Technical information

J-43
Above prices do not include VAT. E&OE
Function
Pump protection relay
Pump protection relay
Single phase Three phase
Model LP1 LP2 LP3
Description of operation
Economicpumpprotectionmoduleprovidingprotectionfrom:
•runningdry(underload)•lockedrotor(overload)•phasefailure/reversal.
Press“SET”undernormalpumpingconditions,andallparametersare
automaticallysettomonitorpump.Theprotectionrelaywilldisconnectthemotor
onmonitoringanyoftheabovealarmconditions.Adelayresetof6hrsisactivated
onmonitoringanyoftheaboveconditions(allowingboreholetorefillbefore
switchingbackon.)
Microprocessorpumpprotectionprovidingeffectiveprotectionfrom:
•runningdry(underload)•lockedrotor(overload)•phasefailure/reversal.Press
“SET”(frontmountedmembraneswitch)undernormalpumpingconditions.Pump
protectionisnowsetandwillmonitorunder/overload,phasefailure/reversal,and
willdisconnectthemotoronmonitoringanyoftheabove.Adelayreset1-8hrs
(reardipswitches)allowsborehole,etctimetorefillbeforeswitchingbackon.
Standards voltages AC:230,400,525V±15% AC:230V±15% AC:400V±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)
Motor size
0.25-0.55kW(singlephase230V)direct
 0.25-2.20kW(3phase400V)direct
 *largermotorsizecanbemonitoredbyutilisingconventional5AsecondaryCT
Monitoring parameters
Runningdry(underload)
Lockedrotor(overload)
Phasefailure/reversal
Under/overvoltage
Star/deltamonitoring
Calibration
Externaloperatingdevice
yes
yes
yes
yes
yes
automatic
yes
yes
yes
yes
yes
yes
automatic
yes
LED status indication “power”
“relayon”
“power”“relayon”
---overvoltage
-••undervoltage
•--overcurrent
•••undercurrent
•-•phase/failure
-•-safetyswitch
Reset time delay 6hrs(fixed)otherrangesavailable 1hr-2hr-4hr-8hr(selectableviarearmounteddipswitches)
General information automaticselfdiagnosticsofmotor automaticselfdiagnosticsofmotor
Contact rating 10A250Vac 10A250Vac
Consumption ±3VA ±3VA
Repeat accuracy
1% 1%
Other information
securityswitchPins8+9forconnectionoflevel,pressure,timeorstartswitch
Insulation
2kVbetweensupplyandoutputadjacentandadjacentcontacts
1kVbetweenopencontacts
Mechanical life
30millionoperations
Ambient limits
(operating)-20+60ºC
Type of duty
continuous(100%)
Response time
1sec
Connection diagram
Price 448.00 570.00 584.00
1
2
10
6
11
7
8
3
4
Security
switch
Alarm
output
RST
5A CT
1
3
4
2
10
6
7
9
8
11
R
Reset/Disable
Motor
starter
Supply
NL
5
Pump
Pressure Switch
Float Switch
Pump Start
Start/Stop
Reset
On/Off
LP1 230Vac
1
3
4
2
10
6
7
9
8
11
R
Reset/Disable
Motor
starter
Supply
L1 L2
L3
5
Pump
Pressure Switch
Float Switch
Pump Start
Start/Stop
Reset
On/Off
LP1 400Vac
1
3
4
2
10
6
7
9
8
11
R
Alarm
output
Security
switch
L
N
Motor
starter
Motor
Supply
LN
Pumpmonitoringprotection