ABB NBRA-658C
Here is the professional English introduction to the **ABB NBRA-658C** relay module:
### **1. Product Overview**
The ABB NBRA-658C is a **digital protection relay** from ABB's Relion® **650 Series**, specifically designed for medium and low-voltage power distribution systems to provide precise electrical protection and monitoring functions.
### **2. Key Specifications**
| **Feature** | **Specification** |
|------------------------|----------------------------------------------------------------------------------|
| **Rated Voltage** | 24-250V AC/DC (wide-range power input) |
| **Rated Current** | 1A / 5A (configurable for CT secondary side) |
| **Protection Functions** | Overcurrent, ground fault, short-circuit, over/under voltage, frequency protection, etc. |
| **Communication Interfaces** | - RS485 Modbus RTU<br>- IEC 61850 (optional)<br>- Ethernet (requires expansion module) |
| **Environmental Resistance** | Operating temperature: -25°C ~ +70°C<br>Protection class: IP20 (panel-mounted) |
| **Mechanical Life** | >100,000 operations |
### **3. Core Features**
- **All-in-One Protection**
Integrates 10+ protection functions with customizable logic programming (via PCM600 software).
- **High-Precision Measurement**
- Real-time monitoring of current, voltage, power, energy, etc.
- Accuracy class: 0.5 (measurement) / 5% (protection)
- **Smart Communication**
Supports IEC 61850 for SCADA system integration, enabling remote monitoring and fault recording.
- **User-Friendly Design**
- 5.7-inch color LCD display (supports Chinese/English)
- Front-panel key operation + password protection
### **4. Typical Applications**
- **Industrial Power Distribution**
Main incoming & bus-tie protection in factories
- **Renewable Energy**
Grid protection for PV plants & wind farms
- **Critical Infrastructure**
Backup power protection for hospitals/data centers
- **Mining & Marine**
Electrical system protection in high-vibration environments
### **5. Installation & Configuration**
- **Mounting**
Standard 35mm DIN rail mounting (depth: 145mm only)
- **Configuration Tool**
ABB PCM600 software (for parameter setting & fault analysis)
### **6. Certifications & Standards**
- **International Standards**
IEC 60255, UL 508, CE, CCC
- **Industry Certifications**
DNV GL (marine), ATEX (optional for explosive environments)
### **7. Selection Notes**
- Must be used with ABB SPAJ series CTs/PTs
- EMC filter recommended for high-interference environments (model: NBRA-658C/EMC)
- Can be combined with ABB REF615 for complete protection schemes
**If you need this product, feel free to contact us!**
