REF610 is a versatile multifunction protection relay mainly designed for protection
of incoming and outgoing feeders in MV distribution substations.
The relay can also be used as back-up protection for motors, transformers and generators, in industrial
as well as in utility applications.
The large number of integrated protection functions, including three-stage
overcurrent protection, two-stage, non-directional earth-fault protection as well as
thermal protection, makes the relay a complete protection against overcurrent and earth faults.
The optional arc protection for detection of arc situations in air insulated metal-clad
switchgears and the auto-reclose function for automatic clearing of overhead line
faults increase the range of applications further.
The large number of digital inputs and output contacts allows a wide range of applications.

Product benefits
The compact design makes it suitable for both new and retrofit installations
Quick and easy routine maintenance thanks to the removable plug-in design
Complete type test certified by KEMA
Certificated for marine and off-shore use by Det Norske Veritas (DNV)
Product features
Dedicated protection for utility distribution and industrial applications
REF610 offers overcurrent and thermal overload protection for cable feeders,
non-directional earth-fault protection and phase discontinuity protection, and three-phase,
multishot auto-reclose functions for overhead line feeders
REF610 supports a wide range of standard communication protocols,
including IEC 61850. IEC 60870-5-103. Modbus®, Profibus, DNP3. SPA and LON.
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