Protection Relays

Rishabh Protector Relays – Intelligent Electrical Protection
Rishabh protector relays are engineered to safeguard motors, generators, and electrical systems from faults, overloads, and abnormal conditions. With precise sensing, fast response, and robust construction, these relays provide reliable protection for industrial, commercial, and utility applications.

 

Key Features

  • Comprehensive Protection: Over/under voltage, over/under current, phase failure, phase sequence, frequency anomalies, earth fault, reverse power, and motor-specific protections.
  • High Accuracy: Fast and dependable fault detection for minimal downtime.
  • Customizable Settings: On-site adjustable trip points, time delays, and reset modes.
  • Rugged Build: Compact DIN-rail or panel mount design with durable, flame-retardant housing.
  • Clear Status Indication: LED trip/fault indicators for quick diagnostics.
  • Optional Communication: Select models with Modbus for remote monitoring.

Popular Models

  • 252-PAU / 252-PAO / 253-PAD / 253-PAP / 253-PAV – AC current protection (under, over, or combined) in single- or three-phase versions.
  • 252-PDU / 252-PDO / 253-PDE – DC voltage protection (under, over, or combined) for battery and DC systems.
  • PHR – Phase protection relay for phase loss, imbalance, and incorrect sequence detection.
  • AR Series – Current protection relays with under/over current and unbalance functions.
  • RISH Relay V/HZ – Single- or three-phase voltage/frequency protection with phase monitoring.
  • 256-PAT – Reverse power relay for generator and parallel system protection.

Rishabh protector relays combine precision, durability, and versatility—ensuring your electrical systems run safely, efficiently, and without interruption.