Woodward MRU3-11D Voltage Relay

Applications

The Woodward MRU3-11D Voltage Relay is designed to provide precise voltage monitoring and protection for industrial and marine electrical systems. It detects overvoltage, undervoltage, and abnormal voltage conditions to protect generators, motors, and critical electrical equipment. Ideal for industrial plants, marine vessels, and power generation systems requiring reliable voltage control.

Advantages

• Accurate Voltage Monitoring: Detects and responds to overvoltage and undervoltage conditions with precision.
• Protects Critical Equipment: Safeguards generators, transformers, and industrial systems from electrical faults.
• Rugged Construction: Built to withstand harsh industrial and marine environments including vibration and temperature variations.
• Seamless Integration: Works with Woodward control modules, ATS systems, and generator sets for comprehensive system protection.
• Compact and Efficient: Space-saving design suitable for panel or DIN rail mounting without compromising reliability. 

Technical FAQs

1. Q: What voltage ranges does the MRU3-11D support?
   A: Designed for low and medium voltage AC systems commonly used in industrial and marine applications.
2. Q: How quickly does it respond to abnormal voltage conditions?
   A: Response occurs within milliseconds to protect connected equipment.
3. Q: Can it integrate with other Woodward control modules?
   A: Yes, fully compatible with generator controllers, ATS controllers, and operator interfaces.
4. Q: Is it suitable for harsh industrial or marine environments?
   A: Yes, rated for -20°C to 70°C and resistant to vibration, shock, and industrial conditions.
5. Q: What mounting options are available?
   A: Supports both panel and DIN rail mounting for versatile installation.
6. Q: Does it provide relay outputs for alarms or trips?
   A: Yes, configurable relay outputs allow alarms or protective shutdowns during voltage faults.
7. Q: Can it operate in multi-unit systems?
   A: Yes, multiple relays can be networked to monitor complex electrical systems.
8. Q: Does it support testing or calibration?
   A: Yes, built-in procedures enable testing and calibration for accurate operation.
9. Q: What is the operating voltage for the control circuit?
   A: Operates on 24–48V DC for control and monitoring purposes.
10. Q: Does it meet industrial standards?
    A: Yes, compliant with IEC and IEEE standards for voltage protection and relay operation.