Defeat the Heat Through Every Move, Add and Change
FlameStopper is a UL-classified, fire-rated wall/floor pass-through built to help data centers stay protected as infrastructure evolves. Designed to support thermal containment and fire-rated wall integrity, it helps maintain critical separation between hot and cold aisles, rooms and fire-rated spaces, even as cables are added, removed or rerouted over time.
From day-one installation to future moves, adds and changes, FlameStopper helps simplify cable pathway updates without compromising protection or triggering costly rework. No tear-outs. No patching. No slowdown.
A Cleaner, Inspection-Ready Alternative to Traditional Firestopping
Built for Moves, Adds & Changes (MACs)
Maintains fire ratings as your facility evolves without tearing out or rebuilding.
Up to 4-Hour Fire & Thermal Rating
UL-classified whether empty, partially filled or fully loaded. Factory-installed intumescent block rapidly expands to fill voids around cables when exposed to heat.
Ditch the Mess
Cleaner alternative to caulks, pillows and bricks. No tear-outs. No rework.
Inspection-Ready
Bright red coating is designed to stand out for easy verification.
Built for the Burn Download Sell Sheet
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Data centers weren’t built to stay static. Yet many firestopping approaches are still designed for a one-and-done installation. This white paper breaks down why traditional methods fall short in modern data centers, and how FlameStopper offers a cleaner, more predictable path forward.
Quick Downloads & Resources
Step-by-step instructions to ensure proper fit and performance.
Discover our portfolio of electrical wiring solutions for any data center space, phase and timeline.
Take the Next Step
Connect with a Legrand representative to start defeating the heat with FlameStopper today.
Explore the full portfolio of electrical wiring solutions for any data center space, stage or timeline.
Take an interactive tour and see where FlameStopper fits within real-world data center environments.
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