Technical information

J-41
Above prices do not include VAT. E&OE
Function Phase failure / sequence relay Over / under voltage monitor (incorporating phase failure)
Model SF1 SF1/K V1E V3E V3E/N
Description of operation Therelaywillonlyoperatewhileallthreephasesarepresent
and in sequence.
Provideseffectiveprotectionofphasefailure/phasereversal/
excessivephaseand“UNDER”limitsandallimbalanceand
phaseangleerror.
SF1/Kwithsensitivityadjustment
singlephase3phase3phase+N
Monitorsownsupply.
Relaywillonlyoperatewhilsttehsupplyvoltageiswihtin
tehpresettable“OVER”and“UNDER”voltagelimitsandall
threephasespresentandinsequence.
Providingeffectivepowersupplysupervisionandprotection.
•Phasefailureprotection
•Phasereversalprotection
•Over/undervoltageprotection
Standard
Voltages
AC:110,230,400,525V±15% AC:110,230,400,525V±15%
Galvanic isolation
110,230,400,525Vareequippedwithinternaltransformer,providingeffectivegalvanicseparationofthe
electroniccircuitryfromsupplyvoltage(testvolts:2kV)
Monitoring parameters
Phasefailure/reversal/excessive
Phaseimbalanceandphaseangleerror.
Upper:+5÷+20%
Lower:-5÷-20%
ofnominalvoltage.
Phasefailure/reversal
A10secstart-updelayisincorporatedif8+10arenotbridged.If8+10
arebridgeda180sresponsedelayisenabledbybridgingpins8+9.
Hysteresis 2%fixed 5%fixed
General information Measuredvoltagesameassupply
Effectiveprotectionof“over”or“under”voltagecombinedwith
phasefailure/rev.
Contact rating
10A250Vac 10A250Vac
Consumption ±3VA ±3VA
Repeat accuracy
0.5%
Technical information SensitivitybeyondregeneratedEMF. Measuringrangeequalsthermsvalueofasinusoidalvoltage.
LED indication “Relayon”(phasesinsequence) “Overvolts”and“Undervolts”
Connection diagram
Price 330.00 342.00 476.00 492.00
Latch
facility
1
3
4
2
10
Supply
8
9
5
6
7
180s Response
Delay
11
Latch
facility
1
3
4
2
10
8
9
5
6
7
R
S
T
11
180s Response
Delay
Latch
facility
1
3
4
2
10
8
9
5
6
7
R
S
T
N
11
180s Response
Delay
1
3
4
2
10
8
9
5
6
7
R
S
T
11
1
3
4
2
10
8
9
5
6
7
R
S
T
11
1
3
4
2
10
8
9
5
6
7
R
S
T
11
400V
Monitoringdevices
525V