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Home » Products » Siemens Reyrolle Numerical Relay » 7SR105 Motor Protection Relay

7SR105 Motor Protection Relay

7SR105 Motor Protection Relay
7SR105 Motor Protection Relay
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Product Code : 7SR105
Price And Quantity
  • Minimum Order Quantity
  • 1 Piece Unit
  • Price Or Price Range
  • INR
Product Description

The 7SR105 Rho motor protection relay is developed by using the latest generation of hardware technology.7SR105 is a member of Siemens Reyrolle protection devices Rho product family. 
The 7SR105 Rho motor protection relay is housed in a 4Uhigh, size 4 non draw-out case and these relays provide protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electricalRS485 port for remote connection.

Protection Function 

  • 14 Stall Protection 
  • 46 Phase Unbalance Protection49 Thermal Overload48/66 Start Protection37 Undercurrent50 Instantaneous Over current Protection 
  • 50N/G Instantaneous Earth Fault 
  • 51 Time Delayed Over current Protection 
  • 51N/G Time Delayed Derived/Measured Earth Fault Protection
  • Supervision 
  • 74 T/CCS Trip and Close Circuit Supervision81B Anti Backspin46PhRev Phase Reversal
  • 50BCL Breaking Capacity Limit
  • 50BF Circuit Breaker Fail


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