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841
- 7 day operation
- 200 event memory
- Key protection
- Battery back-up
- Extend or crop overrides
- Volt-free contacts
The 841 is one of the models within the MK8 range of 7 day commercial and industrial controls. This range includes on/off units for boiler, lighting and process control, and pulsed output units for bellringing or siren sounding applications.
Programme entry is via a membrane keypad with audible feedback. For security it is only possible to enter or change the time, programme and extend duration with the removable key in place and turned to the setting position.
The pulsed units, 841 and 842, feature programmable duration and pulse type, continuous or intermittent. The Auto/Off/Man rocker switches allow the output to follow the programmed events, to be switched off, or to be manually on while the switch is held down in this position.
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Technical data
| Code No. | Type | Description | Dimensions
(mm) |
841 |
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087N6568
| 841 | Single channel, 7 day, electronic bell-ringer. Single channel. Up to 200 intermittent or continuous PULSED outputs per week. | 115 wide x 228 high x 50 deep |
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Documentation
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Certificates/Declarations
MK8 Declaration of Conformity
DRL0047 Mk8 Range 11-07.pdf
(0.0 Mb), Literature number: VCAFI212, Language: UK English, Release date: 02/11 2007
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Instructions
841 and 842 Installation Instructions
3283.pdf
(0.0 Mb), Literature number: VIAFT112, Language: UK English, Release date: 01/12 2005
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841 and 842 Installation Instructions 110V
3262.pdf
(0.1 Mb), Literature number: VIAFU112, Language: UK English, Release date: 01/12 2005
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841 and 842 User Instructions
3282.pdf
(0.0 Mb), Literature number: VIAFV112, Language: UK English, Release date: 01/12 2005
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Sales Leaflet
MK 8 Range
606.pdf
(0.3 Mb), Literature number: VBAFD112, Language: UK English, Release date: 01/02 2006
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Wiring Diagrams
811 and 841 Wiring Diagram
811 841.pdf
(0.4 Mb), Literature number: VWAFI112, Language: UK English, Release date: 07/02 2007
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