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  Information
 Crompton Protector Trip Relays.  Model 252,253,256 and 262
 
Crompton Trip Relays provide continuous surveillance of monitored circuit.
When values move outside the zone limit, relays operate giving double pole
contact transfer protection for alarm control or tripping functions.
Trip relay Ordering Codes      Trip Rely Data Sheet
              Crompton  DIN Rail Mount             Crompton          Panel Mount
AC VOLTAGE Trip  Relay        
SINGLE PHASE 120V L-N UNDER VOLTAGE 75-100% 252-PVUU-PQBX-C6-EB •/+ $148.20
    OVER VOLTAGE 100-125% 252-PVOU-PQBX-C6-EA •/+ $148.20
    OVER & UNDER VOLTAGE (2 Output Relays) 253-PVBU-PQBX-C6-EC •/+ $199.68
3 PHASE 3 WIRE 120V L-L UNDER VOLTAGE 75-100% 252-PVKU-PQBX-C6-EB •/+ $148.20
    OVER VOLTAGE 100-125% 252-PVAU-PQBX-C6-EA •/+ $148.20
    OVER & UNDER VOLTAGE (2 Output Relays) 253-PVMU-PQBX-C6-EC •/+ $244.40
3 PHASE 4 WIRE 120V L-N UNDER VOLTAGE 75-100% 252-PVVU-PQBX-C6-EB •/+ $171.08
    OVER VOLTAGE 100-125% 252-PVPU-PQBX-C6-EA •/+ $17108
    OVER & UNDER VOLTAGE (2 Output Relays) 253-PVEU-PQBX-C6-EC •/+ $259.50
AC VOLTAGE Trip Relay (Including Adjustable Time Delay)      
SINGLE PHASE 120V L-N UNDER VOLTAGE 252-PVZU-PQBX-C6-EB-T1   $178.88
    OVER VOLTAGE 252-PVHU-PQBX-C6-EA-T2   $178.88
3 PHASE 3 WIRE   UNDER VOLTAGE 252-PVJU-PQBX-C6-EB-T1   $178.88
    OVER VOLTAGE 252-PVCU-PQBX-C6-EA-T2   $178.88
3 PHASE 4 WIRE L-N UNDER VOLTAGE 252-PVXU-PQBX-C6-EB-T1   $201.76
    OVER VOLTAGE 252-PVSU-PQBX-C6-EA-T1   $201.76
AC VOLTAGE (PANEL MOUNT)        
SINGLE PHASE 120V L-N UNDER VOLTAGE 75-100% 262-PVUU-PQBX-C6-EB   $148.20
    OVER VOLTAGE 100-125% 262-PVOU-PQBX-C6-EA   $148.20
3 PHASE 3 WIRE 120V L-L UNDER VOLTAGE 75-100% 262-PVKU-PQBX-C6-EB   $148.20
    OVER VOLTAGE 100-125% 262-PVAU-PQBX-C6-EA   $148.20
3 PHASE 4 WIRE 120V L-N UNDER VOLTAGE 75-100% 262-PVVU-PQBX-C6-EB   $171.08
    OVER VOLTAGE 100-125% 262-PVPU-PQBX-C6-EA   $171.08
AC CURRENT Trip Relay        
SINGLE PHASE 5A   UNDER CURRENT 40-120% 252-PAUU-LSBX-C6-DG-D1-EB •/+ $176.80
    OVER CURRENT 40-120% 252-PAOU-LSBX-C6-DG-D1-EA •/+ $176.80
    UNDER & OVER CURRENT (2 Output Relays) 253-PADU-LSBX-C6-DG-D1-EC •/+ $258.96
3 PHASE 3 OR 4 WIRE UNDER CURRENT 40-120% 253-PAVU-LSBX-C6-DG-D1-EB •/+ $304.20
5A CT RATING   OVER CURRENT 40-120% 253-PAPU-LSBX-C6-DG-D1-EA •/+ $304.20
AC CURRENT Trip Relay (PANEL MOUNT)        
SINGLE PHASE 5A   UNDER CURRENT 40-120% 262-PAUU-LSBX-C6-DG-D1-EB   $176.80
    OVER CURRENT 40-120% 262-PAOU-LSBX-C6-DG-D1-EA   $176.80
3 PHASE 3 OR 4 WIRE UNDER CURRENT 262-PAVU-LSBX-C6-DG-D1-EB   $304.20
