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ABB LDGRB-01 Modular Component
ABB LDGRB-01
LDGRB‑01 is a modular component provided by ABB for low-voltage distribution and fieldbus systems, mainly used for installing, fixing and protecting low-voltage fuses or implementing digital/analog I/O interfaces. The product features a high-strength flame-retardant housing and supports DIN rail or panel mounting, making it suitable for industrial sites with limited space. Its design emphasizes reliability, modularity and multi-protocol compatibility, enabling long-term operation in harsh environments (-25 °C to +70 °C, IP20/IP67).
Main Technical Parameters
- Rated voltage: 230 V AC
- Rated current: 1 A - 63 A (common specifications)
- Input/output channels: Common configurations include 16-32 digital input/output channels; some models offer 8 digital output channels or 16 analog input channels
- Communication interfaces: Modbus RTU, Profibus, fieldbus, etc., compatible with ABB standard protocols
- Protection rating: IP20 (basic dust protection); some models reach IP67 (dust and water protection)
- Dimensions: Approximately 71 mm × 100 mm × 25 mm (DIN rail size)
Product Features
- Modular design: Supports quick plug-in and replacement, facilitating on-site maintenance and expansion.
- High reliability: Adopts flame-retardant materials and photoelectric isolation technology, featuring strong anti-interference capability and long service life.
- Multi-protocol compatibility: Compatible with Modbus, Profibus and ABB’s proprietary fieldbus, adapting to various control systems.
- Compact and durable: Small size and light weight, ideal for power distribution cabinets or control boxes with limited space.
- Flexible configuration: Input types (NPN/PNP), isolation voltage, response time and other parameters can be set via software.
Structure and Components
- Housing: Flame-retardant plastic or metal housing with IP20/IP67 protection.
- Power module: Built-in regulated power supply, meeting the power supply requirements of 24 V DC or 230 V AC.
- I/O interface board: Digital/analog input and output channels with photoelectric isolation and overcurrent protection.
- Communication module: Enables fieldbus or industrial Ethernet connection.
- Installation accessories: DIN rail buckles and screw terminals for easy fixing and wiring.
Typical Application Fields
- Low-voltage distribution systems: Serves as fuse holders to protect circuits from overload and short circuits.
- Industrial automation: Acts as digital/analog I/O expansion for PLC/DCS, applicable to process control, robotics and assembly lines.
- Process fieldbus: Realizes long-distance signal transmission in process industries such as chemical, petroleum and metallurgy.
- Safety and monitoring: Provides fail-safe input/output and supports system self-diagnosis and remote monitoring.
Key Installation and Maintenance Points
- Installation method: Fix via DIN rail or panel screws, ensure the module is placed horizontally to avoid contact issues caused by vibration.
- Wiring precautions: Select appropriate terminals according to the current rating, keep wiring tight to prevent malfunctions due to loosening.
- Power supply check: Verify that the supply voltage matches the module’s rated voltage, and use a regulated power supply to prevent transient shocks.
- Protection check: Inspect the integrity of the housing seal, especially for dust and water-proof models, to ensure the IP rating is not compromised.
- Regular self-inspection: Use the module’s built-in self-diagnosis function to regularly read status registers and replace failed fuses or I/O channels in a timely manner.
- Replacement and upgrade: The modular structure allows replacing a single I/O card or upgrading communication protocols without interrupting the system.
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Xiamen Xingruijia Import and Export Co., Ltd. – Professional Industrial Spare Parts Supplier
We are a high-tech enterprise with years of professional experience in the sales of spare parts for large-scale imported systems, including distributed control systems (DCS), programmable logic controllers (PLC), redundant fault-tolerant control systems, and robot systems. We specialize in the sales and system integration of imported automation system spare parts covering major brands such as ABB, Foxboro, Triconex, Bently Nevada, Ovation, Motorola, Xycom, Allen-Bradley (A-B), Schneider, GE Fanuc, Yaskawa, and Woodward.
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