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Schneider Electric REL52052

Schneider Electric REL52052

MPNREL52052
Obsolete

Square D REL52052 P3U20-6Aaa2Ahab 2Xrj|Square D REL52052 P3U20-6Aaa2Ahab,2Xrj

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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

REL52052 key specifications
ParameterValue
Display typeLCD 128 x 64 pixels with single line diagram LCD 128 x 64 pixels with ANSI symbols
Range of productPowerLogic P3
Product or component typeProtection relay
Switchgear diagnosis typeCT supervision Trip circuit supervision TCS
Climatic withstandExposure to dry heat Bd EN/IEC 60068-2-2 Exposure to cold Ad EN/IEC 60068-2-1 Exposure to damp heat in service Db EN/IEC 60068-2-30 Exposure to damp heat in service Cab EN/IEC 60068-2-78
Power supply48...230 V AC/DC
IP degree of protectionIP54 IEC 60529
Communication portsFront USB port 1 Rear RJ45 2
Communication protocolsIEC 61850 ed. 1 IEC 61850 ed. 2 IEC 60870-5-101 DNP3 TCP Modbus TCP EtherNet/IP
Time synchronisation protocolSNTP
Redundancy communication port protocolRSTP PRP
Device mountingFlush

All specifications

REL52052 additional specifications
ParameterValue
Mounting case size20TE
Connections - terminalsScrew removable (digital input/output) Pin removable (current transformer) Pin removable (voltage transformer)
Relative humidity0...95 %, without condensation
Maximum operating altitude6561.68 ft (2000 m)
Depth8.07 in (205 mm)
Width6.7 in (170 mm)
Height6.7 in (169.5 mm)
CategoryUS1PL1S11405
Web serverEmbedded HTTP server
CybersecurityPassword protection Port hardening
Number of key2 customizable
Local signalling4 LEDs 8 LEDs programmable
Logs and recordsEvent recording Disturbance recording Tripping context
Measuring inputs3 1/5 A CT phase current 1 1/5 A CT residual current 1 100 V/110 V VT voltage
Control functionsSwitchgear control and monitoring Programmable switchgear interlocking Local control on single-line diagram Local control with I/O keys Local/remote control 2 function keys Mobile application with Easergy SmartApp Web-server
Number of sensors0 temperature sensor(s) 0 arc sensor(s)
Product referenceP3U20-6AAA2AHAB
Relay applicationUniversal
Operating threshold110 V AC/DC
Arc flash protectionNo
Monitoring functionsTrip circuit supervision 74 Circuit breaker monitoring Relay self-monitoring
Protection functionsPhase overcurrent 50/51 Earth fault overcurrent 50N/51N Directional earth fault 67N Transient earth fault 67NI Capacitor bank unbalance 51C Broken conductor 46 I2/I1 Cold load pick-up H2 detection 68H2 H5 detection 68H5 Breaker failure 50BF Switch ON to fault (SOTF) Recloser 79 Phase undercurrent 37 Excessive starting time, locked rotor 48/51LR Motor restart inhibition 66 Capacitor overvoltage 59C Negative sequence overcurrent 46 Earth fault overvoltage 59N Rate of change of frequency 81R Lockout relay 86 CT supervision 60 Programmable stages 99 Programmable curve
Protective treatmentConformal coating
Measurement functionsCurrent 3-phase Current zero sequence Current positive sequence Current negative sequence Current ratio of negative and positive Voltage zero sequence Earth fault reactance Frequency Current phasor diagram view Current 2nd, 15th harmonics with THD Condition monitoring CB wear
Mechanical robustnessVibrations class II) IEC 60255-21-1 VibrationsFc IEC 60068-2-6 Shocks class II) IEC 60255-21-2 ShocksEa IEC 60068-2-27 Seismic tests method A class II) IEC 60255-21-3
Number of setting groups4
Number of analogue inputs0
Number of analogue outputs0
Electromagnetic compatibilityEmission tests IEC/EN 60255-26 ed. 3 Emission tests CISPR 11 Emission tests CISPR 22 EMC immunity IEC/EN 60255-26 ed. 3 EMC immunity EN/IEC 61000-4-18 EMC immunity IEC 60255-22-1 EMC immunity level 4 EN/IEC 61000-4-2 EMC immunity IEC 60255-22-2 EMC immunity level 3 EN/IEC 61000-4-3 EMC immunity IEC 60255-22-3 EMC immunity level 4 EN/IEC 61000-4-4 EMC immunity IEC 60255-22-4 EMC immunity level 3 EN/IEC 61000-4-5 EMC immunity IEC 60255-22-5 EMC immunity level 3 EN/IEC 61000-4-6 EMC immunity IEC 60255-22-6 EMC immunity EN/IEC 61000-4-8 EMC immunity level 5 EN/IEC 61000-4-9 EMC immunity EN/IEC 61000-4-29 EMC immunity EN/IEC 61000-4-11 EMC immunity EN/IEC 61000-4-17 EMC immunity IEC 60255-27 EMC immunity class III IEC 60255-5 EMC immunity EN/IEC 60255-1
Number of digital inputs8
Number of digital outputs8 DO 1 watchdog
Controllable switchgear devices4 controlled + 4 displayed
Ambient air temperature for storage-40...158 °F (-40...70 °C)
Ambient air temperature for operation-40...149 °F (-40...65 °C)
MPN
REL52052