Megger PAM420 Phase Angle Meter


Megger approved distributor and service centre.

Suitable for testing protective relays, make comparative test in electrical substations, and verifying the phase angle deviation on power transformers.

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£ 3,276.00 rrp £ 3,640.00

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(£ 3,931.20 inc VAT.)

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The Megger PAM420, provides phase angle measuring functionality identical to that of the PAM410, but adds facilities for two-channel voltage, current and frequency measurement.Megger PAM 420 display

It also has a high-accuracy timing function that can be triggered by voltage signals or volt-free contacts, and can measure times up to 999.999 s with a resolution of 1 ms. The PAM420 has a built-in rechargeable battery, allowing it to be used in almost any location.

  • Direct digital reading down to tenths of a degree (0.1°).
  • Timer with high accuracy for contact or voltage trig.
  • Phase angle calculated from of any combination of two power signals.
  • Designed for use in substation or industrial environments.
  • Switchable inputs between current and voltage.
  • Current – Inputs I1 and I2: 0 – 25 A AC.
  • Voltage – Inputs U1 and U2: 0 – 500 V AC true RMS.
  • Phase angle Range: 0 – 359.9°(2–500 V and 0.15–25 A).
  • Type of phase angle measurement: Current-current, voltage-voltage and current-voltage.
  • Waveform: Sinusoidal.
  • Resolution: 0.1°.
  • Frequency Range: 15 – 75 Hz (in voltage component only).
  • Timer Measurement category: CAT II 250 V.
  • Timer: Range 0-999.999 s.
  • Display: Alpha numerical LC display with backlighter.
  • Power supply: Rechargeable batteries.
  • Instrument Dimensions: 260 x 140 x 55 mm (except handle) (10.2” x 5.5” x 2.2”).
  • Weight: 3.5 kg (7.7 lbs): with accessories and transport case.
  • Megger PAM420 Warranty: 1 year.


Includes: Test lead set, mains adapter (battery charger) PAM 420 and transport case.

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Megger PAM420 Phase Angle Meter