Hochiki SOE-24V (part number 0200-11280) is a conventional photoelectric smoke detector certified to UL 268 7th Edition for open area and in-duct applications. Its multi-spectrum smoke categorization uses an IR LED and a blue LED to tell smoke types apart, so it detects smoldering and flaming fires, including polyurethane fuels, while reducing nuisance cooking alarms.
A green/red status LED flashes green every 3 seconds in normal standby, flashes red every 3 seconds if sensitivity drifts outside the approved window, and latches red in alarm. The detector has automatic drift compensation, a built-in magnetic test feature and a hidden break-away locking feature for use with NS bases. It runs on 8 to 35 VDC and fits Hochiki NS and HSC conventional bases.
Specifications
| Sensing |
Photoelectric, IR LED and blue LED with photodiode |
| Operating voltage |
8 to 35 VDC |
| Standby current |
59 µA |
| Alarm current |
5 mA minimum to 150 mA maximum allowable |
| Sensitivity |
1.82 to 3.16 %/ft open area; up to 4.55 %/ft in duct |
| Operating temperature |
32°F to 120°F (0°C to 49°C) |
| Dimensions |
3.94 in. diameter x 1.77 in. tall |
| Color |
Ivory |
| Certifications |
UL 268 7th Edition; CSFM 7272-0410:0509 |
Installation notes
- Compatible bases: NS4-100, NS6-100, NS4-220, NS6-220, NS4-221, NS6-221, NS4-224, NS6-224, HSC-220R, HSC-221R, HSC-224R, HSC-4R and HSC-4R12
- Space detectors per NFPA 72; on smooth ceilings the nominal spacing is 30 ft (9.1 m)
- Startup time is 25 seconds maximum
- Test with the built-in magnetic test feature
Related models
- NS-series bases: NS4-100 and NS6-100 two-wire bases, NS6-221 and NS6-224 bases
Documents
FAQ
Which bases does the SOE-24V fit?
Hochiki NS4-100, NS6-100, NS4-220, NS6-220, NS4-221, NS6-221, NS4-224, NS6-224, HSC-220R, HSC-221R, HSC-224R, HSC-4R and HSC-4R12 bases.
What voltage does it run on?
8 to 35 VDC, with a standby current of 59 µA.
Can it be used in ducts?
Yes. It is certified for open area and in-duct applications, with in-duct sensitivity ranges given from 300 to 4000 FPM.
What do the LED colors mean?
Green flashing every 3 seconds is normal, red flashing every 3 seconds means sensitivity has drifted outside the window, and steady red means alarm.