5A CT RATING   OVER CURRENT 262-PAPU-LSBX-C6-DG-D1-EA   $304.20
FREQUENCY  Trip Relay        
SINGLE PHASE 120V 60Hz UNDER FREQUENCY 55-65-Hz 252-PHUU-PQBX-C6-EB •/+ $208.00
(50Hz OPTION)   OVER FREQUENCY 55-65Hz 252-PHOU-PQBX-C6-EA •/+ $208.00
    UNDER & OVER (2 Output Relays) 253-PHDU-PQBX-C6-EC •/+ $281.84
FREQUENCY (PANEL MOUNT)        
SINGLE PHASE 120V 60Hz UNDER FREQUENCY 55-65-Hz 262-PHUU-PQBX-C6-EB   $208.00
(50Hz OPTION)   OVER FREQUENCY 55-65Hz 262-PHOU-PQBX-C6-EA   $208.00
COMBINED VOLTAGE & FREQUENCY Trip Relay      
SINGLE PHASE 120V 60Hz OVER & UNDER VOLTAGE 256-PHVU-PQBX-C6   $531.44
(50Hz OPTION)   OVER & UNDER FREQUENCY (50-70Hz)      
    (4 independent double pole change over relays;    
    fixed differential and adjustable time delay)    
REVERSE POWER trip Relay        
SINGLE PHASE OR 3 Ph 4 W REVERSE POWER 2-20% 256-PASU-LSBX-PQ-C6-EA •/+ $250.12
3 PHASE 3 WIRE   REVERSE POWER 2-20% 256-PATU-LSBX-PQ-C6-EA •/+ $302.12
SINGLE PHASE or 3Ph 4W PUSH TO TEST REVERSE POWER 2-20% 256-PAQU-LSBX-PQ-C6-EA •/+ $316.68
3 PHASE 3 WIRE PUSH TO TEST REVERSE POWER 2-20% 256-PARU-LSBX-PQ-C6-EA •/+ $316.68
PARALLELING Trip Relay        
SINGLE PHASE or 3 PHASE 3 or 4 WIRE L/N PHASE ANGLE & VOLTAGE FOR: 2 LIVE BUS 256-PLLU-PQBX-C6 •/+ $244.40
(SPECIFY 60 OR 50 HZ) DEAD BUS 256-PLDU-PQBX-C6 •/+ $274.04
SPEED SENSING (SPECIFY RUNNING SPEED, # OF TEETH ON FLYWHEEL SPEEDS) Specify 12 or 24VDC    
5V TO 75V PEAK TO PEAK 3 TRIP POINTS, AUX SUPPLY Specify 253-PH3U-BGBX-FS-V2 • $294.84
    4 TRIP POINTS, AUX SUPPLY Specify 253-PH3U-BGBX-FS-V4 • $294.84
• = UL Recognized - File # E113067 + = CSA Approval - File # LR52592      
SYSTEM PROTECTION CATALOG NUMBER UL/CSA PRICE
ACCESSORIES (For Speed Sensing Relays)        
MAGNETIC SPEED SENSOR, STD LENGTH 1.125", THREAD 5/8-18UNF CMS3010AN   $61.96
MAGNETIC SPEED SENSOR, LONG REACH 4.00" THREAD 5/8-18UNF CM3010AN40   $93.60
MATING OUTPUT CONNECTOR & CLAMP - 2 PIN (*4) OR 3 PIN (*3) SPECIFY* CMS3106-10SL-*S   $26.00
DC TRANSDUCER TRIP Relay (**SPECIFY UNIT)      
1, 5, 10 OR 4-20mA OR LOW TRIP (FALLING SIGNAL) 0-80% 252-PBAU-**BX-DG-T1-EB •/+ $193.44
1 TO 50 VOLTS (1000 OHM/VOLT) HIGH TRIP (RISING SIGNAL) 40-120% 252-PBBU-**BX-DG-T1-EA •/+ $193.44
120V AC AUX STD LOW & HIGH (2 OUTPUT RELAYS) 252-PBVU-**BX-DG-T1-EC •/+ $266.24
DC VOLTAGE Trip Relay        
18-20V DC UNDER VOLTAGE, WITH EXTERNAL TIME DELAY 252-PDUU-NABX-T1-EB   $255.84
18-20V DC UNDER VOLTAGE, WITH EXTERNAL DIFFERENTIAL 252-PDEU-NABX-EB   $255.84
24V DC OVER & UNDER VOLTAGE (2 OUTPUT RELAYS) with External Time Delay 253-PDCU-BDBX-T1-EC-BD   $370.24
DC MILLIVOLT TRIP Relay
50 OR 100mV (SHUNTS) HIGH TRIP, 50mV INPUT 252--PBTU-ECBX-DG-T1-EA •/+ $192.40
