Martindale PD430 Voltage Indicator Proving Unit 50 V, 440 V

  • RS Stock No. 740-1475
  • Mfr. Part No. PD430
  • Manufacturer Martindale
Technical data sheets
Legislation and Compliance
RoHS Status: Not Applicable
COO (Country of Origin): PH
Product Details

MARTINDALE PD430 and PD440 Proving Unit

Using a voltage indicator without first proving it is working correctly has proved fatal. The Martindale PD430 proving unit features a low 50V check as well as a high 440Vac, the PD440 is a 440Vac proving unit, designed to enable voltage indicators to be fully checked, in compliance with Health & Safety recommendations

Operating Temperature: -10°C to +40°C at max 70% RH
Battery: 6 x LR6 / MN1500 1.5V alkaline batteries or equivalent
Dimensions: 143 x 84 x 50mm
Weight: 400g approx including battery


Compatible with the Martindale VI13700G & the new Martindale VI13700/2.

Martindale Proving Units

The Martindale proving unit has an output voltage rating of 50V for the first level and 440VAC for the second level. The units can be powered by either alkaline batteries or a 12V power supply. There are two power supply units for the proving devices such as PSUPD230 and 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. This model is suitable for use with any two-pole voltage tester, with LED or LCD indication. It is compatible with VI13700G and the VI13700/2.

Features and Benefits

• Safely and simply proves the operation of voltage indicators and test lamps
• Long battery life time with low battery indicator
• Essential for implementing effective safe isolation procedures
• Optional in-car and mains power supplies available
• Industry leading proving unit for all low and high impedance testers
• Battery of6xLR6 / MN1500 1.5V alkaline batteries or equivalent
• Operating temperature ranges between -10°C and 40°C


Digital multimeters
• Clamp meters
• Electrical testers

Mains Voltage Indicators - Contact

Attribute Value
Output Voltage 50 V, 440 V
Battery Type AA
Power Source Battery
Dimensions 143 x 84 x 50mm
Weight 400g
Height 50mm
Length 143mm
Maximum Operating Temperature +40°C
Minimum Operating Temperature -10°C
Model Number p PD430
Width 84mm
Discontinued product