Earth Leakage Relay ( ELR)
100A – 800A
An earth leakage relay is a device used to sense earth leakages and open a circuit breaker when the leakage current exceeds the preset value. It can protect human beings from electrocution and prevent fire hazards. Earth leakage relays are used in combination with Core balance current transformers(CBCT) or Zero phase current transformer (ZCT).
Human Safety
Even a small leakage current can cause a dangerous electric shock. An ELR can detect and react to these currents before they reach harmful levels, providing essential protection for people working with or near electrical equipment.
Fire Prevention
Leakage current can generate heat in insulation materials. If unnoticed, this heat can ignite surrounding materials and start a fire. The ELR interrupts the power supply before the temperature rises to hazardous levels.
Equipment Protection
Continuous low-level leakage can degrade electrical insulation, cause corrosion, or shorten equipment lifespan. The ELR minimizes these risks by disconnecting the circuit when abnormal leakage is detected.
Compliance and Reliability
Using Earth Leakage Relays ensures that electrical systems meet international safety codes. They also increase system reliability by preventing minor faults from developing into major failures.
Predictive Maintenance
Modern digital ELRs can record leakage current trends over time. Maintenance teams can use this information to identify gradual insulation deterioration and plan repairs before an outage occurs.
Earth Leakage Relay ( ELR)
100A – 800A
An earth leakage relay is a device used to sense earth leakages and open a circuit breaker when the leakage current exceeds the preset value. It can protect human beings from electrocution and prevent fire hazards. Earth leakage relays are used in combination with Core balance current transformers(CBCT) or Zero phase current transformer (ZCT).
Human Safety
Even a small leakage current can cause a dangerous electric shock. An ELR can detect and react to these currents before they reach harmful levels, providing essential protection for people working with or near electrical equipment.
Fire Prevention
Leakage current can generate heat in insulation materials. If unnoticed, this heat can ignite surrounding materials and start a fire. The ELR interrupts the power supply before the temperature rises to hazardous levels.
Equipment Protection
Continuous low-level leakage can degrade electrical insulation, cause corrosion, or shorten equipment lifespan. The ELR minimizes these risks by disconnecting the circuit when abnormal leakage is detected.
Compliance and Reliability
Using Earth Leakage Relays ensures that electrical systems meet international safety codes. They also increase system reliability by preventing minor faults from developing into major failures.
Predictive Maintenance
Modern digital ELRs can record leakage current trends over time. Maintenance teams can use this information to identify gradual insulation deterioration and plan repairs before an outage occurs.
