ELR-3BN Type-B Earth Leakage Relay

Specifications

ELR-3BN Type-B earth leakage relay. Sensitivity range from 0.03 to 10A. RS485. Modbus RTU. Log.

• Type-B earth leakage relay, True RMS, modular DIN rail 3 modules
• Green LED (power ON), Red LED (TRIP), Red LED (missing CT connection), Yellow LED (alarm)
• CTB-2 Type B earth leakage transformer
• Two separate adjustable thresholds (TRIP and alarm), with adjustable delays
• Measures (TRMS) the residual current, AC and DC component according to IEC/EN 60947-2 annex M
• Multifunction LCD display that changes color according to the system status
• Password protection against unauthorized parameter changes
• Residual current peak values, THD and harmonic analysis
• Stores earth leakage values for ALARM and TRIP events; self-test of the toroid connection
• RS485 communication port (Modbus-RTU)