GDDC3-63 DC MCB Overview
The GDDC3-63 DC MCB is a reliable DC miniature circuit breaker designed for photovoltaic systems and other low-voltage DC applications that require stable overload and short circuit protection. This GDDC3-63 DC MCB is suitable for solar DC circuits, communication systems, battery-related DC protection circuits, and industrial DC control systems. With a rated current range from 10A to 63A and a rated voltage up to 1000V DC, the GDDC3-63 DC MCB provides flexible protection options for multiple system designs.
Built for DIN rail installation, the GDDC3-63 DC MCB combines compact structure, clear contact indication, and dependable tripping performance. It complies with IEC/EN60947-2 and is available with B, C, and D trip curves, allowing buyers to choose a suitable release characteristic for different load conditions.
This GDDC3-63 DC MCB series is available in 1P, 2P, 3P, and 4P configurations. Standard voltage options include 1P 250V DC, 2P 500V DC, 3P 750V DC, and 4P 1000V DC. According to the product configuration shown in your materials, a 2P 1000V DC version is also available for photovoltaic system requirements.
Product Features
- 6kA breaking capacity for dependable DC circuit protection
- Rated current range from 10A to 63A for multiple application needs
- 1P, 2P, 3P and 4P options for flexible system design
- Voltage options up to 1000V DC for photovoltaic and DC distribution systems
- B, C and D trip curves for different load characteristics
- Clear contact position indication for easy operation checking
- DIN rail mounting for fast panel installation
- Support for accessories such as auxiliary contact, alarm contact, shunt release and under voltage release
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | GDDC3-63 |
| Product Type | DC Miniature Circuit Breaker |
| Focus Keyword | GDDC3-63 DC MCB |
| Rated Current | 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Pole | 1P, 2P, 3P, 4P |
| Rated Voltage Ue | 1P 250V DC / 2P 500V DC / 3P 750V DC / 4P 1000V DC |
| Optional Special Version | 2P 1000V DC |
| Insulation Voltage Ui | 1000V |
| Rated Frequency | 50/60Hz |
| Rated Breaking Capacity | 6000A |
| Rated Impulse Withstand Voltage Uimp | 6kV |
| Dielectric Test Voltage | 2kV |
| Trip Curve | B, C, D |
| Electrical Life | 8000 operations |
| Mechanical Life | 10000 operations |
| Contact Position Indicator | Yes |
| Protection Class | IP20 |
| Reference Temperature | 30°C |
| Ambient Temperature | -5°C to +40°C |
| Storage Temperature | -25°C to +70°C |
| Terminal Connection Type | Cable / U-type busbar / Pin-type busbar |
| Terminal Size Top/Bottom for Cable | 25mm² |
| Tightening Torque | 2.5 N·m |
| Mounting | DIN rail FN60715 (35mm) |
| Connection | Top and bottom |
| Auxiliary Contact | Yes |
| Alarm Contact | Yes |
| Shunt Release | Yes |
| Under Voltage Release | Yes |
| Standard | IEC/EN60947-2 |
Available Models
| Model / Configuration | Pole | Rated Voltage |
|---|---|---|
| GDDC3-63-1P-250V | 1P | 250V DC |
| GDDC3-63-2P-500V | 2P | 500V DC |
| GDDC3-63-3P-750V | 3P | 750V DC |
| GDDC3-63-4P-1000V | 4P | 1000V DC |
| GDDC3-63-2P-1000V | 2P | 1000V DC |
Example image folders you provided include: GDDC3-63-C20-1P-250V, GDDC3-63-C32-2P-500V, GDDC3-63-C40-3P-750V, GDDC3-63-C63-4P-1000V, and GDDC3-63-2P-1000V.
Applications
The GDDC3-63 DC MCB is widely used in DC protection systems where safe switching and circuit isolation are important. Typical applications include:
- Solar photovoltaic power systems
- PV combiner boxes
- DC distribution boxes
- Battery energy storage systems
- Communication power systems
- Industrial DC control cabinets
- Renewable energy equipment
- DC protection for inverters and related auxiliary circuits
Why Choose GA&DA GDDC3-63 DC MCB?
The GDDC3-63 DC MCB is a practical choice for buyers who need a stable, compact, and export-ready DC circuit breaker for photovoltaic applications. GA&DA provides consistent manufacturing quality, flexible current and pole options, and configuration support for OEM and project buyers. This GDDC3-63 DC MCB offers 6kA breaking capacity, up to 1000V DC rated voltage, multiple trip curves, and useful accessory compatibility. For distributors, panel builders, wholesalers, and solar equipment buyers, the GDDC3-63 DC MCB helps simplify procurement while meeting common DC protection requirements.
FAQ
What is the GDDC3-63 DC MCB used for?
The GDDC3-63 DC MCB is used for overload and short circuit protection in photovoltaic systems, DC distribution systems, communication systems, and other DC power applications.
What current range is available for the GDDC3-63 DC MCB?
The GDDC3-63 DC MCB is available in 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A.
What pole options are available?
The GDDC3-63 DC MCB is available in 1P, 2P, 3P, and 4P versions. A 2P 1000V DC version is also available according to the supplied product information.
What is the breaking capacity of the GDDC3-63 DC MCB?
The GDDC3-63 DC MCB has a 6kA breaking capacity.
What standards does the GDDC3-63 DC MCB meet?
The GDDC3-63 DC MCB is manufactured according to IEC/EN60947-2.
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