can be connected to mains power and the PSUHPAT12 is a 12v power supply suitable for use in a car/van cigarette lighter.



Maximum Voltage Output240V DC440V AC440V AC
LED Voltage Thresholds240V50V, 440V440V
High Voltage LED
Low Battery LED
High/Low Z Compatible
Suitable forMultimeters & voltage testers (>120kΩ)Multimeters, voltage testers & Drummond test lampsMultimeters, voltage testers & Drummond test lamps





This product has been discontinued.

Out of stock