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7-Plate MCCB Arc Chute 3012039 Copper Plated DC01 Steel Molded Case Circuit Breaker Arc Extinguisher

Compact OEM Molded Case Circuit Breaker (MCCB) Arc Chamber (Item No. 3012039).
Constructed with 7 high-conductivity de-ion splitter plates made of DC01 cold-rolled steel featuring a thick 3μm copper electroplated coating, supported by dual white epoxy glass cloth boards. Engineered for superior thermal arc diffusion, rapid magnetic commutation, and rigid dielectric isolation in standard industrial and commercial MCCB distribution units.
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  • Arc Chamber

  • HAIPART

  • 3012039

High Thermal Dissipation Copper-Plated Arc Chute for MCCBs

During short-circuit interruptions in low-voltage distribution systems, immediate heat dissipation and arc root movement are critical to prevent contact welding and enclosure burnout. The 3012039 MCCB Arc Chamber incorporates advanced 3μm thick copper plating over cold-rolled steel splitters, maximizing thermal conductivity and current limiting speed.

Engineered with a streamlined 7-plate de-ion grid configuration and reinforced with dual white epoxy glass cloth boards, this compact arc chute delivers consistent arc chopping, rapid cooling, and durable phase-to-phase insulation across standard MCCB frame sizes.


Key Technical Parameters & Material Specifications

Product Part Number 3012039 (MCCB De-ion Arc Chute)
Structural Configuration 7 De-ion Splitter Plates + 2 Support Side Boards
Grid Plate Material DC01 Cold-Rolled Strip Steel (High magnetic saturation & mechanical precision)
Surface Electroplating 3μm Precision Copper Plating (Superior thermal & electrical conductivity)
Side Wall Support White Epoxy Glass Cloth Board (High dielectric strength, rigid anti-vibration support)

Engineering Advantages & Arc Extinguishing Principles

  • Rapid Heat Transfer via Copper Coating: The 3μm copper plating provides exceptional thermal diffusivity, absorbing intense arc root heat instantly and suppressing localized metal vaporization.

  • Magnetic Pull & Arc Commutation: The DC01 cold-rolled steel core maintains strong magnetic permeability, quickly driving the arc away from the main breaker contacts into the splitter slots.

  • 7-Stage Series Splitting: The 7-plate stack divides the high-energy arc into 8 series micro-arcs, establishing cumulative near-electrode voltage drops to accelerate current extinction.

  • Durable Insulation Matrix: White epoxy glass cloth laminate ensures high mechanical retention under magnetic explosive shock and provides excellent resistance against tracking.


Frequently Asked Questions (FAQ)

Q1: What are the main benefits of 3μm copper plating compared to nickel plating?

A1: Copper offers significantly higher electrical and thermal conductivity. The 3μm copper layer rapidly dissipates arc thermal energy across the grid surface, drastically shortening arc duration and lowering contact wear.

Q2: Why combine DC01 steel with a copper surface rather than solid copper plates?

A2: Solid copper is non-magnetic and cannot generate the electromagnetic Lorentz force required to pull the arc into the chamber. DC01 steel provides the magnetic suction, while the copper plating provides immediate surface cooling—a perfect synergistic match.

Q3: Can HAIPART provide custom modifications for specific MCCB casing dimensions?

A3: Yes. We offer comprehensive OEM/ODM engineering, accommodating custom plate counts, slot profiles, mounting lugs, and side board contours according to your exact mechanical drawings.


HAIPART – One Partner | All Solutions

Professional OEM/ODM Manufacturer of Circuit Breaker Stamping Parts, Arc Chutes & Mechanisms

Email: Sales@haipart.com  |  Tel / WhatsApp: +86-13819777367

Brand
HAIPART
Application
Copper 3um Coating
Technology
stamping
copper plating
assembly
riveting
Grid Plate Material
DC01 Cold Rolled Strip Steel
Plating
Copper 3um Coating
Insulation Material
White Epoxy Glass Cloth Board
Configuration
7 Plates + 2 Support Boards
End Products
MCCB
Molded Case Circuit Breaker
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We believe that through our manufacturing strengths and service commitment, we are able to provide our customers with superior products and an unparalleled service experience.​​​​​​​
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