F220-P BOSCH, The F220 Photoelectric Smoke Detectors Series are UL Listed, open-area photoelectric smoke detectors. Use them with commercial fire protective signaling systems and household fire warning systems (see NFPA 72, the National Fire Alarm Code). These smoke detectors scatter light using a pulsed infrared source operating with a gated, high-speed, photodiode infrared sensor. The symmetry of the optical chamber allows 360° uniform smoke entry, but minimizes external light entry. The detectors use low current electronic circuitry, so they can connect to 12 VDC nominal or 24 VDC nominal power source circuits.
Configure the detectors into two-wire or four-wire versions by selecting the appropriate mounting base. These detectors are compatible with any of the F220+B6 bases:
F220-B6 12/24 VDC Two+wire Mounting Base
F220-B6R Standard 12/2(more...)
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