Siemens 3VL9400-3MQ00 Rotary Handle

Siemens 3VL9400-3MQ00 Rotary Handle / Operating Mechanism

Product Overview

The Siemens 3VL9400-3MQ00 is a motorized rotary operating mechanism with stored-energy mechanism designed for Siemens SENTRON VL400 molded case circuit breakers (MCCB). It enables remote electrical operation of circuit breakers and provides reliable ON/OFF switching control for industrial power distribution systems.

Note: This model is not a simple manual rotary handle; it is a motorized operating mechanism accessory with spring energy storage.

Main Specifications

• Manufacturer: Siemens
• Model: 3VL9400-3MQ00
• Product Type: Motorized Rotary Operating Mechanism
• Series: SENTRON VL400
• Operating Type:
  • Motorized operation
  • Stored-energy spring mechanism
• Control Voltage:
  • 220–250 VAC/DC
• Typical Break Time:
  • Approx. 5 seconds
• Operating Frequency:
  • Up to 120 operations/hour
• Protection Rating:
  • IP30
• Control Power:
  • Approx. 200 VA
• Mounting:
  • Internal accessory installation on MCCB

Advantages & Features

• Enables remote ON/OFF operation of circuit breakers
• Spring energy storage ensures reliable switching action
• Improves operator safety by reducing manual operation
• Designed for Siemens VL400 MCCB systems
• Compact structure for easy installation
• High mechanical reliability for frequent switching
• Suitable for industrial power distribution applications

Applications

• Industrial switchboards
• Motor control centers (MCC)
• Power distribution cabinets
• Factory automation systems
• Energy management systems
• Electrical control panels
• Remote circuit breaker control systems

Important Notes

• Confirm compatibility with Siemens VL400 series breakers before installation.
• Verify control voltage is 220–250 VAC/DC.
• Ensure correct mechanical coupling with the breaker.
• Disconnect power before installation or maintenance.
• Follow Siemens installation instructions for safe operation.