Fire Testing Systems for Cables
Fire Safety Starts at the Core – Reliable Cable Testing Solutions by NETZSCH
NETZSCH fire testing solutions support key international standards such as EN 50399, IEC 60332-3-10, EN 60695 or ISO 4589‑2 to assess for example flame spread, heat release, flaming droplets and ignition resistance of cable insulation and sheathing materials. These tests are essential for manufacturers, testing laboratories and certification bodies to ensure compliance and product safety.
We can also provide further variants and individual fire testing instruments according to customer requirements.
Our Product Portfolio
Explore the range of NETZSCH Fire Testing Instruments for Cables

Understanding Fire Behavior: A Four-Part Webinar Series

The Master of Fire
"We couldn’t fathom working without the two NETZSCH fire testing systems KBT and SBI. Since 2005, they have served for reliable tests on the behavior of building components like cables and insulated lines in the event of fire in accordance with the European test procedures."
Materialprüfanstalt Dresden (MPA, Dresden Materials Testing Institute), Germany
Frequently Asked Questions
Your Benefits
> 30
> 1000
50
What Makes NETZSCH Fire Testing Instruments Unique?
- Standards compliance designed for UL 94, ISO 4589‑2 (LOI) and EN 50399 (KBT) — allowing for accurate and compliant results
- High repeatability and precision through automated ignition control, digital data acquisition and stable testing equipment
- Reliable analysis of key parameters such as flame spread, oxygen index, heat release rate, smoke production and dripping particles
- Intuitive operation via user-friendly software and touch-panel interfaces
- Ideal for quality control, research, development and certification in the cable and electrical industries
- Proven Excellence: Decades of experience in fire testing and a strong reputation on the market underline the reliability and advanced capabilities of our fire testing instruments.
- Unlimited Warranty: To emphasize the long-term availability of our services, we offer an unlimited warranty, e.g. for the KBT 916 instrument series.
Long Instrument Life
Always There for You
Proven Excellence in Service
Applications for the Cable Industry
NETZSCH fire testing instruments are used by cable manufacturers, testing laboratories, and certification bodies to assess the fire behavior of cable components. Key applications include:
- Flame propagation testing:
Evaluate how flames spread along vertically mounted cable bundles — crucial for classifying cables under the Construction Products Regulation (CPR) using EN 50399. - Heat release and smoke production analysis:
Quantify heat release rate (HRR), total heat release (THR), smoke production rate (SPR), total smoke production (TSP), FIGRA, SMOGRA and smoke development to assess fire load and visibility risks during a fire. - Dripping particles and afterflame time:
Identify whether burning droplets form and how long materials continue to burn after ignition (tested via UL 94 and KBT) — important for preventing secondary ignition. - Oxygen index determination:
Measure the minimum oxygen concentration required to support combustion (LOI test according to ISO 4589‑2) — a key screening method for flame-retardant cable compounds. - Material screening and compound development:
Support R&D by comparing flame-retardant formulations, fillers and additives for improved fire safety. - Certification and regulatory compliance:
Ensure that cable products meet international fire safety requirements for installation in buildings, tunnels, industrial plants and public infrastructure.

Cables and lines - Invisible lifelines of our modern world
They power our homes, connect our devices and keep critical infrastructure running — all while working quietly and reliably in the background.
To ensure the highest level of safety and fire protection, it is crucial to understand how cable materials behave in a fire. Only through precise testing and reliable data can manufacturers design cables that perform well and protect lives, property and the systems we depend on daily.
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