NC943B
Single Zone Call Controller c/w 12V 140mA PSU
Trade Price
£115.12
Per
1
Unit
EACH
Pack Quantity
Information
A single zone call controller c/w a 12V 140mA PSU and standby battery. Compatible with C-TEC’s entire range of 800 Series Call System components. Capable of indicating standard (constant tone) and emergency (intermittent tone) calls. Includes a volume adjustable sounder and a link-selectable Call Accept/Reset button. Power On and Alarm ‘CALLING’ LEDs. Volt-free relay output for the optional connection of externally powered beacons, etc (relay activates on active call signal). Standby battery provides up to 24 hours standby and 15 minutes alarm running time. Mounts on a standard UK 25mm double gang flush or surface back box. Also available as part of the NC951 Accessible Toilet Alarm Kit.
Technical Specifications
Mains supply
230V 50/60Hz (23mA max. current). 50Hz frequency.
Internal power supply
12V d.c.
Total output current limited to
140mA.
Quiescent current
0mA (none).
Max battery size and type
Includes an onboard 500mA battery back up facility providing 24 hours standby and 15 minutes alarm running time.
Alarm current
Determined by the number/type of field devices connected to the call controller/system.
Auxiliary relays
Includes one set of volt free relay contacts (NO/C/NC). Relay activates when a call is received by the controller. Rated at 30V d.c. @ 1A.
Open collector outputs
None.
Indicators
Red Alarm LED; Green Supply Present LED (flashes green when standby battery is active).
Controls
Adjustable volume control; Disable standby battery; Link-selectable Call Accept/Reset button. When Accept is selected indicators on relevant field devices will activate intermittently to reassure u
Connections
-Ve (common -Ve terminal for all devices); +Ve (+12V nominal supply for powering emergency call points, overdoor lights, etc.); Signal (the trigger line which activates the NC943B).
Expansion connections
None.
Call acknowledgement functionality
Yes.
Product dimensions (mm)
147 W x 87 H x 34 D mm. Mounts on a standard 25mm UK double gang back box.
Construction & finish
Plastic.
IP Rating
IP30.
Weight
294g.
Operating conditions/temperature
-5ºC to +40ºC. Max. relative humidity 95% non-condensing.
Product Dimensions:
147 W x 87 H x 39 D mm. Mounts on a 25mm UK double gang back box.
Document Links
Datasheet