Mains Powered Heat Alarm - BRK 690MBX - 21.99 ex VAT

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Mains Powered Heat Alarm with Alkaline Back-up Battery - BRK 690MBX

More than 20 in stock
21.99 ex VAT
26.39 inc VAT
Product Overview

Ideal for areas where a standard smoke alarm would be unsuitable, the BRK 690MBX is a mains powered heat alarm designed to detect rapid increases in room temperature. Kitemarked to the latest standards and with a 5 year manufacturer's warranty, the BRK 690MBX also benefits from multi-alarm interlink feature, meaning that it can be hard wire interconnected with up to 12 compatible smoke and heat alarms within a system.

  • 230V mains powered heat alarm
  • 9V alkaline back-up battery (included)
  • CE marked and Kitemarked to BS 5446-2
  • 5 year manufacturer's warranty
  • Suitable for installations complying to BS 5839-6: 2013 Grade D, E and F
  • Ideal for kitchens and garages where a smoke alarm would be unsuitable
  • Monitors rate of increase in room temperature
  • Up to 12 600MBX series smoke and heat alarms can be hard wire interconnected
  • An interlinked system provides the earliest possible warning of fire
  • Test button facility
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Interconnection

The table below shows all the units that can interconnect with the BRK mains powered smoke and heat alarms.

Alarms from the Same Series

Model Number Type of unit Type of interconnection
670MBX Ionisation Smoke Alarm Hard wire interconnect
660MBX Optical Smoke Alarm Hard wire interconnect
690MBX Heat Alarm Hard wire interconnect
Technical Data

This is the technical data for the Mains Powered Heat Alarm with Alkaline Back-up Battery - BRK 690MBX.

Product Code BK690MBX
Weight 0.27kg
Dimensions (HxDia) 58x140mm
Sound Output 85dB at 3m
Back-Up Battery 9V alkaline
Operating Temperature +5 C to +38 C
Relative Humidity 10% to 85%

Data Sheets

FAQs (14)

Q. is there a different alarm sound for optical and heat sensors to tell you the difference in what kind of fire it is?

A. There is only one alarm sound type when a fire is detected, when interconnected all smoke and heat alarms will sound. However only the triggered alarm will have a rapidly flashing red indicator.

Q. How long do smoke alarms last before needing replacement?

A. It is recommended that smoke alarms are replaced after 10 years. This is because the sensors in the smoke alarms become less sensitive and may not activate when a fire is present.

Q. How long do the batteries last in smoke alarms?

A. The 9V alkaline batteries last 12~18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime. Some lithium cells are also rechargeable, and when used in a mains-powered alarm may last for the entire functional lifespan of the alarm. Newer alarm models may also feature a "sealed" lithium battery. These batteries are specialist components which are designed to not be removed or need replacing by the user, and have been tested by the alarm manufacturer to ensure they last for the lifetime of the alarm.

Please Note: the actual lifetime of your batteries depends on how often the alarms are tested or activated, as sounding the alarm draws more power than when the alarms are "waiting" to detect fire. You should also read your alarm's manual to make sure you only use the recommended types and brands of batteries, as failing to follow these instructions may cause the alarm to malfunction, not alerting you in the event of a fire, and might also invalidate the warranty.

Q. What sort of smoke alarm system would I need to install for a HMO?

A. BS 5839-6 recommends that one or two storey HMOs with an individual floor area of no more than 200sqm (not the total of both floors) should have a Grade D smoke alarm system installed. Grade D refers to mains powered smoke alarms with a back up battery power supply. The alarms can be interlinked either by wire or by radio signal and the system does not require a separate fire alarm panel. For HMOs of 3 storey or higher, a Grade A panel system would need to be installed. This can cover the whole of the building, or can be used just for the communal areas with a separate Grade D system installed for the individual dwellings. For both applications, the level of cover should be a minimum of LD3 (in all escape routes) but this may change according to the fire risk assessment.

Q. Why do your mains powered alarms have batteries?

A. All our mains powered alarms have a battery backup. Although mains powered alarms without this option do exist (BS5839 part 6 grade E), we regard them as far too dangerous, as a lot of fires are caused by electrical faults leaving the building unprotected against fire if the smoke alarms have no backup battery. With our mains powered alarms you will always be protected.

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Pricing & Availability

Model Stock Levels Price Weight
Product Code: BK690MBX Stock Level:
More than 20 in stock
Price:

21.99 ex VAT

26.39 inc VAT

Weight:
0.27kg

Customer Reviews

1 customer has rated this product and it has an overall rating of 4 out of 5

All our reviews are written by real customers that have purchased this product from us and are publsihed without modification.

4 / 5 Stars

Reviewed by: -

A little pricey but a great product, you get what you pay for.

Published on: 24th December 2015

Delivery Options

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