Schneider 33671 | voltage release MN – 200..250 V DC/AC 50/60 Hz

Technical Specifications

• Manufacturer: Schneider Electric

• Product Reference: 33671

• Device Type: Voltage Release Unit (MN)

• Voltage Range: 200-250V AC/DC

• Frequency: 50/60 Hz

• Rated Voltage (Ue): 200V to 250V

• Operating Voltage:

  • For AC: 200-250V AC

  • For DC: 200-250V DC

• Functionality:

  • Disconnects the circuit breaker in the event of undervoltage or overvoltage

  • Prevents the breaker from reconnecting until the voltage returns to safe operating levels

• Type of Protection: Overvoltage and undervoltage protection for electrical circuits

• Mounting Type: Directly onto compatible circuit breakers

• Compatibility: Designed for use with Schneider Electric circuit breakers in the ComPact series and similar devices

• Standards Compliance: IEC 60947-5-1, IEC 60947-2

• Operating Temperature Range: -25°C to +70°C

Key Features

• Overvoltage and Undervoltage Protection
  This voltage release unit ensures that the circuit breaker is automatically disconnected if the voltage exceeds or falls below the specified range of 200-250V, safeguarding the electrical system from potential damage.

• Dual Voltage Compatibility
  It is versatile in that it supports both AC and DC voltage systems within the 200-250V range, making it suitable for a variety of applications across different electrical networks.

• Reliable and Safe Operation
  Designed to prevent the circuit breaker from closing when the voltage is outside the normal operating range, reducing the risk of electrical faults, fire, or equipment damage.

• Compact and Easy Installation
  Mounts directly onto the circuit breaker, providing a simple, space-saving solution for integrating undervoltage and overvoltage protection.

• Wide Frequency Range
  Operates on both 50Hz and 60Hz systems, making it suitable for use in global applications across different power grid standards.

Applications

• Industrial Electrical Systems
  Ideal for protecting critical machinery, control circuits, and industrial equipment from the risk of voltage fluctuations.

• Building and Infrastructure Installations
  Provides voltage protection in large buildings, commercial spaces, or public infrastructure, ensuring the safety of electrical installations.

• Energy Systems
  Used in power distribution panels, transformers, and generators to prevent damage from voltage spikes or drops.

• Renewable Energy Installations
  Suitable for solar, wind, and battery storage systems, where voltage regulation is essential for maintaining the safety and performance of the system.

• Automated Control Systems
  Ensures reliable and safe operation of control panels, PLCs, and other automation equipment by disconnecting them in the event of unsafe voltage levels.