IR Protection Relays: IRI1-ES

FEATURES
  • Integration of multiple protection functions into one compact housing
  • User-friendly HMI
  • Compact design due to SMD technique
  • Static protective device
  • Earth fault detection with core balance C.T. or in Holmgreen circuit
  • Low-pass filter for suppression of harmonics
  • Coding for the self-holding function or automatic reset of the LEDs and trip relays
  • Frequency range 50/60 Hz
  • Rated current 1A or 5A
  • Output relay with 2 change-over contacts
  • Extremely large setting range for current reaction value with fine grading
  • Wide range of operation of the supply voltage (AC/DC)

IR protection relays are based on a microprocessor, and IRI1-ES use analogue technology. They present our low-priced protection relay used for all basic protection applications. The following properties of the IR protection relays, such as: Integration of multiple protection functions into one compact housing, User-friendly setting procedure by means of DIP-switches, and Compact design due to SMD-technique, are their superiority over the traditional protection systems.

The sensitive earth fault relay IRI1-ES detects high impedance earth faults with very small currents.

Sensitive earth fault current relay IRI1-ES detects high impedance faults, fast tripping for safety, and reliability. Its key advantages include sensitive current measurement for detecting small earth fault currents, a wide setting range for flexible application, and user-friendly DIP switch settings for easy configuration.

  • The relay can detect high impedance earth faults with very small currents.
  • DIP switches on the front panel for easy and user-friendly adjustment of settings.
  • Relay trips the circuit quickly to minimise damage to equipment and prevent risks like electrical shock and fire.
  • The relay is suitable for a wide range of applications where sensitive earth fault detection is required.
  • It operates over a wide range of supply voltages, both AC and DC.