Skip to Main Content
  • Instrumart
Instrumart logo
  • Products
  • Brands
  • Applications
  • Lab
  • Blog
  • Account
  • Email Us
  • 1-800-884-4967
  • What can we help you find?

    Can’t find what you’re looking for? Contact one of our engineers today. We’re open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
    • 1-800-884-4967
    • Email Us
    • Live Chat
  1. Clamp Meters

Megger MPU690 Proving Unit

A portable battery operated voltage source that verifies the correct functioning of voltage testers.

Megger MPU690 Proving Unit
Megger MPU690 Proving Unit
$150.00 Found a better price? Let us match.

View Company Reviewsby Trustpilot
Part Number
  • 1001-561
Manufactured
  • By Megger
Includes
  • FREE Ground Shipping on orders of $1,000 or more
  • FREE Lifetime Tech Support
Availability
  • Call for availability
Product Manual Product Specs
Questions?
Call 1-800-884-4967 or Email Us.
Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
Trustpilot

Overview

Features

  • 5 stepped nominal output voltages
  • Automatic operation
  • High output power suitable for test lamps
  • Extended battery life
  • Operating temperature range of 14° to 104°F
  • Magnetic Base
  • Rugged Case

What's in the Box

  • 6 AA LR06 alkaline batteries
  • Rugged case with magnetic base

Description

The Megger MPU690 proving unit provides an alternative portable battery operated voltage source that verifies the correct functioning of a 2 pole voltage tester. It safely generates a 50Hz output voltage which simulates the tester's AC mains supply.

The MPU690 automatically powers on when voltage tester probes are inserted into the output terminals, generating 690V then slowly ramping down to 400V, 230V, 100V, then 50V after which the unit shuts down. The individual voltage steps are indicated by an LED with a power indicator.

The generous output power rating and the spacing of the output terminals allows the MPU690 to verify the correct operation of voltage indicators that utilize a lamp for operation. Although the unit has a high output the unit has exceptionally good battery life.

Documents

Spec Sheets

  • Megger MPU690 Proving Unit Datasheet PDF (176 KB)

Manuals

  • Megger MPU690 Proving Unit Manual PDF (56 KB)

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart

Recently Viewed

Megger MPU690 Proving Unit
Megger MPU690 Proving Unit
United States Canada Mexico
Shop
Products
Brands
Applications
Support
Customer Service
Ask a Question
Live Chat
Track Order
Fraud Prevention
Financing
Our Company
Blog
About Us
Contact Us
Jobs
Travel Information
Our Team
Privacy Policy
Terms and Conditions of Sale
Terms and Conditions of Purchase
Accessibility Statement
Connect
1-800-884-4967
sales@instrumart.com
Instrumart
35 Green Mountain Dr
S Burlington, VT 05403 US
Mo-Th 8:00am to 5:30pm ET
Fr 8:00am to 5:00pm ET
Join Us on Facebook
Follow Us on X

Instrumart is a member of a family of industrial stores

Instrumart Compressor World Pump World BioPharm World Filtration World Motion World Qualitrol Engineered Solutions Wholesale Air Pipe
© Instrumart 2025

Family of Industrial Stores

Welcome to our family of stores, your go-to source for a wide selection of commercial and industrial products in the flow control and automation sectors. Each store features a curated range of specialized industrial solutions, with many items designed to complement each other, ensuring you can find everything you need for your specific application. Explore the stores below to discover our extensive product offerings for your business needs.

  • Instrumart

    Shop Industrial and Laboratory Instruments.

    Shop Now!
  • Compressor World

    Shop Compressed Air Equipment.

    Shop Now!
  • Pump World

    Shop Industrial, Water, and Waste Water Pumps.

    Shop Now!
  • BioPharm World

    Shop Sanitary Process Solutions and Products.

    Shop Now!
  • Filtration World

    Shop Industrial Filters.

    Shop Now!
  • Motion World

    Shop Motion Control and Process Automation Systems.

    Shop Now!
  • Qualitrol

    Shop Remanufactured or Repair Automation Products.

    Shop Now!
  • Engineered Solutions

    Shop Custom Engineered and Manufactured Systems.

    Shop Now!
  • Wholesale Air Pipe

    Shop Air Piping.

    Shop Now!