Description
GDDC4-63 DC MCB Overview
Le GDDC4-63 DC MCB is a high-performance nonpolarity DC miniature circuit breaker developed for overload and short-circuit protection in photovoltaic, energy storage and other low-voltage DC systems. With rated currents from 10A to 63A and system voltage configurations extending up to 1 000 V CC, it provides a flexible protection solution for modern DC distribution equipment.
A key advantage of the GDDC4-63 DC MCB is its nonpolarity design. Conventional polarized DC circuit breakers require careful attention to positive and negative terminal orientation. The nonpolarity structure provides greater wiring flexibility during panel assembly and field installation, which is particularly useful in photovoltaic and energy-storage applications.
The series supports 1P, 2P, 3P and 4P configurations, corresponding to different DC voltage levels. Standard configurations include 1P 250V DC, 2P 500V DC, 3P 750V DC and 4P 1000V DC.
With a rated breaking capacity of 6000A / 10000A, le GDDC4-63 DC MCB is positioned above lower-breaking-capacity models for applications requiring stronger fault-current interruption performance. It complies with IEC/EN60947-2 and supports B, C and D thermo-magnetic trip characteristics.
Caractéristiques du produit
Nonpolarity DC Design
Le GDDC4-63 DC MCB features a nonpolarity design that simplifies DC wiring and reduces restrictions related to positive and negative connection orientation.
Up to 10kA Breaking Capacity
A rated breaking capacity of 6000A / 10000A provides enhanced short-circuit interruption capability for demanding DC protection systems.
10A to 63A Current Range
Available rated currents include:
10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A.
This allows the GDDC4-63 series to cover multiple photovoltaic and industrial DC circuit requirements.
1P / 2P / 3P / 4P Configurations
The complete GDDC4-63 DC MCB family supports:
- 1P – 250V DC
- 2P – 500V DC
- 3P – 750V DC
- 4P – 1000V DC
B, C and D Trip Curves
B, C and D thermo-magnetic characteristics are available for matching different load and inrush-current conditions.
DIN Rail Installation
The compact modular structure is designed for standard Montage sur rail DIN de 35 mm, simplifying integration into PV combiner boxes and DC distribution cabinets.
Caractéristiques techniques
| Paramètre | Caractéristiques techniques |
|---|---|
| Marque | GA&DA |
| Modèle | GDDC4-63 |
| Type de produit | Nonpolarity DC Miniature Circuit Breaker |
| Courant nominal | 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Options de poteaux | 1P / 2P / 3P / 4P |
| Rated Voltage Ue | 1P: 250V / 2P: 500V / 3P: 750V / 4P: 1000V DC |
| Insulation Voltage Ui | 1000V |
| Fréquence nominale | 50/60 Hz |
| Capacité de coupure nominale | 6000A / 10000A |
| Impulse Withstand Voltage Uimp | 8kV |
| Tension d'essai diélectrique | 2 kV |
| Trip Curve | B / C / D |
| Durée de vie électrique | 8,000 operations |
| Durée de vie mécanique | 10,000 operations |
| Contact Position Indicator | Oui |
| Classe de protection | IP20 |
| Reference Temperature | 30°C |
| Température ambiante | de -5 °C à +40 °C |
| Température de stockage | de -25 °C à +70 °C |
| Connexion au terminal | Câble / Barre omnibus de type U / Barre omnibus à broches |
| Max. Cable Size | 25 mm² |
| Couple de serrage | 2.5 N·m |
| Montage | Rail DIN de 35 mm |
| Connexion | Top and Bottom |
| Standard | IEC/EN60947-2 |
| Auxiliary Contact | Oui |
| Alarm Contact | Oui |
| Shunt Release | Oui |
| Under Voltage Release | Oui |
Applications of GDDC4-63 DC MCB
Le GDDC4-63 DC MCB is suitable for DC systems requiring reliable protection and flexible wiring arrangements.
Parmi les applications courantes, on peut citer :
- Solar photovoltaic systems
- Boîtiers de raccordement photovoltaïques
- Solar inverter DC circuits
- Battery energy storage systems
- DC distribution cabinets
- Charging equipment
- Communication power systems
- Industrial DC control systems
- Renewable energy equipment
- OEM electrical panels
The combination of nonpolarity wiring and up to 10kA breaking capacity makes the GDDC4-63 DC MCB especially suitable for higher-performance photovoltaic and industrial DC protection applications.
Why Choose GA&DA GDDC4-63 DC MCB?
Le GDDC4-63 DC MCB provides a stronger protection specification than conventional lower-breaking-capacity DC miniature circuit breakers while retaining a compact DIN rail format.
Parmi les principaux avantages, on peut citer :
- Nonpolarity wiring design
- Up to 10kA breaking capacity
- Rated current from 10A to 63A
- 1P / 2P / 3P / 4P options
- Voltage configurations up to 1 000 V CC
- B / C / D trip curves
- IEC/EN60947-2 compliance
- 8kV impulse withstand voltage
- Compact DIN rail mounting
- Accessory expansion available
- Suitable for photovoltaic and energy-storage systems
- OEM, distributor and project purchasing support
For wholesalers, solar equipment manufacturers and panel builders, the GDDC4-63 DC MCB provides a versatile DC circuit protection platform for different voltage and current requirements.
FAQ
What is the main advantage of the GDDC4-63 DC MCB?
The GDDC4-63 DC MCB uses a nonpolarity design, providing greater flexibility when wiring DC circuits.
What breaking capacity does the GDDC4-63 provide?
The series is rated at 6000A / 10000A, depending on the applicable configuration.
What current ratings are available?
The GDDC4-63 DC MCB is available in 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A.
Which pole configurations are available?
The complete series includes 1P, 2P, 3P and 4P configurations.
What is the maximum rated voltage?
The 4P GDDC4-63 DC MCB supports rated voltage up to 1000V DC.
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