The 20A DC Circuit Breaker MCB is a high-quality solar panel protection device designed for PV systems, off-grid solar setups, and DC electrical circuits. This 2-pole (2P) DC MCB provides reliable over-current protection for solar arrays, inverters, and DC loads, safeguarding your equipment from overloads, short circuits, and other electrical faults.

Engineered specifically for DC applications, this circuit breaker is ideal for direct current control circuits where branch circuit protection may already exist or is not required. Its durable design supports a rated voltage of 600VDC and a breaking capacity of 6kA, providing dependable protection for residential, commercial, and industrial solar installations.

The 20A DC MCB follows the IEC60947-2 standard, ensuring high performance, safety, and compliance with international regulations. It features a C-type characteristic curve, which is suitable for solar PV protection, providing sensitivity to current surges while preventing nuisance tripping. The device operates efficiently within a temperature range of -5℃ to +40℃ and has an IP20 enclosure class for basic protection against dust and accidental contact.

With a mechanical life of over 20,000 cycles and an electrical life of at least 8,000 operations, this DC MCB is designed for long-term durability and reliability, making it a trusted choice for solar PV systems in Bangladesh.

Specifications:

• Product Model: NBL7-63

• Poles: 2P / 2 Poles

• Rated Current: 20A

• Rated Voltage: 600VDC

• Breaking Capacity: 6kA

• Characteristic Curve: C-Type

• Working Temperature: -5℃ to +40℃

• Enclosure Class: IP20

• Standard: IEC60947-2

• Frequency: 50/60Hz

• Electrical Life: ≥ 8,000 times

• Mechanical Life: ≥ 20,000 times

• Application: Solar PV System Protection, DC Circuit Protection, Solar Array Safety, Inverter Protection

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