120V AC AUX STD LOW TRIP, 50mV INPUT 252-PBSU-ECBX-DG-T1-EB •/+ $192.40
  HIGH TRIP, 100mV INPUT 252-PBTU-GBBX-DG-T1-EA •/+ $192.40
  LOW TRIP, 100mV INPUT 252-PBSU-GBBX-DG-T1-EB •/+ $192.40
THERMOCOUPLES J, K, R, S OR T HIGH TRIP, THERMOCOUPLE INPUT 252-PTOU-T*BX-DG-T1-EA • $221.52
(10mV MIN, 50mV MAX) T *SPECIFY TYPE AND TEMP. RANGE      
  LOW TRIP, THERMOCOUPLE INPUT 252-PTUU-T*BX-DG-T1-EB • $221.52
  T *SPECIFY TYPE AND TEMP. RANGE      
HOT SPOT RELAY
SPECIFY 100 OHM PLATINUM = R2, 120 OHM NICKEL = R3
OR 10 OHM COPPER = R1
    
3 RTD INPUTS 3 TRIP POINTS 256-PRAU-R*BX-DG-RO-LI • $958.88
120V AC AUX STANDARD 2 TRIP POINTS 256-PRBU-R*BX-DG-RO-LI • $921.44
UNIT IDENTIFIES HOTTEST RTD 1 TRIP POINTS 256-PRCU-R*BX-DG-RO-LI • $885.56
OMIT LED's & ADD TERMINALS
  OPTIONAL INDICATING INSTRUMENTS 077-05KA-FA** • $486.72
6 RTD INPUTS 1 PRESET TRIP POINT 80-180 DEG. C 256-PCCU-R*BX-DG • $958.88
PHASE SEQUENCE/LOSS Relay        
3 PHASE 3 or 4 WIRE (Specify 50 or60Hz) PHASE SEQUENCE, UNDER VOLTAGE,     120V L-L             252-PVRU-PQBX-C6 •/+ $111.28
PHASE BALANCE Trip Relay
3 PHASE 3 or 4 Wire PHASE LOSS & UNBALANCE, 120V L-L 252-PSFU-PQBX-C6 •/+ $152.88
(SPECIFY 50 or 60Hz) PHASE LOSS & UNBALANCE, 480V L-L 252-PSFU-SEBX-C6 •/+ $183.56
  PHASE LOSS, UNBAL, UNDERVOLTAGE, 120V L-L 252-PSGU-PQBX-C6-T1-IA •/+ $181.48
  PHASE LOSS, UNBAL, UNDERVOLTAGE, 480V L-L 252-PSGU-SEBX-C6-T1-IA •/+ $212.16
THERMISTOR TRIP RELAY        
P.T.C. THERMISTOR 120V AC AUX STD. MANUAL RESET 252-PMMU-STBX-DG •/+ $206.44
1500 OHM MAX AT NORMAL TEMPS AUTOMATIC RESET 252-PMTU-STBX-DG • $126.88
SYSTEM VOLTAGE OPTIONS        
120V AC PQ N/C
208V AC RM N/C
220V AC R4 $31.20
240V AC RR $31.20
480V AC SE $31.20
Trip Relay EXTERNAL POWER SUPPLY OPTIONS (see note blow)      
120vV AC 60Hz DG $31.20
240V AC 60Hz DN $31.20
12V DC BC $44.72
24V DC BD $44.72
48V DC NR $44.72
125V DC BI $48.88
NOTE: DC Power Supply Option not available on HOT SPOT 3, 6, Reverse Power, Paralleling,, Phase Balance, Sequence,  262 Panel Mount Protectors
Non Standard Settings add $28.50 Time Delay  add $28.50 (per Relay) Input Frequencies: 50Hz Code C5 N/C Input Frequencies: 400Hz CodeC4 add$22.00
Input Current: 1A code LA Input Current: 10A Code MT. 120V AC Aux Power Supply no charge when required    
• = UL RECOGNIZED-WHERE APPLICABLE UP TO 300V AC, 252-PSF/PSG UP TO 600V AC CONSULT FACTORY FOR OTHER OPTIONS
+ = CSA APPROVED-WHERE APPLICABLE UP TO 240V AC, 252-PSF/PSG UP TO 600V AC CONSULT FACTORY FOR OTHER OPTIONS
ORDERING INFORMATION: FOR INPUT OPTIONS OR EXTERNAL POWER SUPPLY OPTIONS SUBSTITUTE CODE IN CATALOG NUMBER WITH CODE. DESIRED. EXAMPLE: 253-PVMU-RRBX-C5-EC