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The ABB REF610C11HCNR01 is a compact, multifunction feeder protection relay from the ABB Relion® 610 series (REF610 family), specifically designed for protection, measurement, supervision, and control of incoming and outgoing feeders in medium- and low-voltage distribution substations and industrial power systems. This legacy IED (Intelligent Electronic Device) provides comprehensive overcurrent and earth-fault protection, thermal overload safeguarding, phase discontinuity detection, circuit-breaker failure monitoring, and optional arc protection features. The ABB REF610C11HCNR01 supports resistance-earthed and solidly earthed networks, making it suitable for utility distribution, industrial applications, and marine environments requiring reliable fault detection and feeder management. As a discontinued product (not active since 2017), the ABB REF610C11HCNR01 remains widely used for spares, retrofits, and maintenance in existing installations, offering cost-effective, plug-in multifunction protection with integrated HMI and communication capabilities.

Key technical specifications of the ABB REF610C11HCNR01 include:

Rated current inputs: Typically 1 A or 5 A (In = 1A or 5A for phase currents; precise four current inputs including earth-fault)

Rated frequency: 50/60 Hz

Auxiliary power supply (Uaux): 100–240 V AC / 110–250 V DC (wide range variants; some configurations 24–250 V DC / 110–240 V AC)

Power consumption:<9 W quiescent; <13 W during operation

Protection functions: Three-phase non-directional overcurrent (low-set, high-set, instantaneous stages with definite-time or IDMT characteristics), non-directional earth-fault (low-set, high-set), thermal overload for cables, phase discontinuity, circuit-breaker failure, optional arc protection (lens sensors or remote light signal)

Auto-reclosing: 1–3 shots

Outputs: Three normally open power output contacts; two change-over signal contacts (plus optional additional on I/O module)

Inputs: Two galvanically isolated digital inputs (plus optional three more)

Communication: Optional rear module for SPA-bus, IEC 60870-5-103, Modbus (RTU/ASCII), or DNP 3.0 via RS-485/plastic fiber-optic; front optical/infrared port

HMI: Alphanumeric LCD (2×16 characters), eight programmable LEDs, navigation buttons

Disturbance recorder: Up to 80 seconds, four analog + eight digital channels

Operating temperature: Typically -25°C to +55°C (industrial range)

Mounting: Plug-in unit in relay case (detachable), panel or rack mount

Additional features: Trip-circuit supervision, trip lockout, event recording (up to 100 events), self-supervision, non-volatile memory, battery backup for RTC

The ABB REF610C11HCNR01 is a specific configuration variant (e.g., C11HCNR series) with standard I/O and protection features; exact options depend on the full order code.

To operate the ABB REF610C11HCNR01 effectively:

Power up with auxiliary supply (Uaux) and confirm green Ready LED illuminates steadily with no IRF (Internal Relay Fault) alarm.

Access the HMI: Navigate menus using arrow buttons to view measurements, events, alarms, or recorded data.

Connect to PC via front optical port (wireless or cable) using ABB tools (e.g., Relay Setting Tool or PCM600 predecessor) for parameter viewing/editing.

Monitor real-time values: Phase currents, earth-fault current, thermal status, demand values, and protection starts/trips.

Perform control actions: Use HMI for breaker open/close (if configured), acknowledge alarms, or reset targets/LEDs.

Test protection: Simulate faults via secondary injection to verify overcurrent, earth-fault, or auto-reclose sequences.

Download disturbance/event records and clear buffers as needed; check self-supervision status regularly.

These steps support safe local and remote operation of the ABB REF610C11HCNR01 in feeder applications.

Proper installation of the ABB REF610C11HCNR01 requires strict adherence to safety guidelines:

Mount the relay case in a panel or rack with adequate ventilation; ensure seismic stability if required.

Power down and short CT secondaries before wiring to prevent open-circuit hazards; disconnect all supplies.

Connect CT/VT inputs with correct polarity and phase sequence using shielded twisted pairs; ground shields appropriately.

Wire auxiliary power with fused protection and correct voltage range; verify polarity.

Install optional I/O modules or communication cards before inserting the plug-in unit; match case and unit order numbers (first 10+ characters) to avoid functionality loss.

Connect fiber-optic or RS-485 for rear communication in noisy environments; use ESD precautions when handling the plug-in unit.

After insertion (push until locks click), power up gradually and perform self-supervision check; refer to ABB manuals (e.g., Technical Reference Manual 1MRS755310) for the ABB REF610C11HCNR01 terminal diagrams and commissioning.

Protect from dust, excessive humidity, or vibration beyond ratings.

Routine maintenance for the ABB REF610C11HCNR01 ensures ongoing reliability:

Inspect weekly for dust on vents/HMI, loose connections, or LED indications (Ready green, no IRF red).

Check daily for active alarms, start/trip LEDs, or HMI messages; acknowledge and log events.

Monitor auxiliary voltage stability and battery charge (for RTC); replace battery if low.

Review event/disturbance records periodically via HMI or PC tool; clear as appropriate.

Verify communication links (front/rear) and self-supervision status.

Perform functional tests (e.g., breaker trip simulation) during planned outages.

Backup settings and apply firmware updates only per ABB procedures for legacy REF610 devices like the ABB REF610C11HCNR01.

These practices help detect faults early in distribution systems.

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Who can I contact if I encounter any problems?

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