1001561

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Megger MPU690 Proving Unit (Part No. 1001‑561)

The Megger MPU690 is a portable, battery-powered proving unit that simulates AC mains voltage to verify the correct operation of 2‑pole voltage testers. It outputs five stepped voltage levels (690 → 400 → 230 → 100 → 50 V AC) automatically when test probes are inserted. LEDs indicate output level and battery status. It features a rugged case with a magnetic base and high output power for modern voltage testers including indicator lamps

Stock Code: 1001561
Out of stock

Product Features

  • Five-step output voltage

    50, 100, 230, 400, 690 V AC

  • Automatic operation

    upon probe insertion

  • High output power (≈10 W)

    suitable for test lamps

  • Rugged IP‑rated housing

    travel-friendly

Box Content
  • 1 x Megger MPU690 proving unit
  • 1 x Magnetic base integrated
  • 1 x (Optionally) protective pouch or case may be included
  • 1 x 6 × AA batteries installed or provided

Frequently Asked Questions

  • Q: What voltage levels does it generate?

    A: It outputs five stepped nominal voltages: 690, 400, 230, 100, and 50 V AC

  • Q: Does it have an on/off switch?

    A: No—it's totally automatic: it powers on when probes are inserted and switches off when removed

  • Q: What kind of batteries does it use?

    A: Six AA (LR06) alkaline batteries—designed for long life

  • Q: Is it safe to use around test lamps?

    A: Yes—the 10 W output and terminal spacing accommodate tester lamps

  • Q: Can it be used outdoors?

    A: It's rugged with magnetic base, suitable for harsh environments; recommended for indoor use within spec range .

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