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Electrical data – Burkert Type 6144 User Manual

Page 12

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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