Products Relays

October 2013 - Transition to 4000 Series Protection Relays
ERLPhase is pleased to announce to our relay customers that our 4000 series of protection products is now complete, including the addition of the F-PRO 4000 and the advanced B-PRO 4000 Multibus Protection Relay. Customers used to purchasing our older generation protection relays will experience a seamless transition and increased functionality with the purchase of 4000 series relays.

F-PRO 5100 Distribution Protection & Management Relay

F-PRO 5100 Distribution Protection & Management Relay

The F-PRO 5100 provides comprehensive feeder management protection, standard ring bus capability, reclosing, demand/trend metering and recording, DFR quality fault oscillography, sequence of event logging, fault location, SCADA control and metering in a fully integrated protective relay solution


  • Comprehensive overcurrent and recloser functions: over/under frequency load shedding and inter-tie protection
  • Protection functions include IEEE devices 50LS, 50BF, 50/51/67, 50N/51N/67, 46/50/51/67, 25/27/59 (25C), 21P, 27, 32(P&Q), 59, 60, 79, 81, and THD
  • ProLogic - control logic statements
  • 8 settings groups available with 16 group logic statements for adaptive relay setting
Recording, Monitoring and Metering
  • High quality recording - 96 samples/cycle fault recording, 30 to 360 day load trending (integrating, rolling or thermal modes) and event logging (1 ms)
  • Comprehensive and flexible breaker monitoring using breaker logic and I*I*t functions
  • Demand, Peak Demand and Energy metering features with complete SCADA metering (DNP or Modbus)
  • Front display, fault location, MW, MVAR, volts, amps, power factor, frequency and THD
  • Trend recording with maximum 360 day capacity
Substation Automation - Ethernet Ready
  • Direct-connect DNP3 and Modbus SCADA communication protocols
  • 3 RS-232 communication ports
  • IRIG-B time stamping and sample synchronization
  • 30 virtual inputs with complete SCADA metering and DNP control
  • Optional 10 Base T Ethernet Port
  • Optional internal modem
Easy to Use
  • Easy to use, simplified relay setting and record analysis software (Windows® 2000/XP)
  • Intuitive ASCII-terminal interface provides full local or remote access

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Winnipeg, Canada