Siemens Reyrolle 7SR158 Voltage & Frequency Relay

Siemens Reyrolle 7SR158 Voltage & Frequency Relay Argus – 3xV

The Siemens Reyrolle 7SR158 Voltage & Frequency Relay & Earth Fault Relay is a reliable numerical protection device designed for modern power systems. Built with advanced protection features, it ensures accurate fault detection, system stability, and improved operational safety.

Available in Mumbai through trusted suppliers, distributors, and stockists, the Reyrolle 7SR158 Argus relay is widely used for overcurrent and earth fault protection in industrial, utility, and commercial applications.

As a genuine Siemens protection relay, it delivers long-lasting performance, easy integration into control panels, and flexible configuration options to meet diverse protection needs. Customers in Mumbai can benefit from:

• Authentic Siemens relays with full technical specifications
• Competitive pricing and bulk order options
• Quick delivery across Mumbai and nearby regions
• Expert guidance and after-sales support from trusted suppliers

Protection functions

• Under/over voltage
• Under/over frequency
• Rate of change of frequency
• Negative phase sequence voltage
• Neutral voltage displacement
• Voltage vector shift

Supervision functions

• Trip and closed-circuit supervision
• Lockout

Monitoring functions

• Primary/secondary line and phase voltages
• Historical demand record
• Positive phase sequence (PPS) voltage
• Negative phase sequence (NPS) voltage
• Zero phase sequence (ZPS) voltage

Further functions

• Four setting groups
• 2-level password protection
• Self monitoring
• Circuit breaker trip and maintenance counters
• Fault, event, and waveform records
• Programmable user logic
• User alarms
• Virtual inputs/outputs
• Front USB communication port
• Rear RS485 communication port

Whether you are looking to buy the Siemens Reyrolle 7SR158 Argus relay in Mumbai or need a reliable partner for ongoing supply, we provide end-to-end support to ensure your protection systems run smoothly.