Views: 0 Author: Site Editor Publish Time: 2025-08-05 Origin: Site
The best arc chamber depends on the circuit breaker type. It also depends on how you use it and what you need most. Some people care about safety, cost, or easy repairs. When it comes to protecting your electrical systems, the arc chamber inside your circuit breaker plays a critical role. For low-voltage breakers—such as Miniature Circuit Breakers (MCB) and Molded Case Circuit Breakers (MCCB)—choosing the right arc chamber can mean better safety, longer breaker life, and lower maintenance costs.
At HAIPART, we specialize in low-voltage arc chambers designed for MCCB and MCB applications. Our grid-type arc chute technology rapidly cools and deionizes the arc, providing reliable protection in industrial, commercial, and residential environments. HAIPART is a leader with new Arc Chamber for Circuit Breakers. They focus on low-voltage solutions. These solutions cool fast and protect every circuit better.
When a breaker opens under load or during a fault, an electrical arc forms between the contacts. If uncontrolled, this arc can damage components, cause fires, or endanger personnel.
A high-quality arc chamber:
Splits and cools the arc quickly.
Deionizes gases to stop current flow.
Prevents contact erosion.
Improves breaker life and reliability.
The HAIPART Arc Chamber is designed for low-voltage circuit breakers, especially Molded Case Circuit Breakers (MCCB) and Miniature Circuit Breakers (MCB).
Its grid-type arc chute structure rapidly splits, cools, and deionizes the arc, ensuring safe circuit interruption, preventing contact damage, and extending breaker lifespan.
Built from heat-resistant insulation composites (including FR-4 epoxy glass fiber board, GPO-3, melamine board, and glass-fiber reinforced PA66) and high-purity conductive metals including low-carbon steels (Q195, Q235, DC01, 10#, CD01, SPCC) and galvanized steel DX51D+Z140,, this arc chamber maintains stable performance even under high short-circuit conditions, making it ideal for industrial, commercial, and renewable energy applications.
The arc chamber in a circuit breaker plays a critical role in extinguishing the arc formed when the contacts separate. HAIPART’s arc chambers are meticulously engineered using premium-grade materials and well-tested structural configurations to ensure fast arc quenching, high durability, and excellent thermal performance.
The arc-splitting plates are made from high-strength, low-carbon steel variants, selected for their mechanical integrity and conductive properties:
| Material Type | Key Grades | Properties |
|---|---|---|
| Low-Carbon Steel | Q195, Q235, DC01, CD01, 10#, SPCC | Excellent forming ability, arc erosion resistance |
| Galvanized Steel | DX51D+Z140 | Corrosion resistance, enhanced surface conductivity |
These materials enable rapid heat dissipation and withstand high-energy arc impacts without deformation.
To maintain the correct alignment and insulation between arc plates, HAIPART uses a combination of high-performance electrical insulators:
| Support Material | Color Options | Features |
|---|---|---|
| Epoxy Glass Fiber Board 3240 (FR-4) | Yellow | High dielectric strength, flame retardant |
| Insulated Steel-Paper Laminates | Red, Green, Gray | Good mechanical insulation, economical |
| Melamine Resin Board | White, Beige | High arc resistance, good rigidity |
| Dupont™ Nomex Paper | White | Excellent thermal and electrical insulation |
| GPO-3 Insulation Board | Red, Reddish Brown | Flame retardant, impact resistant |
| Glass-Fiber Reinforced Nylon PA66 (GF30) | Black, Natural | High temperature and chemical resistance |
For improved arc resistance, contact conductivity, and corrosion protection, the metal plates undergo precise electroplating:
| Plating Type | Coating Thickness |
|---|---|
| Nickel Coating | 2 μm, 7 μm |
| Copper Coating | 3 μm, 5 μm, 10 μm |
| Copper + Nickel Dual Layer | Cu 3 μm + Ni 2 μm Cu 5 μm + Ni 6 μm Cu 10 μm + Ni 7 μm |
| Zinc Plating | White Zinc 1 μm / 2 μm, Blue White Zinc 1 μm |
HAIPART offers flexible arc chamber assemblies to suit different breaker designs. Typical configurations include:
Standard Sets:
13 plates + 1/2/4 supports
10 plates + 2 supports + arc splitter
12 plates + 1 or 4 supports
14 plates + 2 supports
5 / 7 / 8 / 9 / 11 / 15 / 20 / 24 / 26 / 28 / 30 / 33 / 34 / 37 plates with matching supports and gas-producing elements.
Advanced Designs:
Includes gas-producing components and magnetic blow-out structures for higher breaking capacity.
Fast Arc Extinction – Rapid cooling and deionization minimize contact wear.
High Thermal Stability – Withstands extreme arc temperatures without deformation.
IEC 60947-2 Compliance – Meets international low-voltage breaker safety standards.
Long Service Life – High-quality materials ensure prolonged operational reliability.
Easy Retrofitting – Compatible with many MCCB and MCB models for direct replacement.
Arc Extinction Process:
Contacts open, creating an electrical arc.
Arc chute grid splits the arc into smaller sections.
Glass fiber-based insulating components (e.g., FR-4, GPO-3, PA66) and copper parts absorb heat..
Charged particles recombine, extinguishing the arc.
Breaker is ready for the next operation cycle.
HAIPART Arc Chambers are engineered for easy integration into various MCCB and MCB brands without major modifications.
They are ideal for:
Industrial Panels – High-current protection in manufacturing plants.
Commercial Buildings – Distribution boards for offices, malls, and schools.
Renewable Energy Systems – Solar, battery storage, and wind power DC breakers.
