6300A Air Circuit Breaker

This CDADA 6300A Air Circuit Breaker is perfect for bulk procurement, built for mission-critical infrastructure with AC 50Hz, 690V compatibility and 4000A-6300A current range. This ACB (4P model) delivers intelligent selective protection, ideal for power plants, mining and large industrial facilities. It supports Four Remotes via open interface, integrates with SCADA and smart grids, and works as a reliable isolator without a controller.

Product Parameter

Product Feature And Application

The CDADA 6300A ACB for power plant applications is built for extreme reliability under full-load conditions. Its reinforced contact system and multi-chamber arc chute enable safe interruption at 120kA fault levels—critical for utility-grade switchgear. Available in both 6300A drawout air circuit breaker and fixed ACB configurations, it supports rapid maintenance without de-energizing the entire busbar.

Why engineers specify CDADA 6300A:

★ Highest breaking capacity in CDADA’s low-voltage ACB lineup

★ Optimized thermal design for continuous 6300A operation

★ Pre-engineered compatibility with major switchgear OEMs

★ Optional intelligent controller with leakage protection

Production Details

As a leading 6300A air circuit breaker manufacturer, SHANGHAI DADA ELECTRIC employs precision casting and CNC machining to ensure dimensional accuracy of the frame and contact arms. Each unit undergoes:

★ Full-load temperature rise test (≤55K at 6300A)

★ 3-cycle short-circuit validation at Icu

★ Communication protocol verification (Modbus/Profibus optional)

Competitive Differentiation:

★ 6-layer silver-plated contact surface for low resistance

★ Modular controller bay for future upgrades

★ Export packaging with IP54-rated terminal covers

CDADA Factory Advantages:

● OEM & ODM experience: 42+ years;

● Annual output: 3,000,000 circuit breakers;

● Factory size: 50,000 m2;

● Main Processing Machines: 100 sets;

● Quality Inspection Machines: 50 sets;

● Our Staff: 400 employees;

● Technical Engineers: 32 employees;

● We certify our product in the world’s largest expert organizations

● We keep in touch to solve any issue efficiently

FAQ

Q1: What is the highest rated current available for the CDADA 6300A series?

A1: The CDADA 6300A series supports rated currents up to 6300A, with intermediate options at 4000A and 5000A.

Q2: Is the 6300A Air Circuit Breaker suitable for power plant main incomers?

A2: Yes—it’s specifically engineered for power plant, substation, and heavy industrial main distribution, with Icu up to 120kA at 400V.

Q3: How many copper bars are required per pole for the 6300A model?

A3: For 6300A, you need six (6) pieces of 120×10 mm copper bars per pole to ensure safe current carrying and low temperature rise.

Q4: Can this breaker operate without an intelligent controller?

A4: Yes—the base unit functions as a manual isolator when no controller is installed, though intelligent protection requires the optional controller module.

Q5: Does CDADA offer custom pole configurations (e.g., 3P instead of 4P)?

A5: Absolutely. While 4P is standard for grounding-sensitive applications, 3P versions are available upon request for specific system designs.