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ABB REM610C55HCNN02 – Multifunction Motor Protection Relay
Product Overview
The REM610C55HCNN02 belongs to ABB Relion 610 series, a dedicated intelligent electronic device for medium and large asynchronous motor protection and monitoringABB Group. Integrated with comprehensive protection logics and disturbance recording function, it safeguards pumps, fans, crushers and other motor-driven equipment against overload, short circuit, phase unbalance and earth faults. It delivers real-time electrical measurement, fault event logging and multi-protocol communication, resolving the pain point of scattered discrete protection components in industrial power distribution systems. The pluggable modular structure adapts to cabinet installation and continuous long-term operation in process, power and marine industrial sites.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | REM610C55HCNN02 |
| Manufacturer | ABB |
| Product Type | Motor Protection & Control IED |
| Power Supply | 24/48/60 V DC, 85–110% AC voltage tolerance |
| Communication / Protocol | Modbus RTU, Profibus DP, IEC 60870-5-103, SPA bus |
| Operating Temperature | -20℃ to +60℃, non-condensing |
| Mounting | Standard DIN rail cabinet mounting |
| Dimensions (HxWxD) | 160mm × 100mm × 110mm |
| Weight | 0.6kg |
| Typical Interfaces | 8 configurable digital inputs, 4 relay outputs, RTD expansion slot |
| Compliance | CE, RoHS, IEC 61850-3, DNV marine certification |
ABB REM610C55HCNN02
Key Features and Benefits
- Full-range motor protection logic: Embeds thermal overload, startup supervision, stall, phase loss, earth fault and phase reversal protection to cover all motor operating states from startup to standby cooling.
- Built-in disturbance recorder: Captures up to 80 seconds of pre-fault and post-fault data to accelerate fault root cause analysis without extra recording hardware.
- Flexible expandability: Supports optional RTD module for winding and bearing temperature monitoring via platinum or nickel sensors, adding temperature interlock protection.
- Multi-system compatibility: Interconnects with DCS, SCADA and local control panels via mainstream industrial bus protocols for centralized remote monitoring.
- Continuous self-diagnosis: Real-time hardware and software monitoring locks protection outputs and triggers fault alerts upon internal component failure to avoid false tripping.
- User-configurable HMI: LCD display with programmable LED indicators simplifies parameter setting, real-time value reading and event query on site.
Related Models
- REM610C55HCNN01: Base version relay without disturbance recording function, suitable for simple low-demand motor protection applications.
- REM610C56HCNN02: Upgraded variant with extended RTD channel capacity for multi-point high-precision temperature measurement.
- REM620: Higher-end protection unit with arc flash detection, designed for high-voltage heavy-duty motor sets in large power plants.
- REM543: Compact feeder protection relay for small auxiliary motors with fewer input/output terminals.
Installation and Maintenance
This relay adopts a removable plug-in rear connector for quick wiring and replacement without full cabinet power cut. Before installation, verify auxiliary power voltage and CT secondary current rating (1A or 5A) to match site circuit parameters. Maintain 5–20cm ventilation space around the unit to avoid overheating during continuous operation.
Routine maintenance includes quarterly inspection of terminal tightness and annual calibration of protection setting thresholds. Replace internal data storage battery every five years to preserve fault recording data during power outages. Conduct full function testing after each disassembly or wiring modification to ensure all protection trips and communication links operate normally.
