Interconnectable Optical Smoke Alarm
2SFW

Mains-powered Optical smoke alarm from the ‘Slick’ range of fast-fit alarms that can be interconnected with up to 23 other Kidde and Firex mains alarms.

The ‘Slick’ range requires installation by a professionally qualified electrician and complies with UK Building Regulations for new housing and associated standards (Grade D, BS5839, Part 6).

Unique fast-fit system with separate base plate, for ease of fitting and maintenance

Integral, double-decker screwless terminal block for fast, push-fit connection

Auto reset after activation

Separate Test and Hush buttons to test and temporarily silence nuisance alarms

Alkaline back-up battery provides continuous operation in the event of mains failure

Interconnectable with other Kidde mains smoke and heat alarms and Kidde mains CO alarms using ‘Smart Interconnect’ technology

Tamper-resistant locking device – prevents unauthorised removal without the use of a tool

Deep Base – allows easier wiring

Model 2SFW

Power Supply 230V mains

Temperature Range 0ºC to +40ºC

Humidity Range Up to 93% Relative Humidity (RH) non-condensing

Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing

Alarm Dimensions 135 x 135 x 60mm (including ‘Slick’ mounting base)

Alarm Weight (including batteries) 280g

Warranty 10 years

Approvals BSI certified to BS EN14604:2005

CE tested and certified

Associated Standard BS 5839 Part 6 Grade D

Sensor Optical chamber with insect-resistant width slot entry inlet portals

Chamber Size 41mm outside diameter x 16mm approximate depth (external)

Sensitivity Complies with BS EN14604:2005

Detection Band infrared light wavelength

Button Test Simulates the effect of smoke within the sensing chamber, checks electronics and sounder

Automatic Self-test Circuitry is tested every 40 seconds and unit beeps if fault is detected

Supply Voltage 230V AC, 50 Hz (nominal UK voltage)

Power Consumption Maximum 80mA

Battery Back-up User-replaceable alkaline 9V battery (MX1604)

Battery Monitoring Battery is monitored and unit emits a single chirp every 40 seconds if a fault is present

Low Battery Warning 30-day low battery indicator

Power-on Indicator Continuous green LED

Alarm Sounder Electronic piezo-electric sounder (T3 pattern sound - three pulses - space - three pulses)

Sound Output 85dB (A) minimum at 3 metres

Alarm Frequency 3.2 kHz typical

Alarm Status Red LED flashes rapidly, typically once every 2/3 seconds = unit sensing a fire event

Red LED flashes once every 10 seconds = unit in hush condition, auto reset after 7 minutes

Red LED flashes once every 35 seconds = normal quiescent operation

Interconnection Up to 24 units (smoke, heat and CO) can be hardwire interconnected using SMART® interconnect system with optional control (see below)

Optional Controls Wireless Base Remote Test and Hush Unit (KN-RTH-RF) when used with Wireless Base

Fixing ‘Slick’ mounting deep base as supplied

Base Cable Connect. Screwless Terminal Block with slot release feature for conductors