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 All Categories    Tyco Crompton Protector Trip Relays
Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
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Tyco Crompton Protector Trip Relays

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Crompton Protector Trip Relays

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  • Phase Loss, Reversal or Sequence
  • Under and Over Current or Voltage Protection
  • Load Detection
  • Monitoring of Systems
The Crompton Protectors provide continuous surveillance of the monitored circuit. When the current moves outside the set point limit, the relay operates. A red LED indicates when the relay is energized. For 3 phase systems, the sequence of connection is not important.

Standard overcurrent relays will energize on trip when the nominal input current plus the user adjustable “over nominal value” is exceeded, after the preset additional delay period if set. The relay will automatically reset to de-energize when the input current is lowered past the setpoint minus the hysteresis (differential) value.

Standard undercurrent relays will de-energize on trip when the input current is below the nominal value minus the user adjustable “under nominal value” after the preset additional delay period if set. The relay will automatically reset to energize when the input current is raised past the setpoint plus the hysteresis value.

On request, any product can be manufactured with the energize/de-energize functions reversed.

UL & CSA approved.


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  Results 1 - 52 of 52 1 

Item #

Type

System

Input

Protection

252-PAUU-LSBX-C6-DG-D1-EB AC Current Single Phase 5A Under current 40-120%
252-PAOU-LSBX-C6-DG-D1-EA AC Current Single Phase 5A Over current 40-120%
253-PADU-LSBX-C6-DG-D1-EC AC Current Single Phase 5A Under & over current
253-PAVU-LSBX-C6-DG-D1-EB AC Current 3 Phase 3 or 4 Wire 5A Under current
253-PAPU-LSBX-C6-DG-D1-EA AC Current 3 Phase 3 or 4 Wire 5A Over current
252-PVUU-PQBX-C6-EB AC Voltage Single Phase L-N N/A Under Voltage 75-100%
252-PVOU-PQBX-C6-EA AC Voltage Single Phase L-N N/A Over Voltage 100-125%
253-PVBU-PQBX-C6-EC AC Voltage Single Phase L-N N/A Over and Under Voltage
252-PVKU-PQBX-C6-EB AC Voltage 3 Phase, 3 Wire L-L N/A Under Voltage 75-100%
252-PVAU-PQBX-C6-EA AC Voltage 3 Phase, 3 Wire L-L N/A Over Voltage 100-12%
253-PVMU-PQBX-C6-EC AC Voltage 3 Phase, 3 Wire L-L N/A Over and Under Voltage
252-PVVU-PQBX-C6-EB AC Voltage 3 Phase, 4 Wire L-N N/A Under Voltage 75-100%
252-PVPU-PQBX-C6-EA AC Voltage 3 Phase, 4 Wire L-N N/A Over Voltage 100-12%
253-PVEU-PQBX-C6-EC AC Voltage 3 Phase, 4 Wire L-N N/A Over and Under Voltage
252-PVZU-PQBX-C6-EB-T1 AC Voltage Single Phase L-N N/A Under Voltage 75-100%
252-PVHU-PQBX-C6-EA-T1 AC Voltage Single Phase L-N N/A Over Voltage 100-12%
252-PVJU-PQBX-C6-EB-T1 AC Voltage 3 Phase, 3 Wire L-L N/A Under Voltage 75-100%
252-PVCU-PQBX-C6-EA-T1 AC Voltage 3 Phase, 3 Wire L-L N/A Over Voltage 100-12%
