ARM6DC-250A-4300 1500V DC Molded Case Circuit Breaker for Photovoltaic Systems | 4Poles MCCB

The ARM6DC series DC molded case circuit breakers are specifically designed for centralized photovoltaic power station systems. These high-performance breakers provide reliable protection for DC circuits in solar power applications with voltage ratings up to 1500V DC.

Key Features:

1. Specialized design for photovoltaic DC applications with voltage ratings up to 1500V DC

2. Provides both overload and short circuit protection functions

3. Compact design with high breaking capacity and excellent vibration resistance

4. Ideal for use in DC combiner boxes and inverter DC sides in solar power systems

5. High protection accuracy and extended service life with mechanical endurance of 10,000 operations

Technical Specifications:

- Current shell frame: 250A

- Rated current range: 63A to 250A (multiple options available)

- 4 poles configuration

- Rated operational voltage: 1500V DC

- Ultimate short-circuit breaking capacity (Icu): 40kA

- Service short-circuit breaking capacity (Ics): 20kA

- Insulation voltage (Ui): 1500V

- Impulse withstand voltage (Uimp): 12kV

- Mechanical endurance: 7,000 operations

- Electrical endurance: 1,000 operations

Physical Dimensions:

- Structure size: 142*200*130mm (W*L*H1)

- Compact design: 142*200*108mm (W*L*H2)

Applications:

The ARM6DC series is specifically designed for photovoltaic systems where DC circuit protection is required. Typical applications include:

- Protection in DC combiner boxes

- DC side protection for string inverters

- Centralized PV power station systems

- Other solar power generation systems requiring DC circuit protection

Certifications and Standards:

- ISO9001-2000 certified

- CCC certified

- Designed to meet international standards for DC circuit protection