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.

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All Protection Relay Series

N-DIN-F

LV Feeder relay
ANSI  46, 49, 50/51, 50N/51N, 51BF, 68, 86

N-DIN-M

LV Motor relay
ANSI  26, 37, 46, 48, 49, 50/51, 51LR, 64, 66, 68, 86

MC30

Feeder relay MC30
ANSI  49, 50/51, 50N/51N, 51BF, 68, 86

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

MC40-SR

Feeder relay MC40
ANSI  49, 50/51, 50N/51N, 51BF, 68, 86

MC2-30M

Motor relay
ANSI  37, 46, 48, 49, 50/51, 51BF, 51LR, 64, 66, 68, 74TCS, 86

MC2-30T

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

MC2-30MW

Motor relay with Voltage and Power control
ANSI  27, 37, 46, 48, 49, 50/51, 51BF, 51LR, 55, 59, 64, 66, 68, 74TCS, 81, 86

FMR

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

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