252-PVXU-PQBX-C6-EB-T1 AC Voltage 3 Phase, 4 Wire L-N N/A Under Voltage 75-100%
252-PVSU-PQBX-C6-EA-T1 AC Voltage 3 Phase, 4 Wire L-N N/A Over Voltage 100-12%
252-PHUU-PQBX-C6-EB Frequency Single Phase 120 VAC Under Frequency 55-65 Hz
252-PHOU-PQBX-C6-EA Frequency Single Phase 120 VAC Over Frequency 55-65 Hz
253-PHDU-PQBX-C6-EC Frequency Single Phase 120 VAC Under & Over (2 output relays)
256-PHUV-PQBX-C6 Combined Under/Over Voltage and Under/Over Frequency Single Phase 120V / 60 Hz (4 Independent Double Pole change over relays)
Over & Under Frequency (50-70 Hz)
Over & Under Voltage
252-PVRU-PQBX-C6 Phase Sequence & Phase Failure 3 Phase 3 or 4 Wire 120V L-L 60 Hz Phase Sequence, Under Voltage
252-PSFU-PQBX-C6 Phase Balance 3 Phase 3 or 4 Wire 120V L-L 60 Hz Phase Loss & Unbalance
252-PSFU-SEBX-C6 Phase Balance 3 Phase 3 or 4 Wire 480V L-L 60 Hz Phase Loss & Unbalance
252-PSGU-PQBX-C6-T1-1A Phase Balance 3 Phase 3 or 4 Wire 120V L-L 60 Hz Phase Loss, Unbalance, Under Voltage
252-PSGU-SEBX-C6-T1-1A Phase Balance 3 Phase 3 or 4 Wire 480V L-L 60 Hz Phase Loss, Unbalance, Under Voltage
256-PASU-LSBX-PQ-C6-EA Reverse Power 1 ph or 3 ph, 4w 5A, 120V, 60 Hz Reverse Power 2-20%
256-PATU-LSBX-PQ-C6-EA Reverse Power 3 Phase, 3 Wire 5A, 120V, 60 Hz Reverse Power 2-20%
256-PAQU-LSBX-PQ-C6-EA Reverse Power 1 ph or 3 ph, 4w, Push 5A, 120V, 60 Hz Reverse Power 2-20%
256-PARU-LSBX-PQ-C6-EA Reverse Power 3 ph 3w Push 5A, 120V, 60 Hz Reverse Power 2-20%
256-PLLU-PQBX-C6 Synchro-Check (Paralleling) 1ph or 3ph, 3w or 4w 120V/60 Hz Phase Angle & Voltage
256-PLDU-PQBX-C6 Synchro-Check (Paralleling) 1ph or 3ph, 3w or 4w 120V/60 Hz Phase Angle & Voltage
252-PBTU-ECBX-DG-T1-EA DC Millivolts/Thermocouple DC Millivolt 50 mV High Trip
252-PBSU-ECBX-DG-T1-EA DC Millivolts/Thermocouple DC Millivolt 50 mV Low Trip
252-PBTU-GBBX-DG-T1-EA DC Millivolts/Thermocouple DC Millivolt 100 mV High Trip
252-PBSU-GBBX-DG-T1-EA DC Millivolts/Thermocouple DC Millivolt 100 mV Low Trip
252-PTOU-TBX-DB-T1-EA DC Millivolts/Thermocouple Thermocouple J,K,T,S,T High Trip
252-PTUU-TBX-DB-T1-EB DC Millivolts/Thermocouple Thermocouple J,K,T,S,T Low Trip
252-PBAU-FABX-DG-T1-EB DC Transducer Trip Transducer 1 mADC Low Trip 0-80%
252-PBBU-FABX-DG-T1-EA DC Transducer Trip Transducer 1 mADC Hip Trip 40-120%
253-PBVU-FABX-DG-T1-EC DC Transducer Trip Transducer 1 mADC Low/High, 2 relays
252-PBAU-HGBX-DG-T1-EB DC Transducer Trip Transducer 4-20 mADC Low Trip 0-80%
252-PBBU-HGBX-DG-T1-EA DC Transducer Trip Transducer 4-20 mADC Hip Trip 40-120%
253-PBVU-HGBX-DG-T1-EC DC Transducer Trip Transducer 4-20 mADC Low/High, 2 relays
252-PBAU-MTBX-DG-T1-EB DC Transducer Trip Transducer 10 VDC Low Trip 0-80%
252-PBBU-MTBX-DG-T1-EA DC Transducer Trip Transducer 10 VDC Hip Trip 40-120%
253-PBVU-MTBX-DG-T1-EC DC Transducer Trip Transducer 10 VDC Low/High, 2 relays
253-PH3U-BGBX-FS-V2 Speed Sensing 5V to 75V peak to peak N/A 3 Trip Points
253-PH3U-BGBX-FS-V4 Speed Sensing 5V to 75V peak to peak N/A 3 Trip Points
  Results 1 - 52 of 52 1