Description
Stainless Steel Single Zone Call Controller c/w 12V PSU
NC941/SS
- A high-quality brushed stainless steel single zone call controller c/w a 12V 250mA PSU.
- Fully compatible with C-TEC's entire range of 800 Series Call System components.
- Capable of indicating standard (constant tone) and emergency (intermittent tone) calls.
- Power On and Alarm ‘CALLING’ LEDs.
- Open collector output goes to 12V when the controller's onboard buzzer sounds.
- Mounts on a standard UK 40mm double gang flush or surface back box.
- Optional NC941B 0.3A battery battery backup kit also available.
| Mains supply | 230V 50/60Hz (36mA max. current). 50Hz frequency. |
| Internal power supply | 13-13.8V 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 | RESET button (can be disabled if required). |
| 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/SS). |
| Expansion connections | Batt + and Batt - (for connection to an optional remote NC941B battery back up kit). |
| Call acknowledgement functionality | No. If this feature is required consider using our NC943B plastic call controller instead. |
| Product dimensions (mm) | 156 W x 94 H x 37 D. Mounts on a standard 40mm UK double gang back box - see notes below. |
| Construction & finish | Brushed stainless steel. |
| IP Rating | IP41. |
| Weight | 460kg. |
| Operating conditions/temperature | -5ºC to +40ºC. Max. relative humidity 95% non-condensing. |
| Notes | For flush mounting, we suggest a 47mm double gang steel back box such as Appleby's SB628 or MK's 878 ZIC. For surface , we suggest the MK K2212 ALM or 2212 ALM Aluminium coloured. If a plastic dry lining box is required, use the Marshall-Tufflex MDLB30 |
