Key Specifications

Electrical Parameters

• Control supply voltage: 220~250 V AC / DC universal
• Energy storage charging time: Max 5 seconds
• Working cycle: Full energy storage → closing → opening cycle
• Control signal: Remote close / remote trip control via external relay/PLC dry contact
• Mechanical endurance: ≥10,000 electric switching cycles

Compatibility & Mechanical

• Matching breaker: 3VL4 frame (VL400 series) MCCB
• Mounting: Snap-on internal accessory installed on the right side of VL400 circuit breaker
• Net weight: ~4.59 kg
• Protection grade: IP20 (cabinet internal installation only)
• Operating ambient temperature: 0℃ ~ +40℃; storage -40℃ ~ +70℃
• Max installation altitude: 1000m without derating
• Certifications: CE, RoHS compliant, made in Germany

Structure Features

1. Built-in charging motor + energy storage spring; motor automatically winds the spring after power-on
2. Retain manual operating handle for emergency local operation during power failure
3. Mechanical interlock: Can only perform closing action after full energy storage to avoid misoperation
4. Auxiliary contact signal output: Feedback energy storage complete / breaker closed / tripped status to PLC/HMI

Main Functions

1. Remote automatic closing & tripping
    
   Receive PLC or control system electric signal to automatically charge energy and close the main circuit breaker; remote trip signal realizes fast power cut-off, realizing unattended power distribution control.
2. Dual-power ATS automatic switching
    
   Cooperate with two VL400 main breakers to complete automatic switch between mains and standby power, improve power supply reliability.
3. Centralized remote cabinet control
    
   Centralized monitoring and operation of multiple distribution cabinets in the control room without on-site manual pull handle.
4. Emergency manual backup operation
    
   When control power fails, the front hand crank can manually charge energy to close/open the breaker, no power dependency for maintenance.
5. Status signal feedback
    
   Built-in auxiliary switches upload energy storage completion, closing and fault trip signals to upper automation system for visual HMI display and fault alarm.

Advantages

• AC/DC universal 220–250V wide voltage, adapt to industrial AC control and DC power supply cabinet
• Stored energy spring structure achieves instant closing action, stable switching performance independent of instantaneous motor power
• Perfect matching with all specifications of VL400 frame MCCB, unified cabinet layout accessories
• Dual electric + manual operation mode, meet power supply maintenance safety standards
• Mechanical interlock anti-misoperation design, prevent half-energy storage false closing risk
• Complete status signal feedback, convenient for intelligent power monitoring system integration
• Durable motor and spring structure, long service life for 24-hour continuous power distribution occasions