Harsh Environments – Locations with high humidity, dust, or temperature variation.
| Attribute | Specification |
|---|---|
| Product Type | Arc Chamber / Arc Chute for MCCB |
| Voltage Range | Up to 1000V AC / DC |
| Rated Breaking Capacity | According to MCCB model (IEC 60947-2) |
| Material Composition | Low-Carbon Steel (Q195, Q235, DC01, 10#, CD01, SPCC), Galvanized Steel (DX51D+Z140) |
| Structure Type | Grid-type arc chute |
| Cooling Method | Air cooling with arc-splitting plates |
| Compatibility | Fits various MCCB and MCB models |
| Standards Compliance | IEC 60947-2 |
| Maintenance Cycle | Annual inspection recommended |
✅ Key Benefits of HAIPART MCCB Arc Chamber
Durable, heat-resistant construction
High arc-quenching efficiency
Fits multiple breaker brands
Cost-effective with long service life
While there are many arc-extinguishing technologies, only a few are relevant for low-voltage applications:
| Arc Chamber Type | Arc Extinction Medium | Typical Voltage Range | Common Use Cases |
|---|---|---|---|
| Air Arc Chute | Air | Up to 1000V | MCBs, MCCBs in buildings, factories |
| Vacuum Interrupter | Vacuum | Up to 38 kV | Medium-voltage breakers (not typical for MCCB/MCB) |
| SF₆ Gas Chamber | SF₆ Gas | Medium-high voltage | Utilities (not used in low-voltage MCCB/MCB) |
| Oil Arc Chamber | Oil | Above 1 kV | Outdated high-voltage applications |
HAIPART makes low-voltage arc chambers for miniature and molded case circuit breakers. Their grid-type design cools the arc quickly and keeps circuits stable. This makes them a good choice for safe and efficient circuit protection. For low-voltage systems, air arc chutes—like HAIPART’s grid-type design—are the preferred choice.
Our arc chambers for MCCB and MCB are engineered with:
Grid-Type Arc Chute – Splits the arc into smaller segments, increasing surface area for faster cooling.
Reinforced Insulating Materials – High-temperature resistant boards such as FR-4, GPO-3, PA66 GF30, and melamine resin boards maintain structural integrity even under extreme arc temperatures.
High-Purity Copper Components – Ensure excellent electrical conductivity and wear resistance.
IEC 60947-2 Compliance – Meets global safety and performance standards.
Easy Retrofitting – Compatible with many breaker brands, allowing simple upgrades or replacements.
View HAIPART Arc Chamber for MCCB Product →
Voltage & Current Rating
Match your breaker’s operating voltage (e.g., 240V, 480V, up to 1000V).
Ensure the arc chamber can handle the maximum fault current.
Breaking Capacity
Higher breaking capacity means safer interruption of large fault currents.
Cooling & Deionization Speed
Faster arc cooling reduces heat damage and contact wear.
Compatibility
Choose designs that fit existing MCCB or MCB housings for easier installation.
Maintenance Cycle
HAIPART’s insulation board and copper plate design (using high-performance materials like GPO-3, FR-4, PA66) reduces wear, allowing annual inspections instead of frequent servicing.
Environmental Resistance
For dusty, humid, or high-temperature environments, select heat-resistant and corrosion-proof materials.
| Feature | Standard Air Arc Chute | HAIPART Grid-Type Arc Chamber |
|---|---|---|
| Arc Cooling Speed | Moderate | Fast – grid-type design maximizes airflow |
| Material Durability | Standard steel plates | Low-Carbon Steel (Q195, Q235, DC01, 10#, CD01, SPCC), Galvanized Steel (DX51D+Z140) |
| Maintenance Interval | 1–2 years | Annual check only |
| Installation | Basic fit | Easy retrofit to MCCB/MCB |
| Compliance | Varies | IEC 60947-2 certified |
Industrial Panels – High current MCCBs protecting heavy machinery.
Commercial Buildings – MCBs in distribution boards.
Renewable Energy – MCCBs for solar and battery storage (with magnetic blow-out features for DC).
Harsh Environments – Outdoor or dusty installations requiring heat-resistant materials.
Types Supported – Miniature Circuit Breakers (MCB), Molded Case Circuit Breakers (MCCB), DC Isolation Switches, and Air Circuit Breakers.
Check arc chambers during routine breaker inspections—typically once per year for MCCBs and MCBs. Replace any worn or damaged components immediately to maintain full protection.
For low-voltage circuit breakers, the best choice is a high-performance air arc chute that cools and extinguishes arcs quickly while withstanding harsh conditions.
HAIPART’s low-voltage arc chambers are:
Reliable in MCB/MCCB applications
Functional Role: Designed to rapidly extinguish electric arcs during circuit interruption, preventing sustained arcing and equipment damage.
Technology: Ceramic grid + magnetic blow-out structure.
Breaking Capacity: Covers 6kA – 65kA, in compliance with IEC 60947 safety and performance standards.
Material Excellence: Manufactured using premium low-carbon steel grades (Q195, Q235, DC01, CD01, 10#, SPCC) and galvanized DX51D+Z140 steel, ensuring superior arc resistance and thermal durability.
Need the right arc chamber for your breaker?
Contact HAIPART Today →
An arc chamber traps and cools the electric arc when the breaker opens. This action protects the circuit and prevents damage. The chamber helps stop fires and keeps people safe.
Most arc chambers in MCBs and MCCBs need yearly checks. Factories may check more often. HAIPART arc chambers last a long time with regular care.
Tip:Always follow the maintenance schedule for the best safety.
HAIPART designs arc chambers for many MCB and MCCB models. They fit most standard panels. For special breakers, users should check compatibility with HAIPART before buying.
Ceramic grids resist heat and help cool the arc quickly. This design makes the chamber safer and helps it last longer. HAIPART uses ceramic grids for better performance in tough conditions.
