Cart Total Items (0)

Cart

Remote Terminal Unit 

Remote Terminal Unit 

Holystar > Remote Terminal Unit 

Remote Terminal Unit

The HUD-870(RTU) is an innovative smart distribution network
automation device, which combines protection and connectivity functions in one
device. This device is characterized by its reliance on a high-efficiency SOC
platform and a dual-core processor to deliver high performance and exceptional
reliability. It collects and analyzes data from smart meters and sensors, then sends
this data to control centers to improve the decision-making process and increase
operational efficiency.

Download Brochure
Request a Quote     
    Contact Sales    

Key Features

  • Multi-functional control: Supports manual, electric, and remote control via an advanced control system that makes operations easier. o
  • High stability: The device is based on a dual-core ARM processor, ensuring strong reliability and superior performance in various working environments.
  • Intelligent monitoring and analysis: It collects and analyzes data from smart meters and sensors in real-time, which enhances the ability of control centers to make quick and effective decisions.
  • Flexibility in communication: It supports many communication protocols, such as IEC 60870-101, Modbus, etc., which enhances its compatibility with different systems.
  • Easy integration: It allows the system to expand flexibly to meet the needs of the future without the need for radical infrastructure modifications.

Technical Features

Designed for reliability and versatility, the HUD-870 is equipped with robust hardware and advanced communication capabilities. Its wide operating range, flexible interface options, and protocol support make it a powerful solution for modern smart grid environments. Compact in size yet comprehensive in function, this unit is built to meet the evolving demands of energy management systems.

Operating Environment & Connectivity
Communication, Power & Dimensions

The HUD-870 is engineered to operate in extreme conditions, with a temperature range of -40°C to +70°C, humidity tolerance from 10% to 100%, and atmospheric pressure between 70 kPa and 110 kPa. It features multiple local communication interfaces including 2×RS232, 2×RS485, 3×RJ45, and 1 infrared port. For advanced connectivity, it supports 4G (NB-IoT), GPS, and optical fiber telecommunication options, ensuring seamless integration into modern smart grids.

The device supports a wide range of communication protocols including IEC 60870-101, IEC 60870-104, IEC 61850, DNP3.0, MODBUS, MQTT, and DLMS—making it highly compatible with various systems. It operates on a DC 24V power supply, with an input range between 21V and 29V. Compact yet powerful, the unit is housed in a durable body measuring 215 × 177 × 150 mm.

Uses and Applications

Smart distribution networks

Used in low-voltage switching stations to collect and analyze data from smart meters and sensors.

Improve network efficiency

Helps improve performance by monitoring data and making effective decisions quickly.

Remote control systems

It can be controlled remotely, which contributes to reducing maintenance costs and increasing the effectiveness of dealing with malfunctions.

Why the HUD-870?

  • Smart Remote Capabilities: Offers full remote control, monitoring, and diagnostics— including telemetry, remote signals, and automated re-closing.
  • Comprehensive Protection: Built-in safeguards against phase faults, overload, ground faults, and voltage drops ensure system stability.
  • High Durability & Safety: Made from high-quality Cycloaliphatic Epoxy Resin for water resistance, fire safety, and zero explosion risk.
  • Compact & Maintenance-Free: Lightweight, long-lasting design that requires no maintenance—ideal for efficient, space-conscious installations.