The MCB-3P-63A is a three-phase miniature circuit breaker designed to protect electrical systems against overloads and short circuits, helping ensure the safety of electrical equipment and users. With a rated current of 63A, the product is suitable for medium- and high-power electrical systems, such as factories, apartment buildings, small transformer substations, and industrial control systems.

MAIN TECHNICAL SPECIFICATIONS

Note: The specifications "Icu = 6 kA" and "AC 400V" are taken as examples from KAWASAN's three-phase MCB-25 product series. Kawasan
Please verify the actual specifications of the 63A version before publishing the product description.

KEY FEATURES

1. Comprehensive Protection

   • When the electrical current exceeds the rated current, the circuit breaker automatically trips to protect against overload.

   • In the event of a short circuit, the device trips quickly to help prevent fires, explosions, or equipment damage.

   • The automatic tripping function helps reduce risks caused by manual operating errors.

2. Stable and Durable Performance

   • Made from high-quality materials that resist oxidation, heat, and impact.

   • Its sturdy construction ensures long-lasting operation with minimal maintenance.

3. Compact design, easy to install

   • The compact design makes it easy to install in electrical cabinets and distribution panels.

   • The terminals and wire connections are designed for quick and safe wiring.

4. Compatible with Industrial Electrical Systems

   • Suitable for three-phase electrical systems, meeting common three-phase wiring requirements in industries, factories, and apartment buildings.

   • The 63A rated current is suitable for many medium-sized electrical loads and can be used to protect individual circuits or larger load groups.

APPLICATIONS

• Factories, manufacturing workshops, and industrial zones.

• High-rise buildings and apartment complexes.

• Shopping malls and supermarkets.

• Centralized machinery control systems.

• Secondary substations and internal electrical distribution systems.

INSTALLATION AND OPERATING INSTRUCTIONS

1. Preparation

   • Check the product and included accessories, such as screws, copper busbars, and insulating pads.

   • Choose a well-ventilated installation location, avoiding areas with high humidity or exposure to chemicals.

2. Installation

   • Secure the circuit breaker to the mounting plate inside the electrical cabinet or to a DIN rail, if applicable.

   • Connect the phase wires, neutral wire, and load wires as required by the electrical system, ensuring all connections are secure and not loose.

   • Make sure the power supply and load are connected to the correct phase terminals to avoid phase reversal

3. Inspection & Operation

   • When switching on the circuit breaker for the first time, check that it operates and trips properly.

   • Monitor the electrical system for faults, such as short circuits or sudden increases in current.

   • Perform regular maintenance, including checking electrical connections, removing dust, and inspecting the tripping mechanism.

WHY CHOOSE THE MCB-3P-63A CIRCUIT BREAKER?

• High Safety: Helps protect electrical equipment and users from electrical hazards.

• Trusted Brand: Reliable quality and stable performance.

• Reasonable Cost: Affordable investment compared to the benefits of protecting important electrical equipment.

• Wide Range of Applications: Suitable for both residential and industrial electrical systems.