Description
Earth Leakage Relay Type A – Adjustable 0.03–10A Protection
Hager HR510
The Hager HR510 Earth Leakage Relay is a configurable residual current monitoring device designed to detect earth leakage faults in electrical installations. Used together with an external toroid, the HR510 provides reliable protection by continuously monitoring leakage current and triggering alarms or control outputs when preset thresholds are exceeded.
This relay offers a wide adjustable residual current range from 0.03A to 10A and configurable time delays, allowing installers to tailor protection to suit industrial, commercial, and infrastructure applications. A pre-alarm output provides early warning at 50% of the configured leakage threshold, helping prevent nuisance trips and enabling predictive maintenance.
Flexible Residual Current Monitoring
The HR510 supports multiple sensitivity settings and adjustable time delays, making it suitable for a wide range of electrical monitoring scenarios including distribution boards, machinery protection, and building electrical systems.
- Adjustable residual current settings: 0.03 / 0.1 / 0.3 / 0.5 / 1 / 3 / 10 A
- Adjustable trip delay: 0 – 3 seconds
- Pre-alarm output at 50% of set leakage current
- Standard or positive safety output configuration
- Compatible with external toroid sensors
Reliable Industrial Protection
The relay operates from a 230V supply and monitors networks from 50V to 700V. Fault indication LEDs, reset and test buttons allow quick diagnostics and verification of correct operation.
Designed for panel installation, the HR510 provides dependable leakage monitoring while supporting preventative maintenance strategies in critical electrical systems.
Key Features
- Type A residual current monitoring relay
- Adjustable leakage current range: 0.03A – 10A
- Adjustable time delay up to 3 seconds
- Pre-alarm output for early leakage detection
- Test and reset push buttons for functional checks
- Fault and power indication LEDs
- Standard or positive safety output contact
Technical Specifications
- Supply voltage: 230V AC ±20%
- Network voltage monitored: 50 – 700V
- Residual current settings: 0.03 / 0.1 / 0.3 / 0.5 / 1 / 3 / 10 A
- Trip delay: 0 / 0.1 / 0.3 / 0.4 / 0.5 / 1 / 3 s
- Output contact rating: 6A / 250V AC
- Operating temperature: -10°C to +55°C
The Hager HR510 is ideal for installations requiring adjustable leakage monitoring with alarm and control functionality, ensuring safe and reliable operation of electrical systems.
