12-Plate MCCB Arc Chute 3012004 DC01 Nickel Plated Melamine Glass Cloth Board Arc Chamber

Rigid Melamine Board Insulated Arc Chute for Industrial MCCBs

Reliable short-circuit interruption in Molded Case Circuit Breakers (MCCB) depends on instantaneous arc commutation and robust structural retention. The 3012004 MCCB Arc Chamber is structured specifically to provide durable arc-splitting action, rapid plasma cooling, and high dielectric endurance under severe fault currents.

Configured with a precision 12-plate de-ion grid array stamped from high-permeability DC01 cold-rolled steel (protected by a 2μm nickel plating layer) and secured by dual heavy-duty melamine glass cloth boards, this arc chute prevents restrikes and guarantees long-term phase isolation.

Key Technical Parameters & Material Specifications

Engineering Advantages & Extinguishing Principles

• 12-Stage Series Arc Splitting: The 12-plate array instantly cuts the high-energy fault arc into 13 series micro-arcs, establishing rapid electrode voltage accumulation to force zero-crossing extinction.
• Lorentz Magnetic Inflow: The high-permeability DC01 steel generates powerful electromagnetic pull forces that quickly commutate the arc off breaker contacts deep into the cooling chamber.
• Zero Carbon Tracking: Thermosetting melamine glass cloth laminate prevents conductive surface path formation under high-temperature arc radiation, ensuring high Comparative Tracking Index (CTI).
• High Mechanical Rigidity: The dual melamine support boards withstand heavy electromagnetic pulse pressure waves, maintaining accurate plate gaps and preventing deformation.

Frequently Asked Questions (FAQ)