Protector Trip Relays - Crompton Instruments

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DC Millivolts and TransducerThe DC Millivolts and Transducer trip relay protectors providecontinuous surveillance of DC voltages or current signals. Whenthe input signals move outside the set point limits the relay willoperate and the fault LED will illuminate.Basic Parameters• Adjustable rated DC current input 0-1mA, 0-10mA, 4-20mA (PBV)• Adjustable rated DC voltage input 50mV, 75mV, 100mV (PBT/S)• Trip level adjustment Low 0-80% (Un)• Trip level adjustment High 80-120% (Un)• Adjustable trip delay 0.5-10s• Power on LED (green)Part no. Type ProtectionPBV DC transducer High 40-120% and low 0-80% tripPBT/S DC millivolts High 40-120% and low 0-80% tripOperationThe DC Millivolts and Transducer trip relay offers adjustable low and high trippoints (set points) and time delay settings. If the monitored signal exceeds eitherthe Low or High set point, the time delay is started and the red LED will illuminateto indicate a trip condition. When the time delay has elapsed, the relay willenergise. The relay will automatically reset once the monitor signal falls below theset point minus the differential set point. When reset the red LED will extinguishand the relay will de-energise.CharacteristicsPBVPBT/S22
DC Millivolts and TransducerTechnical parameters PBT/S-12/24 PBT/S-24/240 PBV-12/24 PBV-24/240• •DC millivolts tripDC transducer trip• •Supply terminalsA1, A2Input/monitoring terminalIN+, IN-Supply voltage 12-24V DC 24-240VAC/DC 12-24V DC 24-240VAC/DC (AC(AC 45-65Hz)45-65Hz)Supply voltage burden (max) 1W 3VA/0.9W 1W 3VA/0.9WSupply voltage tolerance +/-10%Rated input 50mV, 75mV, 100mV 0-1mA, 0-10mA, 4-20mAInput impedance 50kΩ -Voltage drop across input - 1V max. at 120% IinOver-range 40-120 %Uin 40-120 %IinUnder-range 0-80 %Uin 0-80 %IinDifferential Fixed at 1%Uin Fixed at 1%IinTrip time delayAdjustable 0.5 to 10sOverload capacitycontinuous 10 x Uin 3 x Iin1s max. - 10 x IinOutput relay-contact2x change over (AgNi) platedOutput relay-contact terminals 15, 16, 18 & 25, 26, 28Load capability of relay contact AC250V/8A, max.2 KVALoad capability of relay contact DC30V 8AMechanical life3x10 6 by rated loadElectrical life (AC1) 7 x 10 6ANSI no. 74Operating temperature-20 +55°CStorage temperature-30 +70°CElectric strength (supplying -4kV/1min.contact relay)Overvoltage categoryIII.Pollution degree 2Enclosure integrityIP40 from the front panel/IP20 terminalsEnclosure styleDIN-rail, 3 moduleCase materialFlame retardant polycarbonateConnecting conductors profile (mm 2 ) max.2x1.5mm 2 /1x2.5mm 2DimensionsH90xW52xD64mmWeight135g approxStandardsEN 60255-6, EN 60255-27, EN61000-6-2, EN6100-6-4Protector OverviewPBVPBT/SConnectionPBV, PBT/SSupplyvoltageInput- + (+) (-)IN- IN+ A1 A2RELAY CONTACTSUNDER OVERNC NO NC16 15 18 28 25 2623
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Protector Trip Relays - Crompton Instruments

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