Contrel ELR-3B Type-B earth leakage monitoring and protection relay Owner's Manual

Contrel ELR-3B Type-B earth leakage monitoring and protection relay is a modular DIN-rail mounted device designed for safety and protection against earth leakage currents. It features a Type-B response, meaning it can detect a broader range of fault currents, including those from DC and high-frequency sources. The ELR-3B provides reliable monitoring and protection for electrical installations, offering visual alerts, adjustable trip thresholds, and programmable outputs.

PDF Download
Document
Contrel ELR-3B Type-B Earth Leakage Protection Manual | Manualzz

Advertisement

Advertisement

Advertisement

Key features

  • Type-B earth leakage protection
  • Modular DIN-rail mounting
  • Adjustable trip thresholds
  • Programmable outputs
  • LCD display
  • Fail-safe function
  • Visual alerts
  • Remote control capability

Frequently asked questions

Type-B protection is more comprehensive, detecting a wider range of fault currents including those from DC and high-frequency sources. Type-A protection is limited to sinusoidal AC currents.

Press and hold the 'Id' button for 2 seconds. You can then change the value by repeatedly pressing the same button. The display will show 'SAVE' when the new value is accepted.

Press the 'PROG' button briefly. The display will show 'ALARM'. You can then adjust the prealarm threshold, delay time, and reset mode in the menu.
ALP: {x-default=https://manualzz.com/doc/80400611/contrel-elr-3b-type-b-earth-leakage-monitoring-and-protec..., it=https://manualzz.com/doc/80400611/contrel-elr-3b-type-b-earth-leakage-monitoring-and-protec...?lang=it}
Preparing document for printing…
0%