Precision Protection for Critical Infrastructure.

Cable trays are the lifelines of modern infrastructure—housing power, data, and control systems across industrial, commercial, and utility environments. But they’re also vulnerable to overheating, electrical faults, and fire hazards. Dust accumulation, mechanical abrasion, and restricted access make traditional fire detection unreliable and difficult to maintain.

ProReact Linear Heat Detection (LHD) offers a proven solution. Engineered for continuous monitoring and early warning, our cable-based detection system is ideal for protecting cable trays—whether single-tier, multi-tier, or densely packed.

UL Approved System for Cable Trays

EN Approved System for Cable Trays

ProReact Fixed Activation

ProReact Fixed Activation

Preset alarm temps. Tough cable. Reliable fire safety.

  • UL and FM approved
  • CE, RoHS, and UKCA certified
  • PVC, Nylon or Stainless Steel Braided
ProReact Fixed Activation (EN)

ProReact Fixed Activation (EN)

Preset alarm temps. Tough cable. Reliable fire safety.

  • EN and FM approved
  • CE, RoHS, and UKCA certified
  • PVC, Nylon or Stainless Steel Braided
  • Hidden Risks
    Electrical faults and overheating often occur deep within trays, out of sight and reach.
  • Environmental Stress
    Dust, humidity, and vibration can interfere with conventional sensors.
  • Complex Layouts
    Multi-tier trays and tight spaces complicate installation and maintenance.
  • False Alarms
    Spot detectors are prone to nuisance alarms in dirty or damp environments.

How ProReact LHD Solves Challenges in Cable Trays

  • Continuous Coverage
    ProReact cables run the full length of the tray, detecting heat anywhere along their path.
  • Flexible Installation
    Use V-Clips, L-Clips, or beam clips to mount cables above or below trays—even in multi-tier configurations.
  • Resilient Design
    With coatings like nylon, PVC, and stainless-steel braid, our cables resist abrasion, moisture, and harsh chemicals
  • Low Maintenance
    Designed as a “fit and forget” solution, ProReact LHD minimizes upkeep and maximizes reliability
  • Smart Activation Options
    • Fixed Temperature (Digital): Triggers at a set temperature—ideal for high-risk zones.
    • Programmable Temperature (Analogue): Offers resettable detection and rate-of-rise sensitivity for dynamic environments.

(PDF, 2.05 MB)

Download file - Download the Cable Tray Installation Guide
  • For trays up to 0.6m wide: Use a single run of LHD cable centred above the tray.
  • For wider trays: Use two runs spaced evenly.
  • Cables can be laid directly over other cables or suspended just below the tray using beam clips.
  • Protective silicone sleeves are recommended to prevent abrasion from tight zip ties.

ProReact LHD systems meet global standards, including EN54-22, UL, VdS, CE, and RoHS, ensuring compliance and peace of mind across sectors.

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  • UL listed - grey
  • FM approved - grey
  • Made in Britain - grey
  • VDS - grey
  • ISO 9001 - grey