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CROMPTON TRIP RELAY ORDERING CODES 252 SERIES AC PROTECTOR TRIP RELAY.   A complete relay model number example:  252-PVOU-RMBX-C6-EA-S1-DE.  Some Options listed below effect published prices seen on other pages.   Choose the code from each group to complete the relay number PVOU=Function, RMBX=Input, C6=Frequency, EA= Relay action, S1=amount of time delay, DE= Auxiliary power supply.   Function PAOU=SINGLE PHASE OVER CURRENT PAUU=SINGLE PHASE UNDER CURRENT PVOU=SINGLE PHASE OVER VOLTAGE PVUU=SINGLE PHASE UNDER VOLTAGE PVHU=SINGLE PHASE OVER VOLTAGE WITH EXTERNAL TIME DELAY PVZU=SINGLE PHASE UNDER VOLTAGE WITH EXTERNAL TIME DELAY PVAU=3 PHASE 3 WIRE OVER VOLTAGE PVKU=3 PHASE 3 WIRE UNDER VOLTAGE PVCU=3 PHASE 3 WIRE OVER VOLTAGE WITH EXTERNAL TIME DELAY PVJU=3 PHASE 3 WIRE UNDER VOLTAGE WITH EXTERNAL TIME DELAY PVPU=3 PHASE 4 WIRE OVER VOLTAGE PVVU=3 PHASE 4 WIRE UNDER VOLTAGE PVSU=3 PHASE 4 WIRE OVER VOLTAGE WITH EXTERNAL TIME DELAY PVXU=3 PHASE 4 WIRE UNDER VOLTAGE WITH EXTERNAL TIME DELAY PHOU=OVER FREQUENCY PROTECTOR PHUU=UNDER FREQUENCY PROTECTOR PSFU=PHASE BALANCE PSGU=PHASE BALANCE w/UNDER V PROT. PVRU=PHASE SEQUENCE AND PHASE FAILURE   Specification SPEC. US STANDARD   Input PKBX=100 VOLTS L/L PMBX=110 VOLTS L/L POBX=115 VOLTS L/L PQBX=120 VOLTS L/L P7BX=127 VOLTS L/L RLBX=200 VOLTS L/L RMBX=208 VOLTS L/L R4BX=220 VOLTS L/L RQBX=230 VOLTS L/L RRBX=240 VOLTS L/L RSBX=250 VOLTS L/L R9BX=280 VOLTS L/L RUBX=380 VOLTS L/L SCBX=400 VOLTS L/L SBBX=415 VOLTS L/L SHBX=440 VOLTS L/L SDBX=450 VOLTS L/L DABX=460 VOLTS L/L SEBX=480 VOLTS L/L ZOBX=57.7 VOLTS L/N NXBX=63.5 VOLTS L/N ZIBX=66.4 VOLTS L/N PABX=69 VOLTS L/N Z4BX=69.3 VOLTS L/N PKBX=100 VOLTS L/N PMBX=110 VOLTS L/N POBX=115 VOLTS L/N PQBX=120 VOLTS L/N P7BX=127 VOLTS L/N RMBX=208 VOLTS L/N R4BX=220 VOLTS L/N RRBX=240 VOLTS L/N R6Bx=277 VOLTS L/N RWBX=288 VOLTS L/N346 VOLT   Relay VOLT FREE DRY CONTACT DP/DT   Frequency C4= 400Hz C5= 50Hz C6= 60Hz C7= 50/60Hz C8=45/65Hz   Relay EA= Energize (STD)- PVO/PVP ONLY EB=DE-Energize *** - PVO/PVP ONLY EA=RELAY Energize *** EB=RELAY DE-Energize (STD)   Option NT=NO TIME DELAY S1=TIME DELAY SET TO 10 SECONDS S2=TIME DELAY SET TO 20 SECONDS S3=TIME DELAY SET TO 30 SECONDS S4=TIME DELAY SET TO 1 SECOND S5=TIME DELAY SET TO 5 SECONDS S0=TIME DELAY SET TO ? SECONDS   Auxiliary AD=100 VOLTS 50HZ AE=110 VOLTS 50HZ AF=115 VOLTS 50HZ AG=120 VOLTS 50HZ AL=220 VOLTS 50HZ AM=230 VOLTS 50HZ AN=240 VOLTS 50HZ AW=415 VOLTS 50HZ AX=440 VOLTS 50HZ AY=480 VOLTS 50HZ   DE=110 VOLTS 60HZ DF=115 VOLTS 60HZ DG=120 VOLTS 60HZ DL=220 VOLTS 60HZ DM=230 VOLTS 60HZ DN=240 VOLTS 60HZ DP=277 VOLTS 60HZ DW=415 VOLTS 60HZ DX=440 VOLTS 60HZ DY=480 VOLTS 60HZ   FE=110 VOLTS 400HZ FF=115 VOLTS 400HZ FG=120 VOLTS 400HZ FL=220 VOLTS 400HZ FM=230 VOLTS 400HZ FN=240 VOLTS 400HZ FX=440 VOLTS 400HZ FY=480 VOLTS 400HZ BC=12 VOLTS DC BD=24 VOLTS DC NR=48 VOLTS DC PM=110 VOLTS DC PQ=120 VOLTS DC Z2=125 VOLTS DC Z1=135 VOLTS DC Option CT=CALIBRATION AT ? DEG. C SP=PRESET SET POINT AT ? TD=PRESET DELAY ? SECONDS