Description
The SNS series molded case circuit breaker is a classic low-voltage power distribution protection device, specifically designed for AC 50/60 Hz circuits. It features a rated operating voltage up to 690 V AC and a rated current range of 16A to 630 A,making it suitable for power distribution systems in industrial, commercial, and residential applications. With reliable overload, short-circuit, and undervoltage protection functions, the device ensures safe circuit operation and supports frequent switching operations to meet diverse application requirements.
Core Features
Compact and Durable Design
- Space-saving: Modular structure enables easy integration into distribution panels or control cabinets, optimizing space utilization.
- High-strength materials: Flame-retardant plastic housing and corrosion-resistant components ensure long-term stability in harsh environments such as high humidity or dusty industrial settings.
High Performance and Safety
- Rapid fault interruption: Effectively handles short-circuit faults to minimize damage from fault currents.
- Reliable tripping mechanism: Offers thermal-magnetic trip (thermal + magnetic) or optional electronic trip for precise overload and short-circuit protection.
- Safety enhancements: Optimized contact spacing improves insulation performance; short arc distance design reduces arc risk, enhancing operational safety.
Broad Compatibility and Flexibility
- International compliance: Certified to IEC 60947-2 and UL 489 standards, meeting global electrical regulations.
- Multi-pole configurations: Available in 3-pole (3P) and 4-pole (4P) versions to accommodate single-phase and three-phase circuits.
- Expandable functionality: Supports manual/electric operating mechanisms and plug-in/removable mounting for easy maintenancem and upgrades.
Typical Applications
- Industrial: Production line power distribution, motor protection, automated control systems.
- Commercial buildings: Main and zone power distribution in offices and shopping malls.
- Residential projects: Power allocation and protection in large communities and apartment complexes.Environmental Requirements To ensure stable operation, adhere to the following conditions.
- Altitude: Installation altitude not exceeding 2000 meters (consult the manufacturer for higher altitudes).
- Ambient temperature: -25°C to +70°C (24-hour average ≤40°C).
- Standard type:Adjust protection parameters under extreme temperatures.
- Humidity: Relative humidity ≤95% (non-condensing), avoid corrosive gases or explosive environments.
