As global energy systems evolve towards digitalization and high reliability, MUTAI Electric is proud to launch the CMTW1 Series Intelligent Air Circuit Breaker (ACB) — a high-performance power protection solution tailored for modern low-voltage power distribution networks.
Intelligent Protection with Precision and Flexibility
The CMTW1 series is designed for AC 50/60Hz systems with rated operational voltages up to 690V and currents from 400A to 6300A. Engineered to prevent overload, short-circuit, phase failure, and grounding faults, this breaker integrates multi-stage adjustable protections, ensuring fine-tuned safeguarding of distribution systems.
The series supports advanced communication interfaces for integration with digital energy management systems. Key protection modes include:
·Long-time delay (Ir1)
·Short-time delay (Ir2)
·Instantaneous (Ir3)
·Ground fault protection
Each mode is adjustable or optionally disabled, allowing custom configuration for industrial environments, especially those requiring high uptime and precision control.
Optimized for Harsh and Demanding Environments
Installation and environment features:
·Operating temperature: -5°C to +40°C
·Altitude: up to 2000m (derating required above)
·Pollution degree: Class 3
·Dielectric strength: Up to 12kV impulse withstand
·Protection grade: IP40 (with enclosure)
The device is suitable for motor protection, frequent start/stop cycles, and power grid grounding protection under 400V systems.
Key Performance Parameters
| Parameter | Value |
|---|---|
| Rated insulation voltage (Ui) | 1000V |
| Rated ultimate short-circuit breaking capacity (Icu) | Up to 120kA @ 400V |
| Rated service short-circuit breaking capacity (Ics) | Up to 100kA |
| Electrical lifespan | 1000 operations |
| Mechanical lifespan | Up to 10,000 operations (with maintenance) |
For full performance metrics, refer to the detailed technical chart above.
Application Scenarios
The CMTW1 series is ideal for:
·Industrial power distribution
·Infrastructure and smart grid
·Heavy machinery and motor systems
·Energy-intensive environments with frequent operations
Certifications and Compliance
·Certified by China Compulsory Certification (CCC)
·Designed in compliance with IEC/GB standards
·Featuring patented mechanical and appearance structure
For further information or technical consultation, feel free to contact our engineering support team or visit our official website.
MUTAI Electric – Focus on Your Value.
Post time: May-24-2025
