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MB-240

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MB-240 is an advanced photo-thermal two-wire conventional detector designed for the MB series of conventional fire alarm systems. Like the MB 220 smoke detector, it quickly detects fast, clean burning and smoldering fires while its heat sensors provide an additional layer of protection as the include a alarm threshold which improves the rejection of many factors that cause common false alarms with an additional alarm raised when temperature reaches 60°C or more.

Application Environment

Oil & Gas

Power & Utilities

Hospitals

Retail

Hotels

Skyscrapers

Smart & Safe City

Manufacturing

Download Datasheet

Download
Catalog

MB-240 is an advanced photo-thermal two-wire conventional detector designed for the MB series of conventional fire alarm systems. Like the MB 220 smoke detector, it quickly detects fast, clean burning and smoldering fires while its heat sensors provide an additional layer of protection as the include a alarm threshold which improves the rejection of many factors that cause common false alarms with an additional alarm raised when temperature reaches 60°C or more.

Operates on low current
360° view, red LED indicates alarm on

Detects a either a rapid increase in temperature, or when temperature reaches above 60° C or 92° C (depending on switch setting)

  • Quick and simple to install, operate and service
  • Removable detector chamber for cleaning
  • Simple clean design
  • Maintenance trouble notification
  • Removable detector chamber
  • Wiring via common mounting base
  • Drift compensation
  • Lock which opens only with special tool, to prevent unauthorized sensor removal

Technical Specifications:

Code MB-240
Description Conventional Opto /Heat Multi-Sensor Detector, UQGS.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
Heat Element rating 60°C – 77°C – 92°C
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 -o 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-240