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Single Circuit Heat Detector

Single Circuit Heat Detector
by:admin October 1, 2025 0 Comments

Single Circuit Heat Detector with normally open contacts provides an effective and durable solution. Unlike conventional detectors, this model features sealed pigtail leads that pass through a secure seal plate, offering enhanced protection against moisture, condensation, and corrosive damage.

As a result, it is ideal for areas like garbage compactors, mechanical rooms, or any space where environmental factors might compromise traditional terminal wiring.


How This Heat Detector Works

This device connects to a fire alarm system as an initiating device on a single circuit. Under normal conditions, its internal contacts remain open. However, when the surrounding temperature:

  • Rises rapidly (rate-of-rise detection), or
  • Reaches a predefined fixed threshold,

…the detector’s contacts close, completing the circuit and sending a signal to the fire alarm control panel.

Consequently, this enables fast response to potential fire hazards, even in challenging environments.


Key Features and Benefits

🔌 Single Circuit with Normally Open Contacts

First and foremost, the single circuit configuration simplifies wiring while ensuring reliable performance. The normally open contacts only close under alarm conditions, reducing the risk of false alarms.

🔧 Pigtail Leads Through a Protective Seal Plate

Instead of using standard terminals, this detector includes pigtail leads that pass through a sealed plate. Therefore, it offers greater protection from:

  • Humidity
  • Condensation
  • Corrosive elements

This makes it a strong choice for industrial, commercial, and high-moisture areas.

⚙️ Simple and Secure Installation

The detector is designed to mount easily onto standard cast exterior back boxes. As a result, installation is quick and secure, even in exposed or rugged environments.

📍 Optional Addressing Capability

When integrated with an addressing module, the detector can identify specific rooms or zones. For instance, it can be configured to report alarms from an electrical room, trash chute, or maintenance area, allowing faster response and pinpointed alerts.

🎨 Two Finish Options to Match Any Setting

To suit different applications, this heat detector is available in both silver and white finishes. Whether installed indoors or outdoors, it blends seamlessly with surrounding fixtures.


Where to Install This Detector

Thanks to its robust construction and sealed wiring design, this single circuit heat detector is ideal for use in:

  • Garbage or waste compactors
  • Parking garages and utility tunnels
  • Mechanical or electrical rooms
  • Commercial kitchens
  • Industrial plants
  • Outdoor enclosures
  • Storage areas with fluctuating temperatures

Why Choose This Detector?

Choosing this detector means choosing simplicity, durability, and performance. Unlike standard heat detectors, it offers:

  • Improved environmental resistance
  • Flexible installation options
  • Reduced maintenance requirements

Therefore, it’s an excellent choice for building owners, facility managers, and installers who need reliable fire detection in difficult environments.

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