ABB REM615 HBMBCCAHNBA1ANN1XD Motor Protection Control Relay

ABB REM615 (HBMBCCAHNBA1ANN1XD) Motor Protection & Control Relay – Key Functions‌

1. Comprehensive Motor Protection‌

Thermal Overload (49)‌
Dual thermal models (motor & cable) with cooling time constants
RTD (Pt100/PTC) inputs for direct winding/bearing temp monitoring
Mechanical Protection‌
Stall protection (14) with acceleration timer
Jam detection (load-dependent)

2. Electrical Fault Protection‌

Short-Circuit (50/51)‌
Instantaneous & time-delayed phase overcurrent
Earth Fault (50N/51N/50G/51G)‌
Residual current (core balance/neutral CT) & directional options
Phase Unbalance (46)‌
Negative sequence current detection (≥8% imbalance)

3. Advanced Control Logic‌

Start Management‌
Sequential start blocking (anti-jogging)
Starts-per-hour counter with thermal memory
Underload (37) & Underpower‌
Pump run-dry & belt break detection

4. Mechanical & Environmental‌

Modular Design‌:
Plug-in modules for I/O expansion (HBMBCCAHNBA1ANN1XD variant)
Robust Construction‌:
-40°C to +70°C operation (conformal coating option)