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- Core Model Correspondence
REL52012C is a specific model of Schneider PowerLogic/Easergy P3U30 Series Universal Protection Relay. Its standard part number is REL52012, and the corresponding complete product reference code is: P3U30-5ABA1BDAC
| Marking | Descriere detaliată |
| REL52012 | Schneider official material code (standard model) |
| REL52012C | Version with suffix “C”, generally refers to China market version or specific production batch |
| P3U30-5ABA1BDAC | Full product reference code containing all configuration information |
- Full Model Code Decoding (P3U30-5ABA1BDAC)
| Segmentul de model | Definiţie | Code Value | Detailed Explanation |
| P3U30 | Seria de produse | P3U30 | Universal protection relay for feeder and motor protection |
| 5 | Power Supply Type | 5 | 48-230V AC/DC wide-range power supply |
| ABA | Measurement Input Configuration | ABA | 4L (3CT+1Io) ring-type terminals + 4VT (100V/110V) voltage input |
| 1 | Configurare I/O | 1 | 16DI/4DO (without watchdog) |
| BD | Communication Configuration | BD | Extended communication configuration |
| AC | Digital Input Voltage + Interfață de comunicare | AC | DIN: 110-230V AC/DC wide range; Dual RJ45 Ethernet ports + RS485 serial port |
- Tabelul parametrilor specificațiilor de bază
| Categoria parametrilor | Technical Specification | Observații |
| Informații de bază | ||
| Tip de produs | Universal Protection Relay | Suitable for feeder and motor protection applications |
| Standard REL Code | REL52012 (REL52012C is China version) | Official material part number |
| Parametrii electrici | ||
| Tensiune de alimentare | 48-230V AC/DC | Wide voltage design compatible with global power grids |
| Measurement Input | 4L (3CT+1Io) ring terminals, 4VT (100V/110V) | Ring terminals ideal for high-current measurement |
| Intrare digitală (DIN) | 16 canale, 110-230V AC/DC wide range | Opto-isolated with strong anti-interference capability |
| Ieșire digitală (DO) | 4 canale, relay output | Evaluarea contactului: 5A/250V AC |
| Communication Performance | ||
| Interfață de comunicare | 2×RJ45 Ethernet ports + 1×RS485 serial port | Supports network redundancy and remote monitoring |
| Supported Protocols | Serial: Modbus RTU, IEC 60870-5-101/103 | Fully compatible with industrial communication standards |
| Ethernet: IEC 61850, Modbus TCP, DNP3, Ethernet/IP | ||
| Mecanic & Environmental | ||
| Dimensiuni | 96×96×75mm | Standard panel mounting size |
| Tip de montare | Panel mounting / Montare pe șină DIN | Flexible for different control cabinet layouts |
| Temperatura de operare | 0°C ~ 60°C | Industrial standard temperature range |
| Clasa de protectie | IP40 (Front Panel) | Suitable for installation inside control cabinets |
- Meaning of Suffix “C”
Sufixul “C” in REL52012C mainly indicates:
- Regional Version Identifier: Usually stands for dedicated version for China market, optimized in configuration for China power grid standards.
- Manufacturing Information: Produced by Schneider’s local factory in China (SSIC).
- Certification Adaptation: Specially certified for China market requirements (de ex. Certificare CCC) to comply with Chinese national standards.
REL52012C and standard REL52012 are completely identical in core functions and technical parameters, differing only in sales region, certification and manufacturing origin.
- Application Scenario Recommendation
| Scenariul aplicației | Avantajele de bază | Adaptation Reason |
| Smart Substation (China Market) | Dual Ethernet + IEC 61850 support | Complies with China smart grid standards and facilitates system integration |
| Feeder Automation System | 4L ring terminals + extended communication | Adapts to high-current measurement; supports remote monitoring and fault diagnosis |
| Industrial Power Distribution System | Wide-range DI voltage + suport multi-protocoal | Fits complex factory voltage environments; compatible with various PLC and SCADA systems |
| International Projects (China Region) | China certified version + global standard compatibility | Meets local compliance requirements while supporting international communication protocols |
- Supplementary Information
- Hardware Compatibility: Fully consistent in physical dimensions and mounting method with all P3U30 series models; direct interchangeable installation available.
- Funcții de protecție: Equipped with more than 40 protection functions including overcurrent, defect la pământ, subtensiune, phase sequence reversal, suprasarcina, etc., complying with IEC 60255 standard.
- Actualizare firmware: Supports remote firmware upgrade via Ethernet port; RS485 port available for local upgrade.
- Lista de accesorii:
Front connector: Standard 9-pin spring terminal
Communication cable: RS485 shielded twisted pair (opțional)
Ethernet cable: CAT5e/CAT6 industrial Ethernet cable (recomandat)
