Earth Relay Unit

02.08.24 07:26 PM

At Linovate Technologies, we pride ourselves on being a leading manufacturer of advanced safety solutions tailored to meet the rigorous demands of hazardous industrial environments. Our Earth Relay Unit (ERU) stands as a testament to our commitment to innovation and excellence. Designed with precision and engineered for reliability, our ERU offers unparalleled grounding and bonding solutions, essential for maintaining the safety and integrity of industrial operations. What sets our product apart is its cutting-edge online monitoring capability, providing real-time oversight of earthing continuity and system integrity. This advanced feature not only enhances operational efficiency but also plays a critical role in preventing potential safety hazards, such as static charge accumulation.


As a trusted name in the industry, we are dedicated to delivering premium quality products that meet the highest standards of safety and compliance. Our Earth Relay Unit is no exception, offering a robust and durable solution crafted from high-quality materials. This ensures its resilience even in the most demanding industrial settings, making it a preferred choice for various applications. From chemical plants and petrochemical facilities to pharmaceutical sectors, our ERU serves a wide range of industries, providing versatile applications and unmatched reliability. Our reputation as a manufacturer of high-quality safety solutions is built on a foundation of expertise, innovation, and a deep understanding of the unique needs of our clients.


For more comprehensive information, including a detailed overview of the Earth Relay Unit working principle, wiring diagrams, and other technical specifications, we invite you to explore our dedicated blog post. This resource offers valuable insights into the applications, benefits, and key features of our ERU, further demonstrating our expertise and commitment to safety.

Key Features

  • State-of-the-Art Manufacturing: Our Earth Relay Units are crafted with precision using high-quality materials. This ensures durability and resilience in the most demanding industrial settings.
  • Advanced Online Monitoring: Equipped with the latest technology, our Earth Relay Units enable continuous monitoring of earthing continuity. This feature provides real-time feedback on the system's integrity, enhancing overall safety and operational efficiency.
  • Unmatched Reliability: Designed to meet and exceed industry standards, our units deliver consistent and dependable performance, crucial for preventing static charge accumulation and ensuring the safety of personnel and equipment.
  • Versatile Applications: Our Earth Relay Units are ideal for a wide range of industries, including chemical plants, petrochemical facilities, and pharmaceutical sectors. They offer effective grounding solutions and continuous safety monitoring, making them an essential component of any safety system.

Applications & Benefits

  • Wide Range of Applications: Ideal for environments where the safe dissipation of static charges is critical, including explosive atmospheres and sensitive manufacturing processes.
  • Operational Efficiency: The real-time monitoring capability provides immediate feedback, enabling quick decision-making and minimizing downtime.
  • Cost-Effective: By preventing potential hazards, the ERU helps in reducing maintenance costs and avoiding expensive equipment damage.
Technical Specification
Wiring Diagrams
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Technical Specification
Earth Relay Unit
• Earth monitor detector in the Earth Loop.

• Single and Dual Output approved for II 2G Ex d II C T6 Gb.

• Wide range of Earthing clamps.

• Intrinsically / Ex proof.

• Relay Outputs
Wiring Diagrams
Earth Relay Unit Wiring Diagram

The Earth Relay Unit (ERU) wiring diagram illustrates the meticulous design and thoughtful engineering behind this critical safety device. At Linovate Technologies, we prioritize both functionality and safety, ensuring that our ERU offers comprehensive grounding and monitoring capabilities. The diagram highlights several key components, including the GI Earthing Strip and the manual earthing interlock, which are crucial for establishing a reliable earth connection. The unit is equipped with double compression glands for secure and efficient wiring, while the external body earth connection ensures that the ERU's housing is adequately grounded.


This setup includes a dedicated earth pit for customer scope, ensuring a secure and dependable grounding system, which is vital for preventing static charge accumulation and ensuring personnel and equipment safety. The diagram also emphasizes the importance of correct wiring, particularly the connection to Terminal No. 1 of the ERU unit and the Earth Terminal to maintain proper earthing continuity. The terminal for batch controller offers versatile connections (NO, NC, and C) for integrating the ERU with other control systems, ensuring seamless communication and operation.


The GA drawing further includes details of the glands used, specifying the positions for the change-over contacts and the earth clamp. This detailed wiring guide demonstrates the ERU's capability to monitor and control earthing status, providing real-time feedback and enhancing overall operational efficiency. Whether in chemical plants, petrochemical facilities, or other industrial environments, our Earth Relay Unit is designed to deliver exceptional performance, reliability, and safety.

Learn More

For more comprehensive information, including a detailed overview of the Earth Relay Unit working principle, wiring diagrams, and other technical specifications, we invite you to explore our dedicated blog post. This resource offers valuable insights into the applications, benefits, and key features of our ERU, further demonstrating our expertise and commitment to safety.


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Linovate Technologies

Linovate Technologies

Linovate Technologies
http://www.linovate.co.in/