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Numerical Sensitive Current Protection Relay Type : MIT 161


MIT 161 is a numerical protection unit comprising two elements namely the earth fault element and lowset thereby offering two stages of protection. The earth fault element, the first stage of protection is provided with definite time lag (DTL). The lowset element has DTL or numerous IDMTL curves. One of the elements can also be put off when there is no necessity.


  • Capacitor banks
  • High resistance earthed systems
Standard Features
Numerical, true RMS measurement
Both 1A & 5A CT inputs in one relay
Wide range for current & time settings
Both DC & AC auxiliary supply available
Drawout modular case (150X151mm cutout )
Compact design
Non-volatile memory for trip indication
Self-monitoring facility
7 segment LED display
Status indication LEDs
Sealable front cover to prevent unauthorised access
Sensitive earth fault (50N)
Highly immune to harmonics
6 output contacts
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