Approval/Certificate/Document of Conformity
IBExU Institut fOr Sicherheitstechnik GmbH
An-Institut der TU Bergakademie Freiberg
[13J
Schedule
[14] Certificate
number
IBExU14ATEX1050 [Issue 1
[15] Description of product
The junction boxes of type Klippon TB FS..., abbreviated as KTB FS..., Klippon TB MH ..., abbreviated
as KTB MH... and Klippon TB QL ..., abbreviated as KTB QL ... are made of coated or uncoated
stainless steel or coated mild steel. Additionally, they can contain gland plates made of the same
materials or brass. Alternatively, junction boxes can have a surface painting (thickness> 0.2 mm ...
s2mm).
The enclosure lid can be locked in different ways. At type FS, fixing screws are used; at type MH (multi
hinge), locking is realized by screws and hinges; and at type QL, a quarter lock is employed.
The junction boxes are intended for stationary use in zones 1 and 2 as well as 21 and 22. Optionally,
the junction boxes can be equipped with document holders, door stays and label holders as well as
metallic and non-metallic marking plates. Furthermore, the junction boxes feature connection of
flanges via gland plates, application of the cable transit system Roxtex and use of special flange
plates in combination with certified plug and socket connectors. The corresponding instructions of the
manufacturer's documentation shall be observed.
Technical data:
Ambient temperature:
Rated voltage:
Rated current:
Conductor cross section:
-60 'C to +40 'C (T6 resp., T80 'C)
-60 'C to +55 'C (T5 resp., T95 'C)
-60 'C to +90 'C (T4 resp., T135 'C)
max. 1100 V
max. 452 A
max. 300 mm
2
These values are maximum values. The actual electrical values are determined by the built-in
components
I
terminals. The manufacturer specifies the rated values in the context of these maximum
values and ensures compliance with the maximum surface temperature of the equipment and the
permissible operating temperature of the components
I
terminals. The actual rated values are
indicated on the individual marking plates and in the manufacturer's instructions.
Variations compared to issue x of this certificate:
Variation 1
Conformity with the current standards EN 60079-0:2012+A 11:2013, EN 60079-7:2015 und EN 60079-
31:2014
Variation 2
Additional variants of the junction box with surface painting (thickness > 0.2 mm ...
S
2 mm) for
explosion group liB and IIA
Variafion 3
Change of the maximum surface temperature of the junction box from T85'C to T80'C and from
T100'C to T95'C
Variafion 4
Corresponding change of explosion protection marking
Variafion 5
Removal of covered standard EN 60079-26, as EPL Ga for Ex "ia" equipment is fully covered by
EN 60079-11
[16] Test report
The test results are recorded in the confidentiai test report IB-16-3-145 of 2016-12-20.
The test documents are part of the test report and they are listed there.
III