Contrel introduces ELR-3BN, the new Type B earth leakage relay developed for applications requiring the monitoring of different types of residual current, including alternating, pulsating and smooth DC components.
The device features a clear integrated front display, providing immediate access to relay status, measured current values and key operating information. The onboard interface enables straightforward configuration and quick access to alarm and trip parameters.
ELR-3BN is designed for modern electrical installations where power electronics, inverters, drives, UPS systems and other non-linear loads may generate residual current components requiring Type B monitoring.
Key features include:
- Type B residual current detection;
- monitoring of AC and DC components;
- integrated display for current values and device status;
- configurable trip thresholds;
- alarm and trip status management;
- RS485 Modbus communication for integration into supervision systems;
- event log for improved system diagnostics.
With ELR-3BN, Contrel further expands its earth leakage protection portfolio, offering an advanced solution for industrial applications and complex electrical installations.
