Burkert Type 6104 - Manual (Page 14)

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