Safeguard your personnel and valuable assets with our state-of-the-art Earth Leakage Relay (ELR). Designed to detect and mitigate dangerous earth faults in electrical installations, our ELR is a critical component for ensuring unparalleled safety, preventing equipment damage, and maintaining operational continuity.
Earth leakage currents, often undetectable by standard circuit breakers, can lead to severe consequences including electrocution, electrical fires, and extensive equipment damage. Our Earth Leakage Relay provides rapid, reliable, and precise detection of these hazardous currents, initiating immediate corrective action to protect lives and infrastructure.
Key Features
High-Sensitivity Earth Fault Detection: Precisely monitors for even minute leakage currents, far below the threshold of standard overcurrent devices, ensuring early detection of potential hazards.
Adjustable Trip Current (IΔn): Offers a wide range of selectable trip current settings (e.g., 30mA to 30A), allowing customization to suit specific application requirements and comply with varying safety standards.
Adjustable Time Delay (t): Incorporates a user-configurable time delay (e.g., 0 to 5 seconds) to prevent nuisance tripping from momentary current surges, ensuring system stability while maintaining critical protection.
Continuous Self-Monitoring / Self-Test Function: Built-in diagnostics continuously monitor the relay's operational integrity, indicating any internal faults and ensuring readiness for protection. Includes a dedicated "Test" button for manual verification.
Clear Indication (LEDs / LCD): Features intuitive LED indicators (e.g., Power, Trip, Fault, Healthy) or an advanced LCD display to provide instant status updates and fault information, simplifying troubleshooting.
Auxiliary Contacts (NO/NC): Equipped with configurable Normally Open (NO) and Normally Closed (NC) output contacts for tripping associated circuit breakers, contactors, or for remote signaling to SCADA/BMS systems.
Compatible with External Core Balance Current Transformers (CBCTs): Designed to work seamlessly with a range of external toroidal (ring-type) current transformers, accommodating various cable sizes and multi-phase configurations.
Manual and Remote Reset Options: Allows for local manual reset after a trip, with some models offering remote reset capabilities for enhanced operational flexibility in distributed systems.
Robust Industrial Design: Housed in a durable, compact enclosure suitable for harsh industrial environments, ensuring long-term reliability and performance.
DIN Rail Mountable: Standardized mounting allows for quick and easy integration into existing or new electrical panels and enclosures.
Benefits
Enhanced Personnel Safety: Provides critical protection against electric shock and electrocution by rapidly disconnecting power upon detecting a hazardous earth fault.
Prevention of Equipment Damage and Fires: Minimizes the risk of electrical fires and permanent damage to expensive machinery and infrastructure caused by sustained leakage currents.
Reduced Downtime and Operational Costs: By preventing major failures and facilitating quick fault identification, our ELR helps reduce unplanned outages and associated repair costs.
Compliance with Safety Regulations: Helps your facility meet stringent national and international electrical safety standards and regulations (e.g., IEC 60947-2 Annex M, IEC 62020).
Flexible Customization and Easy Installation: Adjustable parameters and standard mounting simplify configuration and integration into diverse electrical systems.
Reliable and Continuous Protection: Self-monitoring features and robust construction ensure consistent, dependable operation when it matters most.
Actual response time depends on trip current and time delay settings
Output Contacts
1 x SPDT (Changeover) or 2 x SPDT
Specify configuration
Contact Rating
5A @ 250V AC (Resistive)
Insulation Voltage
2.5 kV AC (for 1 minute)
Core Balance CT Compatibility
Various internal diameters (e.g., 35mm to 210mm)
External CBCT required, sold separately
Mounting
35mm DIN Rail
Enclosure Protection
IP20 (Terminals), IP40 (Front Panel)
Operating Temperature
-5°C to +55°C
Standards Compliance
IEC 60947-2 Annex M, IEC 62020
Other regional standards may apply
Indicators
Power (Green), Trip (Red), Fault (Yellow)
Specific model may vary
Applications
Our Earth Leakage Relays are ideal for a wide range of industrial, commercial, and utility applications, including:
Industrial Plants: Protecting motors, machinery, heating elements, and process control systems.
Commercial Buildings: Safeguarding offices, retail spaces, and public access areas.
Hospitals and Healthcare Facilities: Ensuring critical patient care equipment and life support systems are protected.
Data Centers: Preventing downtime and damage to sensitive IT infrastructure.
Water Treatment Plants: Protecting pumps, control panels, and outdoor electrical installations.
Renewable Energy Installations: Enhancing safety in solar farms and wind power generation systems.
Mining Operations: Critical for safety in harsh environments with high risk of electrical faults.
Construction Sites: Ensuring worker safety on temporary power distribution networks.
Any electrical distribution panel requiring robust earth fault protection.
Why Choose Our Earth Leakage Relay?
Precision and Reliability: Engineered for unparalleled accuracy and long-term dependability, providing peace of mind.
Robust Construction: Built to withstand demanding industrial conditions, ensuring maximum lifespan and minimal maintenance.
User-Friendly Interface: Intuitive controls and clear indicators simplify setup, monitoring, and fault diagnosis.
Comprehensive Protection: Offers a complete solution for earth fault detection, preventing electrocution, fire, and equipment damage.
Industry Compliance: Designed to meet and exceed relevant international safety standards.
Ordering Information
Ensure the safety and integrity of your electrical systems. Contact us today for a personalized consultation or to request a quote. Our experts can help you select the ideal Earth Leakage Relay model and compatible Core Balance Current Transformers for your specific application requirements.
When ordering, please specify your required trip current range, time delay settings, auxiliary supply voltage, and preferred CBCT internal diameter.
