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Operating Instructions CP MICROTHERM DBNA

Page 6 / 8

HOM146708235Ien-4

INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · 

 +49 9445 9532-0 ·   [email protected]

In  a  TT  or  TN  system,  a  residual  current  device  (RCD)
must  be  used  where  the  measured  triggering  residual
current  does  not  exceed  100  mA.  Residual  current
devices with a measured triggering residual current of 30
mA are preferable. In an IT system, an insulation monit-
oring  device  needs  to  be  used  which  switches  off  the
supply as soon as the insulation resistance is no greater
than  50  Ω  per  Volt  of  the  rated  voltage  (refer  also  to
ABNT NBR IEC 60079-14:2009).

ATTENTION:

Never remove the

adapter/ cable gland!

Illustration 3: 

Example heater with KLE connection

 CAUTION

NOTICE: Do not remove adapter/ cable connec-
tion to connect up the heater!

This would cause irreversible damage to the heater and
this would mean that the explosion protection can no
longer be warranted.

The illustration may deviate from the heater.

1

2

J

L
N
PE

J

J

J

Junction box

TAE

TS

Heater

Option AM

bn=brown bl=blue ye/gn=yellow/green bk=black gy=grey

bn

bl

ye/gn

bk

gy

Illustration 4: 

CP ..THERM with TAE

Summary of Contents for CP MICROTHERM DBNA

Page 1: ...Operating Instructions CP MICROTHERM DBNA HOM146708235Ien 4 05 02 2020...

Page 2: ...al 3 2 Use 3 3 Special conditions for safe use 3 4 Explanation of symbols for warnings and signal words 3 5 Safety information 4 6 Installation accessories 4 7 Technical Data 4 8 Installation 5 9 Conn...

Page 3: ...must be protected mechanically 2 If connection is made in the potentially explosive area the connecting lead shall be connected by means of an enclosure that meets the requirements of a type of protec...

Page 4: ...e of flat steel 1 Packet of screws containing the following 2 Hexagon bolts M 6x12 1 T head bolt type 28 15 M 6x15 2 M6 flat square nut 1 Washer shape A 6 4 2 Lock washers shape J 6 4 1 M6 hex nut If...

Page 5: ...be permanently installed up to the inlet into the on site junction box taking the per missible bending radius 5 x outer diameter into consid eration In the dust Ex area the applicable requirements of...

Page 6: ...sed which switches off the supply as soon as the insulation resistance is no greater than 50 per Volt of the rated voltage refer also to ABNT NBR IEC 60079 14 2009 ATTENTION Never remove the adapter c...

Page 7: ...f dust and harmful substances that could lead to excessive temperature rise In the dust Ex area the applicable requirements of ABNT NBR IEC 60079 17 and ABNT NBR IEC 60079 19 must be complied with 12...

Page 8: ...79 0 2013 Vers o Corrigida 2 2016 ABNT NBR IEC 60079 1 2016 ABNT NBR IEC 60079 31 2014 ABNT NBR IEC 60529 2005 Vers o Corrigida 2 2011 IEC 61000 6 4 2007 A1 2011 Designation NCC 17 0136 X Ex tb IIIC T...

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