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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 | Подробное описание |
| REL52012 | Schneider official material code (стандартная модель) |
| REL52012C | Version with suffix “С”, 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)
| Модельный сегмент | Definition | Code Value | Подробное объяснение |
| P3U30 | Серия продуктов | 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 | 4л (3CT+1Io) ring-type terminals + 4ВТ (100В/110В) voltage input |
| 1 | Конфигурация ввода/вывода | 1 | 16DI/4DO (without watchdog) |
| BD | Communication Configuration | BD | Extended communication configuration |
| переменного тока | Цифровое входное напряжение + Коммуникационный интерфейс | переменного тока | ОТ: 110-230V AC/DC wide range; Двойные порты Ethernet RJ45 + Последовательный порт RS485 |
- Core Specification Parameter Table
| Категория параметра | Technical Specification | Примечания |
| Основная информация | ||
| Тип продукта | Universal Protection Relay | Suitable for feeder and motor protection applications |
| Standard REL Code | REL52012 (REL52012C is China version) | Official material part number |
| Электрические параметры | ||
| Напряжение питания | 48-230В переменного/постоянного тока | Wide voltage design compatible with global power grids |
| Measurement Input | 4л (3CT+1Io) ring terminals, 4ВТ (100В/110В) | Ring terminals ideal for high-current measurement |
| Цифровой вход (ОТ) | 16 каналы, 110-230V AC/DC wide range | Opto-isolated with strong anti-interference capability |
| Digital Output (ДЕЛАТЬ) | 4 каналы, relay output | Рейтинг контактов: 5А/250 В переменного тока |
| Communication Performance | ||
| Коммуникационный интерфейс | 2×RJ45 Ethernet ports + 1×RS485 serial port | Supports network redundancy and remote monitoring |
| Supported Protocols | Серийный: Модбус РТУ, МЭК 60870-5-101/103 | Fully compatible with industrial communication standards |
| Ethernet: МЭК 61850, Модбус TCP, DNP3, Ethernet/IP | ||
| Механический & Относящийся к окружающей среде | ||
| Размеры | 96×96×75mm | Standard panel mounting size |
| Тип монтажа | Panel mounting / Монтаж на DIN-рейку | Flexible for different control cabinet layouts |
| Рабочая температура | 0°C ~ 60°C | Industrial standard temperature range |
| Класс защиты | IP40 (Front Panel) | Suitable for installation inside control cabinets |
- Meaning of Suffix “С”
Суффикс “С” 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).
- Сертификация Адаптация: Specially certified for China market requirements (например. CCC certification) 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
| Сценарий применения | Основные преимущества | Adaptation Reason |
| Smart Substation (China Market) | Двойной Ethernet + МЭК 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 + multi-protocol support | 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.
- Функции защиты: Equipped with more than 40 protection functions including overcurrent, замыкание на землю, пониженное напряжение, phase sequence reversal, перегрузка, и т. д., complying with IEC 60255 стандартный.
- Обновление прошивки: Supports remote firmware upgrade via Ethernet port; RS485 port available for local upgrade.
- Accessory List:
Front connector: Standard 9-pin spring terminal
Кабель связи: RS485 shielded twisted pair (необязательный)
Ethernet cable: CAT5e/CAT6 industrial Ethernet cable (рекомендуется)
