DTU-30D Distribution Terminal Unit (DTU) for Smart Distribution Automation
The DTU-30D Distribution Terminal Unit (DTU) is a reliable intelligent controller designed for medium-voltage distribution automation systems. It provides real-time monitoring, remote control, fault detection, and communication for Ring Main Units (RMUs), switchgear, compact substations, cable branch boxes, and power distribution networks.
Designed for modern smart grids, the DTU-30D supports multiple communication protocols, enabling seamless integration with SCADA, Distribution Management Systems (DMS), and Energy Management Systems (EMS). It helps utilities improve power reliability, reduce outage time, and achieve faster fault isolation and service restoration.
With its modular architecture, industrial-grade design, and flexible communication options, the DTU-30D is an ideal solution for utility companies, industrial facilities, renewable energy projects, commercial buildings, and distribution network automation.
- Real-time monitoring of voltage, current, switch position, fault indicators, and equipment status.
- Supports remote opening and closing of circuit breakers and load break switches.
- Enables automatic fault detection, isolation, and power restoration.
Compatible with:
- IEC 60870-5-101
- IEC 60870-5-104
- Modbus RTU
- Modbus TCP
- DNP3
Easy integration with SCADA and smart grid automation systems.
- Operating temperature: -40°C to +70°C
- High EMC performance
- Anti-vibration and anti-interference design
- Suitable for harsh outdoor environments
Supports multiple communication methods:
- Ethernet
- RS485
- RS232
- Fiber Optic
- 4G / GPRS
- Modular hardware design
- Front-panel LEDs for status indication
- Local configuration and remote firmware upgrade
- Reduced maintenance costs
Configurable digital and analog I/O channels for various distribution automation applications.
| Parameter | Specification |
|---|---|
| Model | DTU-30D |
| Power Supply | AC220V / DC24V / DC48V |
| Operating Temperature | -40°C to +70°C |
| Relative Humidity | 5%–95% (Non-condensing) |
| Communication Protocols | IEC 60870-5-101/104, Modbus, DNP3 |
| Analog Inputs | Up to 32 |
| Digital Inputs | Up to 64 |
| Control Outputs | Up to 32 |
| Communication | Ethernet, RS485, RS232, Fiber, 4G |
| Protection Rating | IP40 (Indoor), IP65 (Optional Outdoor Enclosure) |
More technical specifications are available upon request.
The DTU-30D is widely used in:
- Smart Grid Distribution Automation
- Ring Main Units (RMU)
- Medium Voltage Switchgear
- Compact Substations
- Cable Branch Boxes
- Utility Distribution Networks
- Industrial Power Distribution
- Commercial Buildings
- Renewable Energy Projects
- Feeder Automation Systems
Every DTU-30D undergoes comprehensive functional testing before delivery to ensure stable and reliable performance.
Our manufacturing process follows strict quality management standards and complies with international industrial requirements, providing dependable solutions for modern power distribution automation.
A DTU is an intelligent controller used in distribution automation systems for remote monitoring, data acquisition, fault detection, and switch control.
Yes. The DTU-30D supports IEC 60870-5-104, Modbus, DNP3 and other standard communication protocols.
Yes. It supports remote opening and closing of circuit breakers and load break switches.
Yes. An outdoor enclosure with IP65 protection is available for harsh environments.
Yes. Ethernet, RS485, fiber optic, and 4G communication options are available.
Yes. We offer OEM/ODM customization based on project requirements.
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