4
Electrical connection
DANGER!
Risk of electric shock!
–
For electrical installations, you are re-
quired to observe the regulations con-
cerning electrical power installations ac-
cording to DIN VDE 0100 as well as the
regulations of your local power supplier.
–
Use a suitable power supply to ensure
that no dangerous voltages from the sys-
tem or parts of the system reach the
thermostat in standard operation or in
case of a fault.
–
Connect the thermostat at the PE terminal
to the ground wire. This wire must have
at least the same cross section as the
supply cable.
–
The wires of double thermostats are
routed through the opening in the inter-
mediate wall to the second thermostat.
Seal the opening not used for cable entry
with a blanking cap.
Cable entry
Route the wires through the cable gland
(M20 x 1.5) into the inside of the thermo-
stat.
The spring-clamp terminals are designed for
a wire cross-section of 0.75 to 2.5 mm².
Wiring the thermostat
Open the thermostat housing and wire the
thermostat according to Fig. 5:
4
Rigid wire ends:
Strip 11 to 13 mm insu-
lation off the cable and place it into the
terminal point (
) as far it will go.
4
Flexible wire ends without ferrules:
Use
a slotted screwdriver to keep the spring
open (in
) and place the wire ends
into the terminal point (
) as far they
will go.
4
Flexible wire ends with ferrules:
Fit
ferrule to wire ends. Refer to
EN 60947-1.
Use a suitable crimping
tool!
Place the wire ends into the terminal
point (
) as far they will go.
Note:
The wire ends can be pulled out by
holding the spring open with a slotted
screwdriver (in
).
12
EB 5206 EN
Electrical connection
Fig. 5 · Electrical wiring
NC contact
1 – 2
NO contact
1 – 4
1
4
2
Temperature
Regulator (TR),
Safety Temperature
Monitor (STM)
1
4
2
Safety Temperature
Limiter (STL)
Содержание STL 5345
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