Análise de diferença central entre P3U30-5AAA2BBAA e P3U30-5AAA2BBAC

Both models belong to the Schneider PowerLogic/Easergy P3U30 Series Relé de Proteção Universal. A principal diferença reside apenas nos dois últimos caracteres (AA x AC). The complete structure analysis is as follows:

2. Key Specification Comparison Table

3. Detailed Description of Differences

3.1 Digital Input Voltage Difference

P3U30-5AAA2BBAA (REL52002): Fixed digital input of 220V AC/DC, suitable for standard industrial control voltage environments.

P3U30-5AAA2BBAC (REL52008): Wide-range digital input of 110-230V AC/DC, compatible with more international standard voltages with higher flexibility.

3.2 Communication Capability Difference (Core Distinction)

P3U30-5AAA2BBAA: Equipped with only RS485 serial communication, suitable for simple point-to-point communication; does not support network integration or remote monitoring.

P3U30-5AAA2BBAC: Equipped with dual RJ45 Ethernet ports + Porta serial RS485, apoiando:

Redundant Ethernet communication (RSTP/PRP protocol)

CEI 61850 substation communication standard (Ed.1/Ed.2)

Modern industrial protocols such as Modbus TCP, DNP3, Ethernet/IP

Remote configuration, monitoring and firmware upgrade

3.3 Adaptação do Cenário de Aplicação

4. Recomendações de seleção
5. Communication Requirement Judgment

Local communication or simple SCADA connection only: Choose AA version (REL52002)

CEI 61850, remote monitoring or network redundancy required: Must choose AC version (REL52008)

2. Digital Input Voltage Adaptation

System unified with 220V control voltage: AA version fully compatible

Mixed 110V/220V control voltage or uncertain future demands: Choose AC version with wide-range input

3. Expansibilidade Futura

The dual Ethernet port design of AC version reserves space for future system upgrades and supports advanced smart grid applications.

5. Informações Complementares

Compatibilidade de Hardware: Both models have identical physical dimensions and mounting methods, enabling direct interchangeable installation.

Funções de proteção: Both provide more than 40 funções de proteção, incluindo sobrecorrente, falha de terra, subtensão, inversão de sequência de fase, etc., meeting feeder and motor protection requirements.

Certificações: Both comply with international standards such as IEC 60255 e PT 61850 for global market application.

Communication Interface Difference: P3U30-5AAA2BBAA vs P3U30-5AAA2BBAC

P3U30-5AAA2BBAA has only an RS485 serial port without Ethernet; P3U30-5AAA2BBAC retains RS485 and adds dual RJ45 Ethernet ports to support network communication.

1. Detailed Communication Interface Comparison

2. Key Difference Summary
3. AA Version: Pure serial port type

Only RS485 interface, limited to traditional RS485 bus networking; cannot connect to switches, access Ethernet, or support IEC61850.

2. AC Version: Hybrid type with serial port + dual Ethernet ports

Retains the original RS485 interface and adds 2 Portas RJ45, which can be directly connected to industrial switches, form ring networks, and support IEC61850 & Modbus TCP network communication.

3. Simple Selection Rule

Only RS485 communication for traditional cabinet internal connection → Choose P3U30-5AAA2BBAA

Require Ethernet, remote networking, smart substation or IEC61850 → Must choose P3U30-5AAA2BBAC

Schneider PowerLogic P3U30 Series Universal Protection Relay Model List

1. Regra de codificação do modelo (Full Interpretation)

The P3U30 series adopts the format P3U30-XXXXXXXX with 14 characters. The definition of each segment is as follows:

2. Lista completa de modelos (Classified by Communication Interface)

2.1 RS485 Serial Communication Only (Sem Ethernet)

2.2 Dual RJ45 Ethernet + RS485 Communication (Smart Type)

2.3 Modelos de configuração especial (Wide Temperature / Funções Estendidas)

3. Key Parameter Overview Comparison

4. Gráfico de seleção rápida (By Core Requirement)

5. Informações Complementares
6. Compatibilidade de Hardware: All P3U30 models share identical physical dimensions (96×96×75mm) and mounting methods (Trilho DIN / panel mounting) for direct interchangeable installation.
7. Funções de proteção: All models offer 40+ funções de proteção, incluindo sobrecorrente (EU>>), falha de terra (Ig), subtensão (Você<), inversão de sequência de fase, sobrecarga, etc., em conformidade com IEC 60255 padrão.
8. Certificações: Compatível com CE, UL, CSA, CEI 61850 and other international certifications for global market use.
9. Atualização de Firmware: Ethernet models support remote firmware upgrade; RS485 models require local upgrade.
10. Lista de acessórios:

Front Connector: Terminal de mola padrão de 9 pinos

Communication Cable: Par trançado blindado RS485 (opcional)

Ethernet Cable: Cabo Ethernet industrial CAT5e/CAT6 (Ethernet models only)