PD440SRDX – 440V AC/DC Proving Unit with 4 ranges & CALCHECK

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The PD440SRDX is fast and easy to use, instantly supplying the full test voltage for both high and low-impedance voltage indicators, test lamps and meters. It comes complete with an over-moulded low-profile case and a magnetic hanger.

The PD440SRDX has a unique CALCHECK feature, making it easy to verify the insulation and low resistance ranges on 18th Edition multifunction testers wherever you are working.

Ideal for proving indicators and measurement devices up to 440V AC or DC and to check the operation of 18th Edition installation testers.

Specification	Value
Output voltage	440V, 230V, 120V or 50V nominal
Output frequency	DC or 50Hz nominal
Insulation test resistance	0.5MΩ (max test voltage 1kV); 1.0MΩ (max test voltage 1kV)
Continuity test resistance	0.5Ω (max test current 200mA); 1.0Ω (max test current 200mA)
Pollution Degree	2
Power	6 × 1.5V, AA alkaline batteries (IEC LR6, NEDA 15A)
Dimensions	150 × 80 × 35mm
Weight	355g
Warranty	2 Years