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

MC30-R2

Feeder Relay with Autoreclosure
ANSI  49, 50/51, 50N/51N, 51BF, 68, 74TCS, 79, 86

MC40-SEF2

Feeder Relay with Sensitive Earth-Fault and Autoreclosure
ANSI  49, 50/51, 50N/51N, 51BF, 64SEF, 68, 79, 86

MC2-30T

Advanced Feeder relay
ANSI  46, 49, 50/51, 50N/51N, 51BF, 68, 74TCS, 79, 86

MC3V-CEI-021

CEI-021 relay
ANSI  27, 51BF, 59, 68, 79, 81, 86
CEI-021

MC3V-CEI (A70)

CEI-016(A70) relay with autoreclosure
ANSI  27, 51BF, 59, 59N, 68, 79, 81, 81V, 86
CEI-016(A70)

FMR

Complete Feeder relay
ANSI  27, 27V1, 46, 49, 50/51, 50N/51N, 51BF, 51V, 59, 59N, 59V2, 68, 74TCS, 79, 81, 86