ANWETECH AT-H205 4-Wire Heat Detector with Relay Output

Product Description

The ANWETECH H205 is a 4-wire heat detector designed to detect high temperature conditions in fire alarm systems. It uses a high-precision heat sensor to respond when the ambient temperature reaches the alarm threshold, making it suitable for areas where heat detection is more appropriate than smoke detection.

Built with advanced SMT technology and a durable anti-dust structure, the H205 provides strong environmental adaptability and resistance to electromagnetic interference. Its ceiling-mounted design is suitable for houses, office buildings, villas, shopping malls, factories and warehouses.

Compared with the 2-wire version, the H205 provides a relay-based output structure, making it suitable for systems that require switching output and more flexible integration in fire alarm and control applications.

Key Features

• 4-wire heat detector
• Fixed temperature alarm point: 57°C
• Wide operating voltage: DC9–36V
• Relay output
• Ceiling-mounted installation
• High precision heat sensor
• Stable SMT design
• Anti-dust structure
• Resistance to electromagnetic interference
• Flashing indicator once every 35 seconds in normal condition
• Suitable for fire alarm and control systems

Technical Specifications

Operating voltage: DC9–36V
Static current: ≤50uA
Alarm current: ≤50mA
Environment temperature: -10°C to +85°C
Alarm temperature: 57°C
Alarm reset: Power reset / auto reset
Mounting method: Ceiling mounted
Detecting area: 20 m²
Indicator: Flash once every 35 s
Output mode: Network alarm
Sensor type: High precision heat sensor
Product size: 100 mm (diameter) × 57 mm (height)

Wiring Description

4-wire version:

1. Power “-” input
2. Power “+” input
3. Relay output (COM)
4. Relay output (N.O)

Applications

• Houses and apartments
• Villas and office buildings
• Shopping malls
• Factories
• Warehouses
• Fire alarm systems requiring 4-wire detector wiring
• Alarm and control systems requiring relay output