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2012H Direct-Wire Smoke Detector with Built-in Relay and Horn
Model 2012H Photoelectronic Detector
2012H Photoelectronic Smoke Detector
Required Accessory A77-727-01 12 VDC power supply (required for system to be UL listed)
Product Overview 12 VDC operation, 4-wire Built-in 85dB electronic horn with temporal (3) tone Built-in, normally open relay can be connected to lights, bells, horns, or remote annunciator Interconnectable up to 12 units Visual alarm and power indicator Ceiling white color Built-in 8 second delay on relay output Built-in test switch Twist-on mounting bracket with tamper option for easy installation Rugged chamber design for greater stability 3-year warranty Compact, attractive, and easy to install, the System Sensor 2012H detector is designed to respond to a broad range of fires while providing maximum stability. This model also features low-voltage wiring making it ideal for applications such as apartment buildings and nursing homes. Features. The System Sensor 2012H photoelectronic detector is designed prima-
rily for applications where low-voltage Class 2 wiring may be used. This detector is non-latching and offers an 85dB alarm horn. The 2012H features the NFPA72 required audible emergency evacuation signal referred to as temporal (3) tone. An external push button provides a test of the detector's alarm function. Up to 12 units can be interconnected so that if one detector alarms, all detectors alarm. A normally open auxiliary alarm relay with an 8 second delay is available for controlling external functions. A visible LED indicator flashes once every 30 seconds in standby and rapidly (every 0.5 seconds) in alarm when detecting smoke. The detector offers low-voltage operation and a tamperproof feature. Screw terminals and a mounting bracket are provided for easy installation.
General Specifications Size 1.75 H x 5.5 dia. (44.5 mm h x 140 mm dia.) Weight 5.3 oz. (150 grams) Humidity Range 10% to 93% RH, noncondensing Electrical Ratings Operating Voltage 12 VDC (nominal) Relay Contact Rating 1 Form A, .5 A @ 30 VDC 2012H Wiring Diagram
Maximum power bus length (in feet), given number of units (maximum per bus) and wire size.
Residential Smoke Detector Placement As defined in NFPA72 "Smoke detectors shall be installed outside of each separate sleeping area in the immediate vicinity of the bedrooms and on each additional story of the family living unit, including basements and excluding crawlspaces and unfinished attics. In new construction, a smoke detector shall also be installed in each sleeping room".
Standby Current 60 A maximum average Alarm Current 20 mA maximum average @ 12 VDC
Temperature Range 32 to 120F (0 to 50C)
RED
Wire Gauge 1 Unit 2 Units 3 Units 4 Units 5 Units 6 Units 7 Units 8 Units 9 Units 10 Units 11 Units 12 Units
14 AWG 5000 2970 1980 1485 1188 990 848 742 660 594 540 495
16 AWG 3735 1867 1245 933 747 622 533 466 415 373 339 311
18 AWG 2349 1174 783 587 469 391 335 293 261 234 213 195
(+) (-) (+) (-) SIGNAL GROUND (+) (-) (+) (-) SIGNAL GROUND (+) (-) SIGNAL GROUND GRAY
(+) A77-727-O1
BLACK
12VDC POWER (-) SUPPLY
12OVAC
BLACK
POWER INPUT
POWER INPUT
POWER INPUT
SIGNAL GROUND
AUXILIARY
AUXILIARY
AUXILIARY
Maximum interconnect bus length: 5,000 FT., No. 18AWG or larger dual conductor cable. All wiring must conform to local electrical codes.
POWER INPUT
POWER INPUT
SIGNAL GROUND
(+) (-)
POWER INPUT
SIGNAL GROUND
AUXILIARY
AUXILIARY
Auxiliary Alarm Relay
AUXILIARY
Interconnect Up To 12 Detectors
Ordering Information Part Number 2012H A77-727-01 Description Photoelectronic smoke detector with relay, 12 VDC, multiple station 12 VDC power supply, mounts to a 4 square box, 2 18 deep
System Sensor Sales and Service
System Sensor Headquarters 3825 Ohio Avenue St. Charles, IL 60174 Ph: 800-SENSOR2 Fx: 630/377-6495 Documents On Demand 1-800-736-7672 x3 www.systemsensor.com System Sensor Canada Ph: 905.812.0767 Fx: 905.812.0771 System Sensor UK Ph: 011.44.1403.276500 Fx: 011.44.1403.276501 System Sensor in China Ph: 011.86.29.524.6253 Fx: 011.86.29.524.6259 System Sensor in Singapore Ph: 011.65.273.2230 Fx: 011.65.273.2610 System Sensor- Far East Ph: 011.852.2191.9003 Fx: 011.852.2736.6580 System Sensor- Australia Ph: 011.613.54.281.142 Fx: 011.613.54.281.172
(c) 1999 System Sensor. The company reserves the right to change product specifications without notice.
A05-238-03*6/99(10K)*#475

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