VIOX VM1-400L/4300 Multi-Purpose Industrial MCCB Moulded Case Circuit Breaker
Overview
The VIOX VM1-400L/4300 is a high-performance Multi-Purpose Industrial Moulded Case Circuit Breaker (MCCB) designed for AC 50/60Hz power distribution networks. With a rated insulation voltage of 800V, rated operation voltage of 690V, and rated operation current up to 400A, this MCCB offers exceptional protection against overload, short circuit, under voltage, and other faults in industrial settings.
Key Features
- Compact design for space-efficient industrial installations
- High breaking capacity for enhanced protection
- Short arcing time for improved safety
- Suitable for both vertical and horizontal installation
- Compatible with various accessories (alarm contact, shunt release, auxiliary contact)
- Compliant with IEC60947-2 and GB140482 standards
Technical Specifications
- Model: VM1-400L/4300
- Frame rating: 400A
- Rated current (In): 225A, 250A, 315A, 350A, 400A
- Rated insulation voltage: 800V
- Rated operation voltage: 690V
- Rated ultimate breaking capacity (Icu): 50kA at 400V, 15kA at 690V
- Rated service breaking capacity (Ics): 35kA at 400V, 8kA at 690V
- Number of poles: 3P, 4P
- Arcing distance: ≤100mm
Operating Conditions
- Installation altitude: ≤2000m
- Ambient temperature range: -5°C to +40°C (24-hour average ≤+35°C)
- Relative humidity: ≤50% at +40°C, up to 90% at lower temperatures
- Pollution level: Class 3
Product Categories
- Breaking capacity: Standard type (S), Higher breaking capacity type (H)
- Connection mode: Front board, Back board, Plug-in type
- Operation mode: Direct handle, Rotation handle, Electrical operation
- Number of poles: 3P, 4P
- Available accessories: Alarm contact, Auxiliary contact, Shunt release, Under voltage release
Tripping Characteristics
Power Distribution Protection
| Test Current | I/In | Test Time | Initial State |
|---|---|---|---|
| Non-tripping current | 1.05In | 2h | Cold state |
| Tripping current | 1.3In | 2h | Immediately after non-tripping test |
Motor Protection
| Setting Current | Conventional Time | Initial State | Note |
|---|---|---|---|
| 1.0In | >2h | Cold state | |
| 1.2In | ≤2h | Immediately after 1.0In test | |
| 1.5In | ≤8min | Cold state | 225≤In≤630 |
| 7.2In | 6s≤T≤20s | Cold state | 225≤In≤630 |
Instantaneous operation characteristic: 10In±20% for power distribution, 12In±20% for motor protection.
Applications
- Heavy industrial power distribution systems
- Manufacturing facilities
- Mining operations
- Oil and gas installations
- Large commercial buildings
- Data centers and telecommunication facilities
Advantages
- Versatile protection for high-current industrial applications
- High breaking capacity for enhanced safety in demanding environments
- Adaptable to various installation requirements
- Energy-efficient operation for sustainable industrial processes
- Accurate fault detection and quick response for equipment protection
- Compliant with international standards for quality assurance
Quality Assurance
VIOX is committed to providing high-quality MCCBs that meet international standards. Our products undergo rigorous testing to ensure reliability, safety, and long-term performance in various industrial electrical installations.
