Megger DLRO100EB

Product Overview
The Megger DLRO100EB is a high-current digital low-resistance ohmmeter capable of delivering up to 100 A for demanding field and industrial applications. Designed for flexibility and safety, this unit can operate on battery or mains power, and is equipped with Kelvin four-terminal measurement to ensure accurate, repeatable readings. With a robust CAT IV 600V / 500VDC safety rating, smooth DC output, and intuitive rotary switch for test selection, it’s built for professional environments such as substations, switchgear testing, and heavy-duty equipment verification.

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This product belongs to our extensive line of Micro-Ohmmeters & DLROs for accurate resistance testing in power distribution and utility industries.

Key Features

• High Test Current – Selectable 10 A, 50 A, or 100 A via rotary switch

• Battery and Line Power Operation – Ensures testing flexibility in any environment

• Kelvin Four-Terminal Measurement – Reduces errors from lead and contact resistance

• Smooth DC Output – Clean measurement signals on C1 and C2 terminals

• High Noise Immunity – Stable readings on P1 and P2 terminals

• Large Display – Easy-to-read results in all light conditions

• IP54 Rated – Resistant to dust and rain for field durability

• Simple Data Management – View, download, or delete test results with ease

• DualGround Capability – Enhanced safety during live substation testing

• Safety Rated – CAT IV 600VAC / 500VDC on all terminals

Technical Specifications

What’s in the Box

• Safety Warning Sheet

• Product Registration

• Certificate of Test

• Quick Start Guide

• Factory Calibration Certificate (non-NIST)

• User Guide (on CD)

• Accessories Leaflet

⚠️ Test leads not included – please order separately

Ideal For

• High-voltage substation testing

• Transformer and circuit breaker joint resistance verification

• Ground bonding tests

• Manufacturing quality control

• Utility and power system commissioning

Looking for a lighter-duty DLRO with 10 A capability? See the  Megger DLRO100HB  for compact, battery-powered options.