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All technical features and data are subject to changes without notice, resulting from continuous development and improvement.
Product Leaflet Date of issue Revision / Date of revision
MEW00279 2002-10-21 3 / 2006-08-31
Type number
1740 Alert annunciation controller.
Technical data
Voltage (V DC)
nominal
See input 1 below.
Current consumption at nom. volt. (mA)
quiescent
1
active
2
10
40
Ambient temperature (°C)
operating
storage
0 to +40
-40 to +70
Ambient humidity (% RH) max. 90, non condensing
Ingress Protection rating (estimated) IP61 (with the "O" ring gasket)
Inputs
1. Operation
2. Fire
3. Fire brigade alerted
4. Acknowledged
24 V DC, (voltage input, 19-30 V DC, via a time channel)
General fire alarm (normally open contact)
Fire brigade tx activated (normally open contact)
Alert annunciation acknowledged (normally open contact)
Outputs
1. Acknowledge
2. Reset
Relay contacts for 1 A @ 24 V DC.
Push button "Kvittering" activated (normally open)
Push button "Återställning" activated (normally open)
Size W x H x D (mm) 220 x 145 x 50
Weight, (g) 400
Colour (high impact ABS) Grey (RAL 7035)
Approvals CE; Conforms to EN54-2 and –4 whenever applicable. Conforms to
SBF 110:6.
1
LED "Drift" turned on.
2
LED "Kvittering" or LED "Räddningstjänsten larmad" turned on.