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Home » Products » Siemens Reyrolle Numerical Relay » Siemens Reyrolle 7SR224 Overcurrent Protection Relay

Siemens Reyrolle 7SR224 Overcurrent Protection Relay

Siemens Reyrolle 7SR224 Overcurrent Protection Relay
Siemens Reyrolle 7SR224 Overcurrent Protection Relay
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Product Code : 7SR224
Brand Name : SIEMENS
Price And Quantity
  • Minimum Order Quantity
  • 1 Piece Unit
  • Price Or Price Range
  • INR
Product Description


7SR224 series relays include for directional control of three phase over current and earth fault functionality and typically installed as an integral controller for a pole mounted recloser. The controller offers an integrated auto-reclose solution for use on OHL feeders.

The relay functionality allows highly flexible settings for current and time grading making it compatible with all types of over current protections.

Relays have four current and four voltage inputs and are housed in E10 cases.

Integrated logic is provided to allow the optimal configuration of relay functionality with the relays analogue inputs and binary input/output circuits.

Protection, instrumentation and metering functionality is accessible via data comms channel(s). A front USB port for local PC connection and rear electrical RS 485 port for remote connection are provided as standard, additional ports are available as options.



  • Broken Conductor (46BC)
  • Negative Phase Sequence Overcurrent (46NPS)
  • Thermal Overload (49)
  • Overcurrent (50, 51)
  • Earth Fault (50G, 50SEF, 51G, 51SEF)
  • High Impedance REF (64H)
  • Under/Over Voltage (27/59)
  • Negative Phase Sequence Voltage (47)
  • Voltage Controlled Overcurrent (51V)
  • Neutral Voltage Displacement (59N)
  • Directional Control of Overcurrent & Earth Fault (67)


  • Trip & Close Circuit Supervision (74T/CCS)
  • VT Supervision (60VTS)
  • Inrush Detector (81HBL2)
  • Circuit Breaker Fail (50BF)



    • Primary/Secondary Current Phases and Earth Direction
    • Primary/Secondary Line and Phase Voltages
    • Apparent Power and Power Factor
    • Real and Reactive Power
    • W Hr & VAr Hr Forward and Reverse
    • Historical Demand Record
    • Positive Phase Sequence (PPS) Voltage & Current
    • Negative Phase Sequence (NPS) Voltage & Current
    • Zero Phase Sequence (ZPS) Voltage


Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Phone :+918068092899
Mr Piyush Lalchand Rathi (Partner)
Mobile :918068092899
Mr. Dnyanesh Gawande (Partner)
Mobile :918068092899