compact, attractive, and easy to install, the system sensor 2012H detector is designed to respond to a broad range of ?es while providing maximum stability. this model also features low-voltage wiring making it ideal for applications such as apart- ment 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 detec- tor 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 func- tion. 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 ?shes 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 tamper- proof feature. screw terminals and a mounting bracket are provided for easy installation. 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 model 2012H photoelectronic detector required accessory a77-727-01 12 vdc power supply (required for system to be ul listed) product overview 2012H photoelectronic smoke detector 2012H direct-wire smoke detector with built-in relay and horn
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 operating voltage 12 vdc (nominal) relay contact rating 1 form a, .5 a @ 30 vdc standby current 60 ? maximum average alarm current 20 ma maximum average @ 12 vdc temperature range 32 to 120? (0 to 50?) system sensor sales and service ? 1999 system sensor. the company reserves the right to change product speci cations without notice. a05-238-03 6/99(10k) #475 ordering information part number description 2012H photoelectronic smoke detector with relay, 12 vdc, multiple station a77-727-01 12 vdc power supply, mounts to a 4 square box, 2 1 8 deep 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 general specifications electrical ratings 2012H wiring diagram ( ) (+) interconnect up to 12 detectors auxiliary alarm relay 12ovac a77-727-o1 12vdc power supply gray red black black (+) ( ) power input auxiliary (+) ( ) power input auxiliary (+) ( ) power input auxiliary (+) ( ) power input auxiliary (+) ( ) power input auxiliary (+) ( ) power input auxiliary signal ground signal ground signal ground signal ground signal ground signal ground maximum power bus length (in feet), given number of units (maximum per bus) and wire size. wire gauge 14 awg 16 awg 18 awg 1 unit 5000 3735 2349 2 units 2970 1867 1174 3 units 1980 1245 783 4 units 1485 933 587 5 units 1188 747 469 6 units 990 622 391 7 units 848 533 335 8 units 742 466 293 9 units 660 415 261 10 units 594 373 234 11 units 540 339 213 12 units 495 311 195 maximum interconnect bus length: 5,000 ft., no. 18awg or larger dual conductor cable. all wiring must conform to local electrical codes. residential smoke detector placement as de ned 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 un n- ished attics. in new construction, a smoke detector shall also be installed in each sleeping room .
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