Description
Product Overview
ABB REM610 is a motor protection relay from the ABB Relion® 610 series, designed for protection, control, measurement, and supervision of medium-sized and large asynchronous low-voltage motors and small to medium high-voltage motors. It is widely used in industrial power systems where reliable motor protection against electrical and thermal faults is required.
The ABB REM610 provides comprehensive protection functions including thermal overload protection, short-circuit protection, earth-fault protection, phase unbalance protection, undercurrent protection, motor start supervision, and temperature monitoring. It can be applied to both circuit-breaker-controlled and contactor-controlled motor feeders.
ABB REM610 is part of the ABB Relion protection and control product family and supports integration into modern substation and industrial automation systems through communication protocols such as IEC 61850, IEC 60870-5-103, Modbus, Profibus, LON, and SPA (depending on configuration).
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | REM610 |
| Manufacturer | ABB |
| Product Family | ABB Relion® 610 Series |
| Product Type | Motor Protection Relay |
| Main Application | Protection of asynchronous motors |
| Protection Target | LV motors and small/medium HV motors |
| Controlled Equipment | Motors, feeders, transformers (application dependent) |
| Current Inputs | 1 A / 5 A CT inputs |
| Rated Frequency | 50/60 Hz ±5 Hz |
| Auxiliary Supply | 24/48/60 VDC or 100/110/120/220/240 VAC, 110/125/220/250 VDC (variant dependent) |
| Protection Functions | Thermal overload, overcurrent, earth fault, phase unbalance, undercurrent |
| Motor Start Protection | Thermal stress-based startup supervision |
| Temperature Protection | RTD/thermistor input option |
| Measurement Functions | Phase current, residual current, thermal level, negative sequence current |
| Recording Functions | Disturbance recorder and event logging |
| Communication | IEC 61850, Modbus, IEC 60870-5-103, Profibus, LON, SPA (option dependent) |
| Engineering Software | ABB PCM600 / relay configuration tools |
| Mounting | Panel-mounted plug-in relay design |
| Weight | Approx. 3.5 kg |
| Application Environment | Industrial and utility electrical systems |
Main Features and Advantages
Comprehensive Motor Protection
ABB REM610 provides complete protection coverage for asynchronous motors during startup, normal operation, overload conditions, and abnormal operating states. It continuously monitors electrical and thermal conditions to prevent motor damage and improve equipment availability.
Protection functions include:
- Three-phase thermal overload protection
- Motor startup supervision
- Low-set and high-set overcurrent protection
- Earth-fault protection
- Negative sequence current protection
- Phase reversal protection
- Undercurrent protection
- Restart inhibit function
- Circuit breaker failure supervision
- RTD-based temperature protection (optional)
REM610
Thermal Protection and Motor Starting Supervision
A major advantage of ABB REM610 is its thermal model, which calculates motor thermal stress during operation and startup. This helps protect motors from overheating caused by:
- Excessive load
- Frequent starting
- Locked rotor conditions
- Cooling failure
The restart inhibit function prevents repeated motor starts when thermal capacity has been exceeded, improving motor lifetime and reliability.
Flexible Industrial Communication
ABB REM610 supports multiple communication protocols, allowing integration with SCADA systems, PLCs, and substation automation platforms. Communication capability enables remote monitoring, event collection, relay diagnostics, and parameter management.
Disturbance Recording and Diagnostics
The built-in disturbance recorder and event logging functions allow operators to analyze motor faults and operating conditions. This improves troubleshooting efficiency and supports preventive maintenance programs.
Plug-In Modular Design
The ABB REM610 uses a plug-in construction that simplifies installation, commissioning, and replacement. The relay can be removed or replaced without extensive panel modification, reducing maintenance downtime.
Applications
ABB REM610 is used in industrial and utility applications where reliable motor protection is required.
Industrial Motor Protection
Common applications include protection of:
- Pumps
- Fans
- Compressors
- Crushers
- Mills
- Conveyors
- Process machinery
Power Plants
In power generation facilities, ABB REM610 protects auxiliary motors such as:
- Cooling water pumps
- Feedwater pumps
- Fans
- Fuel handling motors
- Auxiliary drives
Process Industries
Chemical, oil & gas, mining, and manufacturing facilities use REM610 for protecting critical motors where unexpected failure can cause production interruption.
Feeder and Transformer Applications
The relay can also be applied to cable feeders and distribution transformers requiring:
- Thermal overload protection
- Overcurrent protection
- Earth-fault protection
- Phase unbalance protection
Related Products
ABB REM610 — Motor protection relay for asynchronous motors.
ABB REF610 — Feeder protection relay from the ABB Relion 610 family.
ABB RET610 — Transformer protection relay.
ABB REU610 — Voltage protection and supervision relay.
ABB REC610 — Bay control and monitoring relay.
ABB PCM600 — ABB protection and control engineering software.
ABB Relion 615 Series — Modern successor family for many 610-series applications.
