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    ECOFIT 50/51

    CT Powered Protection Relays for Retrofit Applications.

    The Schneider Electric ECOFIT™50/51 single phase or ground time overcurrent relays are direct plug and play replacements for many GE IAC electromechanical, GE DIAC and Basler BE1-50/51B replacements for GE IAC relays.

    ECOFIT Retrofit Relays
    • Features

      • Self-powered from 50 or 60 Hz systems
      • Available in 5 amp or 1 amp CT secondary versions
      • 10-year warranty with final assembly and test in the USA
      • 31 Built-in protection curves
      • Instantaneous 50/50N elements
      • Fundamental or True RMS current measurement method
      • 2nd harmonic inrush blocking
      • Emulates electromechanical relay reset
      • TIME and TIMEBak 51/51N/50/50N O/C elements
      • 2 magnetic trip flags
      • 2 output relays rated per ANSI C37.90
      • Current measurement accuracy ±2%
      • Time/Date is retained for 36 hours after power loss
      • Disturbance recording (10x4 second recordings)
      • Fault recording (20 records)
      • Event logs (200 events)
      • Manual Trip Mode with status LED
      • Circuit Breaker diagnostics (∑ Trips, ∑ Amps^n)
      • Displays current measurement in primary or secondary values
      • Magnetic trip flags are not dependent on output relay load for operation
      • USB configuration port and password protection


      • Plug and play reduces install time and saves existing wiring
      • Self-powered requires no battery or auxiliary power
      • TIMEBak element can be used as a second stage TOC or a more sensitive IOC element
      • Extended testing intervals
      • Multi-vendor curves can retrofit a variety of legacy relays
      • Disturbance recording, fault records and event logs allow for post fault analysis
      • Magnetic trip flags can be reset from front panel or through the USB port
      • Setting ranges allow for phase or ground fault use


      • Direct Plug and Play replacement for GE single phase electromechanical IAC relays
      • Direct Plug and Play replacement for GE single phase digital DIAC relays
      • Direct Plug and Play replacement for Basler BE1-50/51B replacements for GE IAC relays
      • Single Phase Time and Instantaneous overcurrent protection (50/51)
      • Single Phase Ground Time and Instantaneous overcurrent protection (50N/51N)