Burkert Type 8631 - Manual (Page 16)

14 - 8631
T
ECHNICAL
D
ATA
english
Functional data
Resistance at 20°C (R
20
) 510 ohm
Minimum terminal voltage 11.7 V
Minimum current 23 mA
The maximum voltage and current values are determined by the permissible electrical operating
equipment.
Electrical data with EEx-i approval
Connections 2 x M16 cable connector with screw terminals for
cable cross-sections 0,14 ... 1,5 mm²
Sensor power supply see Manufacturer's Declaration form Fa. Pepperl & Fuchs
(siehe Anhang)
Valve power supply see Qualification Test Certificate PTB 01 ATEX 2173
(siehe Anhang)
Safety requirements
he maximum permissible voltages and the associated maximum permissible short-circuit currents for the
corresponding gas group may be taken from Table A1 in the standard DIN EN 50020, 1994 Edition.
In order that the maximum permissible temperature at the solenoid coil of the valve installed is not
exceeded, the following limits to the applied power for use in the corresponding temperature class must be
observed:
ATTENTION!
1) Ambient temperature for compl. TopControl 8631 (temperature inside the device is higher by max. 5°C)
Temperature class
Max. permissible ambient
temperature 1) [°C]
Max. permissible
power [W]
T6
+50 0,4
+45 0,5
+40 0,7
+35 0,8
T5
+50 0,8
+45 1,0
+40 1,1
The control head must not be exposed directly to sunshine or strong light sources: this
would cause additional warming!