SCHNEIDER 33662 Circuit Breaker Accessory (MX Voltage Release)

Product Overview

The SCHNEIDER 33662 is a ComPacT circuit breaker voltage release (MX opening release / shunt trip accessory) designed for Schneider Electric ComPacT NS630b to NS3200 series circuit breakers. It allows remote tripping (opening) of the circuit breaker through an external control signal, improving safety and automation control capability.

It is mainly used as an internal accessory installed inside the circuit breaker to provide remote opening control for emergency shutdown, protection systems, and automated power management applications.

Technical Specifications

• Brand: SCHNEIDER ELECTRIC
• Model: 33662
• Type: MX Voltage Release / Shunt Trip Release
• Product Function: Circuit breaker remote opening accessory
• Compatible Range:
  • ComPacT NS630b...1600
  • ComPacT NS1600b...3200
  • MasterPact NT/NW accessory applications
• Control Voltage:
  • 200…250 V AC 50/60 Hz
  • 200…250 V DC
• Mounting: Fixed internal installation
• Release Type: Instantaneous opening coil
• Response Time: Approx. 50 ms (depending on breaker type)
• Control Application: Remote circuit breaker opening
• Accessory Category: Circuit breaker spare/accessory part

Advantages & Features

• Original Schneider Electric circuit breaker accessory
• Enables remote ON/OFF safety control
• Fast circuit breaker opening response
• Improves system safety and operational flexibility
• Easy integration into power management systems
• Compact internal mounting design
• Suitable for high-current circuit breaker applications
• Reliable operation in industrial environments

Applications

• Industrial power distribution systems
• Electrical switchboards
• Emergency shutdown systems
• Factory automation power control
• Energy management systems
• Data center power protection
• Large motor control centers
• Building electrical protection systems

Precautions

• Confirm compatibility with the specific Schneider circuit breaker model before installation
• Verify control voltage (200–250 V AC/DC) before connection
• Disconnect power before installing or replacing the accessory
• Ensure correct wiring of the opening coil
• Test remote tripping function after installation
• Installation should be performed by qualified electrical personnel