Earth Leakage Relay (ELR)｜Prevent Electrical Accidents in Industrial & Office Facilities

Electrical leakage poses serious risks in industrial plants, commercial buildings, and offices. Earth Leakage Relays (ELRs) are designed to detect small leakage currents and immediately cut off the power supply, preventing damage to equipment and protecting human lives.
With high sensitivity and fast response, ELRs are a critical safety component for any environment where electrical reliability is vital. They help comply with safety standards and reduce the risk of fire and injury due to ground faults.
Hitachi Asia (Thailand) Co., Ltd., based in Bangkok, offers fast and reliable service throughout Southeast Asia, including Indonesia, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam.
■ Features
- High-Sensitivity Detection: Advanced sensors respond quickly to minimal leakage currents.
- Versatile Application Range: Models available for residential, commercial, and heavy industrial use.
- Easy to Install & Maintain: Compact design allows quick setup with low maintenance.
- Stable Long-Term Performance: Built for reliability in demanding environments with high safety standards.
■ Technical Specifications
- Detection Sensitivity: Configurable for varying leakage thresholds.
- Response Time: Instantaneous tripping to prevent escalation.
- Model Variants: Includes specialized versions for high-voltage or industrial systems.
- Use Cases:
- Industrial production lines
- Office buildings
- Electrical panels in high-use environments
- Backup power systems
📄 For more details, download the product PDF or contact our technical support team.
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