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Building Technologies Division
CC1N7817en
24.02.2015
Electrical connection
The actuators must always be powered via a prefuse of max. 6.3 AT
(as per DIN EN 6012- 2/5)
For the protective earth connection, the housing of all variants has a marked
PE
connecting terminal. A tightening torque of 1.2 Nm must be observed for fitting the
screw
The supplied RAST3.5 connectors or RAST5 connectors must be used with screw
terminals for electrical connections. A tightening torque of 0.25 Nm must be
observed for fitting the screw
Note!
The connection of fuel valves is only permitted on fused output terminals, see chapter
Connection diagrams
. For this purpose, specific unit variants are available fitted with
a unit-internal, non-replaceable fuse. The unit-internal fuse is used to protect each
switching contact from welding in the event of external short-circuit. In addition,
please note that the maximum current load for the fused output terminals is reduced,
see chapter
Connection diagrams
.
Marking of the SQM40... / SQM41... connection areas:
X1
S
E
LV
/
P
E
LV
X2
M
a
in
s v
o
lta
ge r
ange
SQM4x.x1xxxx
SQM4x.x2xxxx
SQM4x.x4xxxx
SQM4x.x5xxxx:
X1
, X2
, X3
M
a
in
s vo
lta
ge
r
an
g
e
7817z09e/0315
SQM4x.x3xxxx
SQM4x.x6xxxx
SQM4x.x7xxxx
SQM4x.x8xxxx:
Note
SELV or PELV depends on the safety class of the connected components. In the
case of PELV, the relevant component is connected to protective earth.