Protection Relays

With a proven track record of 50 years, Microelettrica continues to lead the way making new protection, control, and automation applications possible.

From Generators to Transformers and through Transmission lines to Motors and beyond, our solutions detect anomalies and mitigate faults, preventing costly downtime and equipment damage to ensure dependable, safe power worldwide.

All Protection Relay Series

RBW/D

Directional Overcurrent Definite Time
ANSI  32, 67, 67N

RBW/I

Directional Overcurrent Inverse Time
ANSI  32, 67, 67N

MC20-CEI

CEI relay with Directional Earth-Fault
ANSI  50/51, 50N/51N, 51BF, 67N, 68, 86
CEI-016

FMR-M

Complete Feeder/Motor relay
ANSI  27, 27V1, 37, 46, 48, 49, 50/51, 50N/51N, 51BF, 51LR, 51V, 59, 59N, 59V2, 64, 66, 67, 67N, 68, 74TCS, 81, 86