GDC1-63 AC MCB Overview
The GDC1-63 AC MCB is a compact miniature circuit breaker designed to provide overload and short-circuit protection in residential, commercial and industrial low-voltage electrical systems. With rated currents from 1A to 63A, the series provides flexible protection options for lighting circuits, power distribution, control panels and general electrical equipment.
The GDC1-63 AC MCB is available in 1P, 2P, 3P and 4P configurations, allowing the same product family to be used in single-phase and three-phase electrical installations. Rated voltage options include 240V / 415V AC, while the rated breaking capacity reaches 4.5kA.
Three thermo-magnetic tripping characteristics are available:
- B Curve
- C Curve
- D Curve
These curve options help engineers match the breaker to different load characteristics. B curve models are commonly used for circuits with lower inrush current, C curve versions are widely applied to general distribution and motor-related loads, while D curve models are suited to circuits with higher starting or inrush currents.
The GDC1-63 AC MCB is designed for standard 35mm DIN rail mounting, making it easy to integrate into distribution boards, control cabinets and modular electrical assemblies.
Product Features
1A to 63A Current Range
The GDC1-63 series provides a broad current selection including:
1A, 2A, 3A, 4A, 5A, 6A, 8A, 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A.
This wide range allows the GDC1-63 AC MCB to cover different branch circuit and distribution requirements.
1P / 2P / 3P / 4P Options
Available pole configurations include:
- 1P
- 2P
- 3P
- 4P
This makes the series suitable for both single-phase and three-phase protection systems.
B, C and D Trip Curves
The GDC1-63 AC MCB supports B, C and D thermo-magnetic characteristics, giving panel designers greater flexibility when matching the circuit breaker to load behavior.
4.5kA Breaking Capacity
With a rated breaking capacity of 4500A, the GDC1-63 provides dependable interruption of short-circuit currents within its specified operating conditions.
Contact Position Indicator
A built-in contact position indicator provides clear visual identification of the breaker operating state, helping simplify inspection and maintenance.
DIN Rail Installation
The breaker mounts on a standard 35mm DIN rail, supporting fast installation and convenient replacement inside modular electrical panels.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | GA&DA |
| Model | GDC1-63 |
| Product Type | AC Miniature Circuit Breaker |
| Rated Current | 1A–63A |
| Pole Options | 1P / 2P / 3P / 4P |
| Rated Voltage | 240V / 415V AC |
| Rated Frequency | 50/60Hz |
| Insulation Voltage Ui | 500V |
| Impulse Withstand Voltage Uimp | 4kV |
| Breaking Capacity | 4.5kA |
| Trip Curve | B / C / D |
| Electrical Life | 4,000 operations |
| Mechanical Life | 10,000 operations |
| Protection Class | IP20 |
| Contact Position Indicator | Yes |
| Terminal Capacity | Up to 25mm² |
| Tightening Torque | 3.0 N·m |
| Mounting | 35mm DIN Rail |
| Standard | IEC/EN 60898-1 |
Applications of GDC1-63 AC MCB
The GDC1-63 AC MCB is suitable for a wide range of low-voltage electrical protection applications, including:
- Residential distribution boards
- Commercial electrical panels
- Industrial control cabinets
- Lighting circuits
- Power distribution systems
- Small machinery circuits
- HVAC electrical panels
- OEM electrical assemblies
- Building electrical installations
Its wide current range and multiple pole configurations make the GDC1-63 useful for both standard installations and customized panel designs.
Selecting a GDC1-63 AC MCB
When selecting a GDC1-63 AC MCB, the rated current should be matched to the cable capacity and connected load. Engineers should also consider pole configuration, system voltage, expected short-circuit current and trip curve.
For general-purpose electrical circuits, C curve is commonly selected. B curve may be preferred for circuits with lower inrush current, while D curve can be considered for equipment with higher startup current.
The breaker should always be coordinated with upstream and downstream protective devices to ensure reliable circuit protection.
Why Choose GA&DA GDC1-63 AC MCB?
The GDC1-63 AC MCB combines a broad current range, multiple pole options and three trip curves in one modular circuit breaker family.
Key advantages include:
- 1A–63A current range
- 1P / 2P / 3P / 4P configurations
- B / C / D trip curves
- 240V / 415V AC applications
- 4.5kA breaking capacity
- IEC/EN 60898-1 compliance
- 35mm DIN rail mounting
- Contact position indicator
- Up to 25mm² terminal capacity
- Suitable for distributor, OEM and project purchasing
For wholesalers, panel builders and electrical equipment manufacturers, the GDC1-63 series provides a flexible MCB platform that can cover multiple circuit protection requirements while maintaining consistent installation dimensions.
FAQ
What is the maximum current rating of the GDC1-63 AC MCB?
The GDC1-63 AC MCB is available with rated currents up to 63A.
Which pole configurations are available?
The series supports 1P, 2P, 3P and 4P configurations.
What is the breaking capacity?
The GDC1-63 has a rated breaking capacity of 4.5kA.
Which trip curves are available?
B, C and D trip characteristics are available.
What voltage is the GDC1-63 designed for?
The series is suitable for 240V / 415V AC electrical systems.
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