Electrical Data With Eex-I Approval - Burkert 8631 Operating Instructions Manual

T D
ECHNICAL ATA

Electrical data with EEx-i approval

Connections
Sensor power supply
Valve power supply
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:
Temperature class
T6
T5
1)
Ambient temperature for compl. TopControl 8631 (temperature inside the device is higher by max. 5°C)
ATTENTION!
The control head must not be exposed directly to sunshine or strong light sources: this
would cause additional warming!
Functional data
Resistance at 20°C (R
Minimum terminal voltage
Minimum current
The maximum voltage and current values are determined by the permissible electrical operating
equipment.
14 - 8631
2 x M16 cable connector with screw terminals for
cable cross-sections 0,14 ... 1,5 mm²
see Manufacturer's Declaration form Fa. Pepperl & Fuchs
(siehe Anhang)
see Qualification Test Certificate PTB 01 ATEX 2173
(siehe Anhang)
Max. permissible ambient
1)
temperature [°C]
+50
+45
+40
+35
+50
+45
+40
) 510 ohm
20
11.7 V
23 mA
Max. permissible
power [W]
0,4
0,5
0,7
0,8
0,8
1,0
1,1