Mains supply |
230V 50/60Hz (36mA max. current). 50Hz frequency. |
Internal power supply |
12V d.c. |
Total output current limited to |
250mA. |
Quiescent current |
0mA (none). |
Max battery size and type |
Optional NC941B 12V 0.3Ahr battery back up kit available. |
Alarm current |
Determined by the number/type of field devices connected to the call controller/system. |
Auxiliary relays |
None. |
Open collector outputs |
1 x Output terminal (goes +12V steady when the controller’s buzzer sounds). 20mA max. |
Indicators |
Red Alarm LED; Green Supply Present LED. |
Controls |
Link-selectable Reset/Mute button. |
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 NC941). |
Expansion connections |
Batt + and Batt – (for connection to an optional remote NC941B battery back up kit). |
Call acknowledgement functionality |
No. |
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 |
IP41. |
Weight |
275g. |
Operating conditions/temperature |
-5ºC to +40ºC. Max. relative humidity 95% non-condensing. |
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