The MFR 12 provides current protection only, and different packages are available for different applications: • MFR 12/CP package includes protection for time-overcurrent (TOC) and calculated ground faults. • MFR 12/51V package includes protection for time-overcurrent (TOC), calculated ground faults and voltage restraint time overcurrent. • MFR 12/IvIkR package includes protection for ground faults via measurement of the displacement voltage. • MFR 12/50-51GN package includes protection for directional ground faults. (product spec 03249)
The MFR 13 provides voltage, current and power protection, and different packages are available for different applications: • MFR 13/GP package includes protection for over-/under-voltage, over-/underfrequency, voltage asymmetry, time-overcurrent (TOC), overload, reduced/reverse load, load imbalance, re-active power (loss of excitation), and power factor cosphi as well as monitoring for zero-voltage. • MFR 13/GPX package adds five additional configurable relay outputs and a synch-check relay function. • MFR 13/GPX-I package additionally offers a MOD bus RTU slave interface. (product spec 03245)
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