MB-220 is a conventional two-wire optical photoelectric smoke detector designed for MTech’s MB series of fire alarm system. It provides the fastest response to slow burning or smoldering fires that cause large amounts of visible smoke.
MB-220 is a conventional two-wire optical photoelectric smoke detector designed for MTech’s MB series of fire system. It provides the fastest response to slow burning or smoldering fires that cause large amounts of visible smoke.
Operates on low current
360° view, red LED indicates alarm on
Technical Specifications:
| Code | MB-220 |
| Description | Photoelectric Conventional Smoke Detector, UROX.S36306 |
| Standards | UL268 6th Edition, EN54-7, SII1220, TR TC EAC 043-2017 |
| Specification | |
| Operating voltage | 15V dc to 30V dc |
| Voltage Waveform | Filtered DC, ± 1V max ripple at 120Hz |
| Standby current (average) | 95μA |
| Surge Current (max) | 340μA |
| Alarm current (max) | Must be limited externally to 40mA |
| Start-up time | 20 seconds |
| Sensitivity | 2.55 ± 0.33% /ft |
| Sensitivity checker | Use no climb model TruTest (UL Listed) |
| Reset time (max) | 2 seconds |
| Mounting position | Ceiling at walls in open areas |
| Mounting options | Conventional MB-300 detector base |
| Area coverage | 100m² (subject to local standard) |
| Indication | 360° visibility light pipe |
| Environmental | |
| Environmental operating temperature | 0 – 49°C |
| Humidity (non-condensing) | 0 – 93% RH |
| Physical | |
| Construction | PC/ABS |
| Color | White |
| Dimensions | 101mm x 33mm |
| Dimensions include base | 101mm x 45mm |
| Weight | 0.076 kg |
| Compatibility | |
| Suitable for use with | MTech Conventional System |
MB-220
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