Solar PV DC Miniature Circuit Breaker NBL7-63
Solar PV DC Miniature Circuit Breaker NBL7-63
The NBL7-63 DC miniature circuit breaker delivers reliable overcurrent and short-circuit protection for direct current control circuits, solar photovoltaic arrays, and electrical equipment. Engineered with a durable, impact-resistant thermoplastic shell that is self-extinguishing and recyclable, it ensures superior safety and flame-retardant performance under demanding operating conditions.
Featuring classic U-tunnel terminals, this circuit breaker guarantees solid and vibration-resistant wire connections. Its specialized internal airflow design effectively minimizes heat buildup between adjacent units, while the ergonomic safety handle provides smooth manual disconnection and clear circuit status indication.
Key Features
| Product Type | DC Miniature Circuit Breaker |
| Model | NBL7-63 |
| Material | Thermoplastic, Copper |
| Breaking Capacity | 6 kA |
| Tripping Characteristic | Type C Curve |
| Protection Degree | IP20 |
| Rated Frequency | 50/60 Hz |
| Standard | IEC 60947-2 |
| Operating Temperature | 23°F to 104°F (-5°C to +40°C) |
| Electrical Durability | ≥ 8,000 cycles |
| Mechanical Durability | ≥ 20,000 cycles |
| Color | White |
| Product Weight | 0.4 lb |
Highlights
- Thermoplastic shell, full inlet, impact resistant, recyclable, self-extinguishing.
- Classic U-tunnel terminal design ensures solid and reliable line connections.
- Air flow design effectively reduces temperature between adjacent circuit breakers.
- Ergonomic safety handle design.
Compatibility
Compatible with standard DIN rail enclosures, solar PV combiner boxes, DC distribution panels, and direct current electrical control systems operating within rated voltage and current limits.
Frequently asked questions
|
