The FirePro Plus Switch Box Insert is the quick, cost-effective way to protect electrical switch and socket boxes in fire and acoustic rated walls. Available in single and double socket sizes, these pre-formed inserts fit securely inside the box to maintain acoustic performance in normal conditions and expand in the event of a fire, sealing gaps to prevent fire spread.
Manufactured from high-quality intumescent material, these inserts are tested to BS 476: Part 20 & 22:1987 for both integrity and insulation, providing up to 2 hours of fire protection. Installation takes just seconds, with no adhesives, mess, or assembly required — the simple mechanical fit ensures they stay in place even when sockets are replaced or adjusted.
Key Features:
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Fire Protection: Up to 2 hours, tested to BS 476: Part 20 & 22:1987.
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Acoustic Seal: Maintains wall soundproofing performance.
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Fast Fit: Installs in seconds without adhesives or tools.
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Secure Fit: Won’t dislodge when sockets are changed.
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Energy Efficiency: Improves air tightness to reduce heat loss.
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Variants: Available for single or double socket boxes.
Variants:
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Single Socket – Product Code: SBXINSRT-S
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Double Socket – Product Code: SBXINSRT-D