Self -powered RMU protection
ADR 241S AM521 (DO)
ANSI: 50/51 | 50N/51N | CLP | 37 | 49 | 68
Features
- Four-element protection (3-phase + EF) with overcurrent IDMT/DMT and instant trip.
- Backlit LCD for settings and load current display in primary and secondary terms.
- Protection features: Overcurrent, Earth Fault, Cold Load Pickup, Thermal Overload, Under Current, Inrush Blocking.
- Eleven selectable curves for phase and earth fault with IDMT or definite time settings.
- DSP-based design, fault latching, and disturbance recording with time stamping.
- Password-protected settings, dual setting groups, and remote programming.
- IEC 60870-5-103 communication protocol support.
- Optional IP54 compliance with protective cover.
