Purpose & Functionality

• Dual Mode: Operates as either an undervoltage or overvoltage relay.
• Self-Powered: Draws its supply directly from the monitored system.
• Energy Backup: Built-in capacitor keeps it running for ~5 seconds during voltage loss.

 Adjustable Parameters

• Response Value (Y): Set the voltage threshold for triggering.
• Response Delay: Adjustable from 0.3 to 5 seconds.
• Hysteresis (Hy): Prevents relay chatter by adding a buffer (~3–4% of rated voltage).
• Release Delay: Fixed at 0.5 seconds.

 Indicators & Controls

• LEDs:
  • Green: Power ON
  • Red: Alarm (voltage deviation)
• Test Button: For manual diagnostics.
• Alarm Relay: Two changeover contacts for signaling.

 Installation & Safety

• Mounting: DIN rail or screw mount.
• Protection: Transparent dust cover.
• Safety Note: Installation must be done by qualified personnel, following Bender’s safety guidelines.

 Technical Specs