NC920F - 20 Zone Master Call Controller, flush, c/w 12V 300mA PSU, relay, reset and mute/call buttons
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List Price £484.98 incl. VAT
C-TEC - NC920F

20 Zone Master Call Controller, flush, c/w 12V 300mA PSU, relay, reset and mute/call buttons

IP41 Rating
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Product Description

The NC920F is compatible with C-TEC’s entire range of 800 Series field devices.

Housed in flush mounting plastic enclosure the NC920F measures at just 214mm x 178mm. It has two call levels - standard which is a constant tone and emergency an intermittent tone. It also has an optional mute and call accept/reset buttons.

The ‘Call Accept’ functionality allows staff to send an intermittent call acknowledgment signal to calling zones to confirm help is on the way (dependent on wiring and field devices used).

It includes a 12V 300mA PSU and 2 volt-free relay contacts which activate on a standard or emergency call. As well as innovative slide-in labelling system.

Zones can be wired in 4 or 6 core (7/02) stranded security cable. Additional master controllers and expansion units are available for use as repeaters on larger sites.

Optional boxed PSUs c/w with space for a 12V VRLA battery available for sites where a standby battery facility is required.
Description NC920F
Mains supply 230V 50/60Hz. (36mA max. current)
Internal power supply 11V d.c. (300mA max. current when powered by Mains)
Quiescent current 0mA (none)
Alarm current Determined by the number/type of field devices connected to the call controller/system
Auxiliary relays 2 volt free relay contacts (NO/C/NC). Activate when a standard or emergency call is received by the controller. Both relays rated at 30V d.c. @ 1A.
Auxiliary inputs External PSU Input: 9V-15V d.c. @ 400mA (suitable for use with an BF560-12 12V 2A boxed PSU which has space available for a 12V 7AH battery)
Indicators Green Power on LED; 20 x red Zonal Alarm LEDs (lit steady for a Standard call, pulse for an Emergency call); Internal buzzer (on steady for any Standard call, intermittent for any Emergency call)
Controls 2 Buttons - (A) Reset or inactive ; (B) 'Mute' or 'Call Accept'. (Both buttons are link selectable). If Call Accept is selected indicators on relevant field devices will emit a slow intermittent tone to reassure users help is on the way
Expansion connections CONN2 allows the connection of 1 x NC910EF 10 Zone Expansion Unit or 1x NC920EF 20 Zone Expansion Unit
Call acknowledgement functionality Yes
Dimensions 214 W x 178 H x 70 D mm (overall). Hole required for flush mounting is 176 W x 162 H x 55 D mm
Construction & finish Plastic detachable lid and back box. RAL7035
IP rating IP41
Operating temperature -5ºC to +40ºC. Max. relative humidity 95% non-condensing.
Weight (Gross) 1.47kg
  • UVDB Registered
  • PLASA Member
  • Member of BESA
  • BSI 9001
  • ISCE supporting member