Megger
KC50C-KIT Long Test Leads Kelvin Clamp/Probe Reel (50 m)

Megger KC-C Series Long Test Leads – KC50C-KIT & KC100C-KIT

The Megger KC-C Series is the latest generation of long-distance, low-resistance test lead systems engineered for exceptional safety, accuracy, and ease of use. Purpose-built for the Megger DLRO2 low-resistance ohmmeter, each Megger Test Lead Reel combines lightweight construction with rugged IP68 environmental protection, making it ideal for technicians working on tall structures, exposed sites, or extended cable installations. Whether using the KC50C-KIT (50 m) or KC100C-KIT (100 m), this innovative range of Megger Long Test Leads delivers consistent performance even in challenging outdoor environments.

Designed as an upgrade to the original KC Series, the Megger KC-C Series takes advantage of the DLRO2’s dedicated long test lead mode. Because the DLRO2 can accommodate up to 3.2 Ω total resistance at 1 A, Megger has significantly reduced cable weight - enhancing safety when climbing wind turbines or accessing elevated structures. The KC100C reel now weighs only 7.6 kg, nearly half the weight of the previous model, offering safer handling and smoother deployment.

Engineered for Long-Distance Low-Resistance Testing

Both the KC50C-KIT and KC100C-KIT are designed to streamline measurements of lightning protection circuits on wind turbines, aircraft, rail systems, and large industrial structures. Each Megger Test Lead Reel set includes a 3 m short lead, a Kelvin probe, a Kelvin clamp, and fully interchangeable IP68 click-lock connectors. This configuration gives technicians complete flexibility in configuring test setups, even when test points are positioned in difficult or elevated locations.

The system’s versatility is especially beneficial for wind turbine applications, where the orientation of lightning receptors and access points can vary significantly between installations.

KC50E Extension for Up to 200 m Total Length

The optional KC50E 50 m extension reel integrates seamlessly with both standard Megger Long Test Leads sets. Once connected, the system achieves a full 200 m reach without compromising measurement integrity. The extension lead transitions from IP54 when unconnected to IP68 when locked, ensuring complete environmental protection in offshore, high-altitude, or open-air environments. Best practice dictates unwinding the extension reel first, then connecting it to the main reel before continuing deployment.

Megger KC50E Key Features:

• Designed specifically for the Megger DLRO2 long test lead mode
• Lightweight construction greatly improves safety when working at height
• IP68-rated connectors suitable for harsh outdoor conditions
• Interchangeable instrument and test terminations
• Available in 50 m and 100 m lengths within the Megger KC-C Series
• Optional 50 m extension enabling up to 200 m testing range
• Ideal for wind turbine, aircraft, rail and subsea cable inspections
• Operates from 0 °C to +50 °C at <95% RH

What comes with the Megger KC50E?

Each Megger Test Lead Reel KIT is supplied with:

• One 50 m or 100 m cable reel (male connectors)
• One 3 m short test lead
• One Kelvin probe with spring-loaded, gold-plated tips
• One large Kelvin clamp with 35 mm jaw capacity
• Two right-angled shrouded 4 mm DLRO2 terminals

Together, these components provide complete flexibility and easy adaptation to a wide range of low-resistance test environments.

Typical Applications:

• Wind turbine lightning protection resistance measurements
• Aircraft static and lightning protection bonding tests
• Subsea and long-distance cable resistance checks
• Structural bonding and grounding integrity assessments

Across all applications, the Megger KC-C Series provides reliable, repeatable measurements where long-lead performance is essential.

❓ Frequently Asked Questions (FAQ)

Q1: Can these test leads be used with instruments other than the DLRO2?

A. No. The KC-C Series is designed exclusively for the Megger DLRO2.

Q2: Are the connectors weatherproof?

A. Yes. Once locked, the connectors are fully IP68-rated for demanding outdoor use.

Q3: What is the maximum safe working voltage?

A. The leads are rated for <30 V at up to 2 A.

Q4: Can I extend the KC100C to 200 m?

A. Yes. Using the KC50E extension allows a total test length of 200 m.