Heat Detector AH 751-2
Conventional Heat Detector
All of the Chloride UK AH751 series detectors meet the requirements of UL521 and EN 54-5 for use in fire alarm signaling systems, which provide fast and reliable response for heat 57°C (135°F) or Rate-of-Rise detection, They are intended for use in 2-wire/4-wire Class A2 supervised zone circuits.The AH751-2 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.
Product Features:
• 2 or 4 wire models
• Advanced detection and discrimination algorithms
• Easy installation and maintenance
• Sleek low-profi le housing design
• Durable sensor head, no need for replacement
• SMD circuit board design-satisfactory quality and reliability guaranteed
• N/C (normal/close)-N/O (normal/open)selectable relay output
• AR (Auto Reset) function for security systems (optional for 4 wire models) Sensor base
option: standard and Shottky Diode
• Five-year limited warranty
The range includes:
AH751-2 2 wire heat alarm
AH751-2L 2 wire heat alarm with remote LED output
AH751-4 4 wire heat alarm (12/24VDC)
AH751-4B 4 wire heat alarm with buzzer (12/24VDC)
AH751-4AR 4 wire heat alarm with auto-reset function (12/24VDC)
AH751-4ARB 4 wire heat alarm with auto-reset function and buzzer (12/24VDC)
Product Data:
Response Temperature: Fixed temperature: 57°C (135°F) or Rate-of-Rise
Ceiling Spacing: 40-50 foot rating for heat sensor
Reset Voltage: less than 1 volt
Alarm Indicator: LED continuously emitting red light
Remote Output: 25 mA max., diode gate
Temperature Range: -10°C to 50°C
Permissible Current: 80mA maximum
Humidity: 0 to 95% RH, no condensation or icing
Alarm Contact: (for 4-wire) NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC
Dimensions: 100mm (dia) x 46mm (ht) with base
Weight: 120g/set with base
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