89750147 Crouzet USA, 89750147 Datasheet - Page 143

• Manufacturer Part Number: 89750147
• Description: STAINLESS SLEEVE-MILL TEMP PRB
• Manufacturer: Crouzet USA

Specifications of 89750147

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For more information www.crouzet.com
R
S
Connections
F3US
T
Principles
F3US / F3USN
3,6
Dimensions
F3US / F3USN
F3US
B
B
C
D
L1 - L2 - L3 : 3-phase network being monitored
11 - 12 - 14 : Output relay (R1) lower threshold
21 - 22 - 24 : Output relay (R2) upper threshold
R2
R1
1
2
3
0
Auxiliary power supply
3-phase network
Upper threshold
Lower threshold
23
R
S
T
R
>
A1
12 14
3 ~
S
U
Tr
11
T1
100
R
1
<
T
77
R
S
T2
A2
T
12
11
5
14
T1
22
21
F3USN
45
24
B
Operating priciple
The two relays are energised when the measured voltages are between the minimum and
maximum thresholds which can be separately adjuste via two potentiometers on the front face.
If one or more voltages goes outside the window, the relay corresponding to the fault de-energises
following a delay which can be adjusted on the front face. The relays each have individual delays
(0.1 to 10 sec.).
A hysteresis fixed at 3 % ensures bounce-free relay switching when the voltage levels return to a
value between the upper and lower theresholds.
The unit is not affected by the phase sequence nor by harmonic distortion.
A green LED indicates the presence of the power supply voltage. Two yellow LEDs indicate when
the upper and lower thresholds have been exceeded.
The LEDs go out when the voltages are within the set window.
4,2
Auxiliary power supply
R
N
S
T
A1
12 14
11
R
1
R
R
S
N
T
S
N
F3USN
A2
T
R
N
>
3 ~
S
U
<
T
12
11
14
22
21
24
143
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