Welcome to wziep.com!
Categories
Welcome to wziep.com!
category： Alarm
reference price：￥$4.80 - $6.20
All of the Sentek’s HD912 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 HD912 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.
Specification:
|
Response Temperature: |
Fixed termperature: 57°C (135°F) or Rate-of-Rise |
|
Ceiling Spacing: |
40-50 foot rating for heat sensor |
|
Reset Voltage: |
less than 1 volt |
|
Reset Time: |
less than 1 second |
|
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 |
CE UL Approved Conventional Heat Detector Fire Alarms for Use in Fire Alarm Signaling Systems
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:
HD912-2 2 wire heat alarm
HD912-2L 2 wire heat alarm with remote LED output
HD912-4 4 wire heat alarm (12/24VDC)
HD912-4B 4 wire heat alarm with buzzer (12/24VDC)
HD912-4AR 4 wire heat alarm with auto-reset function (12/24VDC)
HD912-4ARB 4 wire heat alarm with auto-reset function and buzzer (12/24VDC)
| Model | 2/4 wire |
Voltage DC (Min./Max.) |
Standby Current (Max.) |
Alarm Current (12/24V) |
Surge Current (Max.) |
Start-Up Time (Max.) |
Permissible Current (Max.) |
Cycle Time |
Alarm contact |
Certified | Base Model No. |
| HD912-2 | 2 | 10~33V | 45μA | 50mA | 100μA | 30Sec. | 80mA | 1-3 Sec. | — | UL/EN | P/N852001 |
| HD912-2L | 2 | 10~33V | 45μA | 50mA | 100μA | 30Sec. | 80mA | 1-3 Sec. | — | UL/EN | P/N854001 |
| HD912-4-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A | UL/EN | P/N854001 |
| HD912-4AR-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A Auto Reset |
CE | P/N854001 |
| HD912-4ARB-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A Auto Reset |
CE | P/N854001 |
| HD912-4B-12/24 | 4 | 12/24V | 45μA | 30mA | 100μA | 30Sec. | — | 1-3 Sec. | Form A | CE | P/N854001 |
