In many industrial facilities, fire risk does not always start from visible smoke or open flame. It often begins with abnormal temperature rise at cable joints, electrical equipment, transformer areas, conveyor systems, hydraulic stations or oil pipe galleries.
For these high-risk points, a standard smoke detector may not be the best solution. A more direct method is to monitor the temperature at the risk point and trigger an alarm when the temperature reaches a preset level.
The ANWETECH AT-EH03 Rod Type Temperature Detector is designed for this type of industrial fire detection application. It is an explosion-proof fixed temperature detector that provides reliable temperature alarm output for hazardous and harsh environments. According to the product specification, the detector supports flameproof explosion-proof design, Ex d IIC T6, and IP67 protection grade.
An explosion-proof temperature detector is a fire detection device designed for areas where flammable gas, vapor, dust, oil mist or other hazardous substances may exist.
In these environments, ordinary electrical equipment may create ignition risks if it is not properly designed. Therefore, fire detection devices installed in hazardous areas should use suitable explosion-proof construction.
The ANWETECH AT-EH03 is a rod type fixed temperature detector. It works as a temperature alarm device. When the ambient temperature reaches the preset alarm value, the detector outputs an alarm signal.
This makes it suitable for industrial fire alarm systems where temperature monitoring is required at specific risk points.
One of the key advantages of the AT-EH03 is its explosion-proof design.
The product specification lists the explosion-proof grade as:
Ex d IIC T6
This makes the detector suitable for hazardous industrial environments where explosion-proof fire detection devices are required.
For marketing and engineering communication, this feature can be explained as:
Explosion-proof design for hazardous industrial environments where ordinary heat detectors may not be suitable.
This is especially important for industries such as:
Oil and gas facilities
Chemical plants
Power plants
Petrochemical areas
Cable tunnels
Oil pipe galleries
Industrial production workshops
Storage and processing areas with fire risk
The AT-EH03 is not a rate-of-rise heat detector. It does not depend on how quickly the temperature increases.
Instead, it operates based on a fixed temperature point.
When the surrounding temperature reaches the preset alarm value, the detector immediately activates and sends an alarm signal.
This working logic is simple and reliable:
Temperature reaches preset value → detector activates → alarm signal output
This is very useful in industrial environments because short-term temperature fluctuation is common. A fixed-temperature detector helps reduce unwanted alarms caused by temporary temperature changes.
According to the product information, the detector acts immediately when the surrounding temperature reaches the set value.
This feature is important for fire risk points such as cable joints, electrical equipment and conveyor systems, where abnormal heating may indicate early fire risk.
Website expression:
Fast response when ambient temperature reaches the preset alarm point.
Industrial sites are often dusty, humid, oily or exposed to vibration and harsh conditions.
The AT-EH03 provides IP67 protection, which makes it suitable for demanding installation environments. The product information also mentions sealed design, seismic resistance, corrosion resistance and anti-disassembly features.
This allows the detector to be used in locations such as:
Cable trenches
Cable shafts
Belt conveyors
Hydraulic stations
Oil pipe galleries
Cooling towers
Dust collectors
Steel plants
Warehouses
Power distribution rooms
Website expression:
IP67 protection for dustproof and waterproof installation in harsh industrial areas.
Different industrial applications require different alarm temperature settings.
For example, a cable tunnel may require a lower alarm temperature, while high-temperature industrial equipment may require a higher setting.
The AT-EH03 series provides multiple alarm temperature options:
| Alarm Temperature | Fahrenheit |
|---|---|
| 60°C | 135°F |
| 85°C | 185°F |
| 90°C | 194°F |
| 105°C | 221°F |
| 125°C | 257°F |
| 140°C | 284°F |
| 162°C | 325°F |
| 232°C | 450°F |
This makes the detector more flexible for different industrial fire detection projects.
The AT-EH03 can be used as a normally open temperature switch.
When the preset temperature is reached, the contact changes status and outputs an alarm signal. This allows the detector to be connected to:
Fire alarm control panels
Input modules
Alarm monitoring systems
Release/control systems
Industrial control systems
For engineering customers, this is an important selling point because they care about system compatibility.
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Dry contact output for easy integration with fire alarm and control systems.
The ANWETECH AT-EH03 explosion-proof temperature detector is suitable for many industrial fire risk points, including:
Cable joints
Cable trays
Cable tunnels
Cable trenches
Switchgear rooms
Transformer rooms
Substations
Motor control centers
Resistor banks
Belt conveyors
Hydraulic stations
Oil pipe galleries
Steel plants
Rolling mills
Warehouses
Dust collectors
Elevated parking garages
These applications match the product’s positioning as an industrial fixed-temperature detector for hazardous and harsh environments.
The AT-EH03 is not just a standard heat detector. It is designed for industrial environments where reliability, durability and explosion-proof performance are important.
Key advantages include:
Fixed-temperature alarm operation
Fast response at preset alarm temperature
Explosion-proof design with Ex d IIC T6 rating
IP67 protection for harsh environments
Self-resetting design without replacement
Multiple alarm temperature options
Dry contact output for easy system integration
Sealed, corrosion-resistant and vibration-resistant structure
