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English – Burkert Type 6104 User Manual

Page 14

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14 - 01 ATEX 2173

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Data on technical function

Coils of Type G1 642 735 are available in 2 versions:

1) Version for use with supply modules 300 Ω (300 Ω barrier).
2) High resistance version for use with other approved supply modules (e.g. 8-fold
remote I/O from Company Stahl).

The maximum voltage and current values are determined by the permissible electri-
cal equipment.

Permissible ambient temperature range

The maximum permissible ambient temperature depends on the input power, tem-
perature class and the type of assembly. The relevant values should be taken from
the above tables.

At least IP 20 to EN 60529 (DIN VDE 0470 Part 1).

Type of protection

Version

Resistor

R20 [Ω]

Min. terminal

voltage [V]

Min. current

[mA]

Distinction

code

Versionor use with
300 Ω supply
module

320

9,3

29

01

High resistance
version

510

11,7

23

02

Version for type
8650

125

6,1

49

03

As an example, some pairs of values for the ignition protection type Ex ia are given
for the gas group IIC.

Coil Type G1 642 735 in ignition protection type intrinsically safe Ex ia IIC.

Voltage value [V] = Ui

15

18

20

22

25

28

30

35

Current value [A] = li

0.9

0.44

0.309 0.224 0.158 0.12

0.101 0.073