Protectowire: The Global Standard in Linear Heat Detection Since 1938

In the specialized field of fire protection, reliability isn't just a goal, it’s a requirement. Protectowire is the pioneer and leading innovator of linear heat detection technologies. Having invented this specialized technology nearly a century ago, Protectowire continues to provide the expertise and the largest linear heat detection portfolio in the world. Engineered to survive where traditional spot detectors fail, Protectowire systems offer reliable fire detection for virtually any industrial or commercial application..

Your Essential Regional Partner for Protectowire

Crown Supply is your local stocking distributor for Protectowire, bridging the gap between world-class fire safety engineering and your project site. We understand that special hazard applications require precise timing and immediate availability to meet strict project deadlines. That is why Protectowire’ s dependable detection solutions are available for immediate pickup or job-site delivery through Crown Supply.

Engineered for Special Hazards and Extreme Environments

Protectowire distinguishes itself with unparalleled versatility. Their products are designed specifically for the challenges faced by electrical contractors and fire alarm technicians in the field:

Ease of Installation

Engineered for a seamless setup, Protectowire’ s linear heat detection cable can be installed in areas with restricted access or complex geometries, saving significant labor hours compared to traditional systems.

Durability in Extreme Conditions

Built for extreme environments, these systems are resistant to dust, moisture, and temperature fluctuations, ensuring long-term performance in tunnels, cable trays, and industrial warehouses.

Simplified Maintenance

Protectowire offers detection systems that are easily maintained and serviced, reducing lifetime costs for the end-user and simplifying the service contract for the contractor.

Special Hazard Expertise

From power distribution to manufacturing, Protectowire’s team possesses the knowledge required to meet the increasing detection challenges of modern commercial industries.

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Why Contractors Source Protectowire Through Crown Supply

When you are searching for "Protectowire parts near me," you need an authorized Protectowire distributor that understands the technical nuances of fire safety codes. Crown Supply provides the professional-grade support that keeps your projects compliant and profitable.

Technical Submittal Support: Our team provides the expert guidance and technical documentation required for complex fire alarm submittals and AHJ (Authority Having Jurisdiction) approvals.

Local Inventory: We maintain local stock of commercial electrical supplies and specialized fire detection hardware, ensuring you aren't waiting on factory lead times while your crew is on-site.

Competitive Pricing: Crown Supply provides competitive pricing and technical precision that allow contractors to bid confidently on high-stakes special hazard projects..

Positioned for the Future

Protectowire remains dedicated to developing the next generation of linear heat detection for the special hazards industry. By combining their legacy of innovation with Crown Supply’s regional availability and logistical strength, New England contractors have access to the most reliable fire detection solutions on the market.


Protect your next project with the expertise of the industry leader. Contact Crown Supply today for Protectowire inventory, technical submittals, or immediate job-site delivery.