WOODWARD BU1AC110 Control Module

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• WOODWARD BU1AC110 AC Voltage Monitoring Relay

  Product Overview

  The Woodward BU1AC110 is an AC voltage monitoring relay designed to protect electrical systems against abnormal voltage conditions. It continuously monitors the supply voltage and detects overvoltage and undervoltage conditions, providing relay output signals for protective switching and alarm functions.

  Technical Specifications

  Parameter	Specification
  Brand	Woodward
  Model	BU1AC110
  Product Type	AC Voltage Monitoring Relay
  Series	Basic Line
  Rated Voltage	110 VAC
  Monitoring Function	Overvoltage / Undervoltage
  System Type	AC Voltage Monitoring
  Auxiliary Power	Self-powered from measured voltage
  Mounting	DIN Rail
  Application	Electrical System Protection

  Key Features

  • Monitors AC voltage conditions.

  • Overvoltage and undervoltage detection.

  • Integrated relay switching output.

  • Self-powered operation without a separate auxiliary supply.

  • LED status indication.

  • Compact industrial protection relay design.

  Applications

  • Generator protection systems.

  • Industrial electrical distribution.

  • AC power supply monitoring.

  • Motor and machinery protection.

  • Power generation and automation systems.

  Important Notes

  • This is a voltage protection relay, not a PLC control module.

  • Designed for the 110 VAC version; verify the actual system voltage before installation.

  • Confirm wiring configuration and relay settings before use.

  • Check the nameplate and revision for exact specifications.

The structure and details of the product：

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