Burkert Type 6144 - Manual (Page 12)

12
07 ATEX 2048
English
Technical data Single valve
7.1.3. Temperature class T4:
max. permissible surface temperature for T4: 135 °C
Temp.
class
Max. permis-
sible ambient
temperature
[°C]
Installation
Max. per-
missible
output [W]
Ignition
protec-
tion
type
Explo-
sion
group
T4
-40 ... +90
Block
installation
0,4
Ex ia IIC
-40 ... +80 0,5
-40 ... +75 0,6
-40 ... +70 0,7
-40 ... +60 0,8
-40 ... +105
Single
valve
0,4
-40 ... +100 0,5
-40 ... +95 0,6
-40 ... +90 0,7
-40 ... +85 0,8
-40 ... +80 0,9
-40 ... +75 1,0
-40 ... +70 1,1
7.2. Electrical data
The flipper valve type 6144 with ignition protection type intrinsic safety
Ex ia IIC must only be connected to certified, intrinsically safe electric
circuits with the following maximum values.
Explosion group
IIC
Category ia
Temperature class T6 / T5 / T4
Max. permissible input voltage (Ui) 35 V
Max. permissible input current (li) 0.9 A
Max. permissible input power (Pi) see tables in chapter "Temper-
ature-class-specific data"
Power supply voltage:
For the maximum permissible voltages and the corre-
sponding maximum permissible short-circuit currents for
the respective explosion groups, please see standard EN
60079-11.
Some value pairs for the explosion group IIC are listed as an
example for every ignition protection type.
Valve with ignition protection type intrinsic safety Ex ia IIC.
Voltage
value [V]
= Ui
15 18 20 22 25 28 30 35
Current
value [A]
= Ii
0,9 0,44 0,309 0,224 0,158 0,120 0,101 0,073