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Operating Instructions SL BLOCKTHERM DB.A
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HOM146759307Ien-5
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany ·
+49 9445 9532-0 · [email protected]
short-circuit protection. When using a heater without in-
tegrated thermostat, the fuse protection can be selected
according to the cross-section of the supply cable.
Additional equipotential bonding is required. The ter-
minal block designated for this purpose has the ground
sign.
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 4:
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
L
N
PE
J
J
Junction
box
Heater
TAE
bn
bl
ye/gn
bk
gy
Option AM
bn=brown bl=blue ye/gn=yellow/green bk=black gy=grey
Illustration 5:
SL...THERM with TAE
