Conventional Fixed Temperature Relay Output Heat Detector

• Type: Heat Detector
• Usage: Temperature
• Installation Mode: Ceiling Mounted
• Certification: CE, ISO, RoHS, UL En54
• Application: Home, Industry
• Wire: 2 or 4 Wire Heat Detector
• Model NO.: HD751
• Warranty: 5 Year Limted Warranty
• Ceiling Spacing: 40-50 Foot Rating for Heat Sensor
• Alarm Indicator: LED Continuously Emitting Red Light
• Temperature Range: -10 to 50
• Humidity: 0 to 95% Rh, No Condensation or Icing
• Dimensions: 100mm (Dia) X 46mm (Ht) with Base
• Weight: 120g/Set with Base
• Transport Package: 1PC/Box, 100PCS/Carton
• Specification: UL, EN54, CE, ROSH
• Trademark: SENTEK
• Origin: China Ningbo
• HS Code: 8531100000
• Production Capacity: 60000/Month

Product Description

Conventional Fixed Temperature Relay Output Heat Detector
All of the Sentek's HD751 series detectors meet the requirements of UL521 and EN 54-5 for use in fi re 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 HD751 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72 standards, localcodes, and ordinances.
Specification:

Response Temperature	57°C (135°F)
Ceiling Spacing:	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:	102mm (dia) x 43mm (ht) with base
Weight:	125g/set with base

Conventional Fixed Temperature Relay Output Heat Detector


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:
HD751-2 2 wire heat alarm
HD751-2L 2 wire heat alarm with remote LED output
HD751-4 4 wire heat alarm (12/24VDC)
HD751-4B 4 wire heat alarm with buzzer (12/24VDC)
HD751-4AR 4 wire heat alarm with auto-reset function (12/24VDC)
HD751-4ARB 4 wire heat alarm with auto-reset function and buzzer (12/24VDC)
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