# Saudi Arabia Solar PV Project – DC MCB
## Project Overview
**Location:** Riyadh, Saudi Arabia
**Industry:** Renewable Energy / Solar Power
**Products Supplied:** NB1-63DC Series DC Miniature Circuit Breakers
**Quantity:** 2,000 units
**Application:** Solar PV combiner boxes for 50MW solar farm
## Project Requirements
The EPC contractor needed DC protection devices for a large-scale solar installation:
– Voltage rating: 1000V DC
– Current range: 16A-63A
– Breaking capacity: 10kA minimum
– Certifications: IEC 60947-2, UL 489B
– Operating temperature: -40°C to +70°C
## Solution Provided
We supplied **Chint NB1-63DC Series DC MCBs** for string protection:
| Specification | Details |
|————–|———|
| Voltage Rating | 250V/500V/1000V DC |
| Current Range | 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Poles | 1P, 2P, 4P |
| Breaking Capacity | 10kA @ 1000V DC |
| Trip Curve | C-Curve |
| Certification | IEC 60947-2, CE, TUV |
## Project Results
✅ **Project Scale:** 50MW solar farm with 200+ combiner boxes
✅ **Installation:** Completed within project timeline
✅ **Performance:** Reliable protection under desert conditions
✅ **Certification:** Full compliance with local grid connection requirements
## Technical Highlights
– **High Voltage DC Breaking:** Specialized arc chutes for 1000V DC
– **Temperature Resistant:** Operation verified at +70°C ambient
– **Bi-directional Protection:** Handles reverse current during faults
– **Compact Design:** Space-saving for combiner box integration
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**Products Featured:** NB1-63DC 1P/2P/4P DC Miniature Circuit Breakers
**[View DC MCB Products →]** | **[Request Solar Project Quote →]**