Engineering; Max. Ambient Temperatures; Power Dissipation - Is Pac 9146 Betriebsanleitung

Operating Instructions
5

Engineering

5.1 Max. ambient temperatures

The IS pac isolators can be used over a wide temperature range. Depending on the
isolator version and installation method different maximum ambient temperatures may
result.
Ventilation: without ventilation
Installation: Single unit
Orientation: any
Type:
1 70°C
9146/10-11-12
2
9146/20-11-11 70°C
Ventilation: with ventilation
Installation: Single unit
Orientation: any
Type:
1 9146/10-11-12 70°C
2 9146/20-11-11 70°C

5.2 Power dissipation

Data sheets are describing the maximum power dissipation in standard operation (output
20 mA; power supply 24 V DC; load = 250 Ω). In practice not all isolators are working with
full load. Therefore engineering is done typically with an average power dissipation of 70 %
(P ).
70%
Type Channels
9146/10-11-12 1
9146/20-11-11 2
14
Frequency Transmitter Type 9146
DIN-rail
vertical horizontal
50°C 65°C
50°C 65°C
DIN-rail
vertical horizontal
60°C 70°C
60°C 70°C
max. power dissipation
1,1 W
1,5 W
english
pac-Carrier
vertical horizontal
40°C 60°C
40°C 60°C
pac-Carrier
vertical horizontal
50°C 65°C
50°C 65°C
70 % power dissipation
0,77 W
1,05 W