Burkert 8400 Manuel D'instructions page 28

7 ANNEX
NO (Normally Open)
connection:
controller type 8400
(relay version) and a
solenoid valve.
NC (Normally
Closed) connection:
controller type 8400
(relay version) and a
solenoid valve.
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8400
1
4 3
5
3
1 2
1A 3A
+ -
+ -
24 V=
250 VAC
8400
1
3
4
5
3
1 2
3A
1A
+ -
+ -
24 V=
250 VAC
Temperature Controller 8400
2
Protection
circuit *
2
Protection
circuit *
* Protection must be installed by the
user depending on the load, for
instance, a connector DIN43650 with
integrated varistor.
Solenoid
valve (or alarm);
+
250 VAC,
-
3 A max.
Solenoid
+
valve (or alarm);
-
250 VAC,
3 A max.