Eaton DF61002 - Page 46

46 INSTALLATION AND OPERATION MANUAL 25-16328-B November 2020 www.eaton.com
Section 3: Panel controls & indicators
Specifications
Loop load  Min Nom Max Units
Quiescent current   310  μA
Operating voltage  18 30  V DC
Inputs     
Trigger resistance   5.6  KΩ
End of line resistor   22  KΩ
Short circuit fault threshold resistance   1 KΩ
Open circuit fault threshold resistance 33   KΩ
Environmental     
Operating temperature  -10  +60 °C
Humidity (non condensing)   95 %RH
Standards     
EN54 : Pt2 & 4     
BS5839 : Pt1 (installation)    
Compatibility     
Suitable for use with Eaton analogue addressable fire systems    
Physical     
Dimensions 63mm x 35mm x 18.5mm    
Weight > 0.1gm    
Ingress protection IP40    
Short circuit isolator
This addressable device contains an integral short circuit isolator, which operates
between the – IN terminal and the – OUT terminal. The isolator operates in
conjunction with Eaton Analogue Addressable Control Panels when a low parallel
resistance fault of typically 200? is present between the +VE and –VE of the
loop wiring.
Short circuit isolation data (integral with each device)
Total loop resistance for correct operation of
short circuit isolator
50
Ω
(max)
Continuous current allowable through isolator 700mA (max)
Isolator resistance in closed state 0.13
Ω
(max)
Leakage current into direct short circuit with isolator open 13mA (max)
Parallel fault resistance to be seen at the control panel
for isolators to open
200
Ω
(typ)