The MT/MVS series air circuit breaker is a premium low-voltage protection device designed for demanding industrial and commercial applications. With a current range spanning from 630A to 6300A and exceptional breaking capacity reaching 150kA, this breaker delivers reliable performance in critical power distribution systems.
Our circuit breakers incorporate advanced Micrologic release technology that provides real-time monitoring of electrical parameters including current, voltage, and fault recording. This intelligent system enables remote control capabilities and seamless integration with modern power management platforms like EcoStruxure.
The robust modular construction ensures long-term reliability, with options for either electronic or thermal magnetic protection. Each unit undergoes rigorous testing to guarantee performance through tens of thousands of operations without compromise.
Key protection features include:
- Overload protection
- Short circuit protection
- Ground fault protection
- Selective coordination capabilities
The design allows for flexible expansion with communication modules including Modbus and Ethernet compatibility. Additional auxiliary contacts can be easily incorporated based on specific application requirements.
Technical highlights:
- High-temperature resistant, flame-retardant casing
- Premium copper-plated silver alloy contacts
- Thick copper-plated silver busbars
- PCB reliability verified through 48-hour aging tests
Installation is simplified with standardized connection terminals that can be rotated 90 degrees for horizontal or vertical busbar configurations. Models from 800A to 6300A feature consistent terminal designs for easy integration.
Each unit undergoes comprehensive testing including:
- Mechanical operation tests for smooth closing/opening
- Insulation resistance measurements (≥1MΩ)
- Power frequency withstand voltage tests (2500V/1min)
- Contact resistance verification (micro-ohm level)
- Protection function validation
Certifications include ISO9001, CE, and CCC, ensuring compliance with international standards for quality and safety.