Metrohm E4550 HV Phase Comparator

HVI Limited

HVI approved distributor and service centre.

The E4550 High Voltage Phase Comparator is a hand held, double pole device used to determine the phase relationship between two energised conductors.

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Usually Stock or Short Lead Time

£ 799.00 rrp £ 850.00

save 6%

(£ 958.80 inc VAT.)

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The Metrohm E4550 11/33kV Phase Comparator has been designed for single person use both indoors and outdoors. Once assembled the unit should be tested using  a known high voltage source. When applied to the two high voltage sources under test the units will give clear indication of an “out of phase” condition. All models are signal driven and do not require arming or the use of batteries.


Simple to operate.
Detachable handles for easy transport.
No batteries required.
Separate Proving unit available.
Designed to VDE-0681 Part 5.

Metrohm E4550 Specifications:

  • Range: 11/33kV.
  • Indication: Analogue.
  • Resistor Chain: 9MΩ.
  • Threshold: 3.3kV/33kV.
  • Tolerance: ±5%.
  • Response Time: Less than one second
  • Length: 770mm.
  • Metrohm E4550 Warranty: 1 year.

Includes: HV Phase Comparator, 2 off Handles, Polymer Cleaning Kit, Instruction Manual, Carry Satchel.

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Metrohm E4550 HV Phase Comparator