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5.5 Electrical Connection of the Monitoring Devices
NOTE
In order to prevent potential nuisance alarms, Busch recommends that the control system
is configured with a time delay of at least 10 seconds.
5.5.1 Wiring Diagram Temperature Switch "Gas"
Part no.:
0651 563 747
Connector:
M12x1, 4-pin
U =
≤
250 V AC/DC (50/60 Hz) ; I =
≤
1 A
Switch point:
T
1
pin 1 + 2 = 110 °C
1
2
4
3
2
1
T
1
4
3
T
2
1 = Brown ; 2 = White ;
3 = Blue ; 4 = Black
5.5.2 Wiring Diagram Level and Temperature Switch
Part no.:
0652 563 748
Connector:
M12x1, 4-pin
U =
≤
230 V AC/DC (50/60 Hz) ;
I =
≤
0.5 A
Switch point:
L pin 1 + 4 = low level
T
1
pin 1 + 2 = 110 °C*
T
2
pin 1 + 3 = 130 °C*
1
2
4
3
4
1
L
2
1
T
1
3
1
T
2
1 = Brown ; 2 = White ;
3 = Blue ; 4 = Black
*
The switch point value depends on the oil type, see
Oil [
}
23]
.
5.5.3 Wiring Diagram Resistance Thermometer (Optional)
Part no.:
0651 563 753
Connector:
M12x1, 4-pin
U = 10 … 35 VDC
4 ... 20 mA
►
0 ... 150 °C
Warning / trip signals:
see
Oil [
}
23]
.
1
2
4
3
3
1
+
-
1 = Brown ; 3 = Blue
5.5.4 Wiring Diagram Pressure Switch (Optional)
Part no.:
0653 563 750
Connector:
M12x1, 4-pin
U =
≤
250 V AC/DC (50/60 Hz) ; I =
≤
4 A
Switch point:
P pin 1 + 2 = 0.6 bar (overpressure)
1
2
4
3
2
1
P
1 = Brown ; 2 = White
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