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IEC Temperature
Classification
Certification and
Conformity Details
Release 1
6/04
Equipment intended for installation directly within the hazardous location must also
be classified for the maximum surface temperature that can be generated under
normal or fault conditions as referenced to the maximum operating ambient of the
equipment. The maximum surface temperature must be less than the minimum auto-
ignition temperature of the hazardous atmosphere present. The temperature shall be
indicated in identification numbers as listed in the following table.
Maximum Temperature
Degrees C
450
300
200
135
100
85
Table 8 CENELEC / LCIE Certification
Code
Flameproof, Supply ≤ 45 Vdc, IP 66/67EEx d IIC T6.
3D
3A
Intrinsically Safe EEx ia IIC T5, −40 ≤ Ta ≤ 93°C.
Flameproof, Supply ≤ 45 Vdc, IP 66/67 EEx d IIC T6.
U
=
i
I
=
i
P
=
i
C
=
i
R
=
i
L
=
i
L
=
i
(1)
Install in accordance with Honeywell drawing 51204243.
34-ST-25-19 RMA 3000 Remote Meter Assemblies User Manual
Degrees F
842
572
392
275
212
185
Description
LCIE Intrinsic Safety Parameters
30 V
100 mA
1.2 W
4.2 nF
0
0
With no integral indicator, or with
integral Smart Meter, option SM.
150 µH
With Analog Meter, option ME.
Identification Number
T1
T2
T3
T4
T5
T6
(1)
41
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