Megger MPU690 Proving Unit

Megger MPU690 Proving Unit — Verify Your Voltage Tester Before Use

The Megger MPU690 is a portable, battery-operated proving unit that generates known AC voltages so electricians can confirm their voltage testers and indicators are functioning correctly before and after use — a key part of safe isolation. Producing outputs from 50 V up to 690 V, it verifies detectors and two-pole testers across the full low-voltage range in a compact, pocket-sized unit.

Key Features

• Five output voltages — 50 V, 100 V, 230 V, 400 V and 690 V (50 Hz AC) to prove testers across the LV range.
• Safe isolation support — confirms a voltage tester works before and after proving a circuit is dead.
• Clear LED indication — five output-voltage LEDs plus a power LED.
• Magnetic base — attaches to metal surfaces for hands-free use.
• Auto on/off — conserves battery life.
• Battery powered — runs on 6 × AA cells; 10 W maximum output.
• Pocket-sized — 130 × 68 × 48 mm, just 346 g.

Applications

The MPU690 is ideal for electricians and maintenance engineers who need to prove voltage indicators and two-pole testers as part of a safe-isolation procedure — on installations up to 690 V. (Not recommended for use with multimeters.)

What’s in the Box

• Megger MPU690 proving unit
• 6 × AA batteries
• User guide

Why Buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is your trusted supplier of genuine Megger test and measurement equipment in the UAE. We offer competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. Contact us on WhatsApp for the latest price and availability.

Download the Megger MPU690 datasheet (PDF).