DC Miniature Circuit Breaker for Solar PV
This DC miniature circuit breaker is designed for solar photovoltaic (PV) systems. It provides essential protection against overcurrent and short circuit faults.





Technical Specifications
Product Overview
High-Performance DC Protection
The MDB1Z-63 series is a reliable DC Miniature Circuit Breaker specifically engineered for solar PV systems, offering robust protection against overcurrent and short circuits. Its compact design makes it an ideal choice for installations with limited space, such as residential and commercial electrical setups. Featuring an advanced arc extinguishing system and thermal-magnetic trip technology, this breaker ensures the safety and longevity of your solar power infrastructure.

Key Performance Metrics
Key Performance Metrics
Electrical Specifications
Rated Operating Voltage
- 12V
- 24V
- 48V
- 300V
- 600V
- 900V
- 1200V
Available Rated Currents
- 10A
- 16A
- 20A
- 25A
- 32A
- 40A
- 50A
- 63A
- Poles
- 1P2P3P4P
- Trip Unit Type
- Thermal-magnetic
- Curve Type
- C

Durability & Service Life
- Mechanical Endurance
- 20000 cycles
- Electrical Endurance
- 2500 cycles
Installation & Environment
Wiring Capacity
| Rated Current (In) | Cable Cross Section |
|---|---|
| ≤ 32A | 1.5 - 6 mm² |
| ≥ 40A | 10 - 16 mm² |
- Operating Temperature
- -20°C to +70°C
- Mounting Type
- Standard DIN Rail
- Max Operating Altitude
- 2000 m

Compliance
International Standards

Physical Dimensions
- Unit Dimensions
- 81mm (H) x 36mm (W) x 66mm (D)




