Siemens Reyrolle 7SR45 Argus Relay – Feeder Protection (4xI)
The Siemens Reyrolle 7SR45 Argus Relay is a high-performance, non-directional feeder protection relay designed for industrial networks and utility systems. With self-powered or dual-powered operation, it ensures accurate fault detection, reliability, and protection against overcurrent and earth faults.Trusted by engineers and EPC contractors, it provides efficient operation, flexible integration, and durable performance for modern power systems
Technical Specifications
Thermal Overload Protection (49)
Instantaneous Overcurrent (50)
Instantaneous Derived Earth Fault (50N)
Instantaneous Measured Earth Fault (50G)
Time-Delayed Overcurrent (51)
Time-Delayed Derived Earth Fault (51N)
Time-Delayed Measured Earth Fault (51G)
Line Check / Switch-On-to-Fault (SOTF)
Inrush Restraint
Self or Dual Powered Operation
Compact 4xI Input Design
Supported by Siemens-authorized local service
Available in Mumbai with fast delivery
Instantaneous Overcurrent (50)
Instantaneous Derived Earth Fault (50N)
Instantaneous Measured Earth Fault (50G)
Time-Delayed Overcurrent (51)
Time-Delayed Derived Earth Fault (51N)
Time-Delayed Measured Earth Fault (51G)
Line Check / Switch-On-to-Fault (SOTF)
Inrush Restraint
Self or Dual Powered Operation
Compact 4xI Input Design
Supported by Siemens-authorized local service
Available in Mumbai with fast delivery
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