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Miniature Circuit Breakers
  • Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro
  • Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro
  • Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro
  • Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro
  • Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro
Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro

Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro

$4.50-$6.30/ Piece|120 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 500 pieces）
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Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Electrical Protection: The ONESTO KC10pro C25 miniature circuit breaker (MCB) provides robust overcurrent, short-circuit, and ground fault protection using a C-curve rating, ensuring precise tripping for sensitive equipment and appliances.
  • High-Breaking Capacity: Equipped with a 10kA breaking capacity, it safeguards electrical systems against extreme surges, making it reliable for demanding applications.

Key features

  • 1. Durable Material Construction

    • With flame-retardant plastic construction, ensure long-lasting protection in harsh electrical environments*.

  • 2. Clear Interactive Design

    • With clear polarity and connection markings, reduce installation errors compared to models with ambiguous labeling*.

  • 3. High-Performance Parameters

    • With 10kA breaking capacity and 25A rated current, handle surges up to 10,000A and power demands exceeding standard 6kA/10A models*.

  • 4. Versatile Scenario Solutions

    • With a three-pole design, protect against phase-to-phase and ground faults in residential and commercial electrical systems*.

  • 5. Global Certification Standards

    • Certified to SAA and IEC/EN60898-1 standards, ensure compliance with safety and performance requirements worldwide.

Product details

Circuit Protection 10kA C Curve 25A Miniature Circuit Breaker MCB KC10pro

The ONESTO KC10pro C10 miniature circuit breaker (MCB) is a robust 3-pole protection device rated for 25A and 240V/415V systems. Designed to handle up to 10kA breaking capacity, it offers versatile fault protection via D, B, and C curves, ensuring reliability in residential, commercial, and light industrial applications. Certified to SAA and CB standards, this compact MCB combines safety, durability, and ease of installation.

Technical specifications

FeatureSpecificationApplication Scenario
Breaking Capacity10kAHigh fault current protection in industrial systems
Rated Current25AProtecting circuits in commercial buildings
Rated Voltage240V/415VDual-voltage compatibility for mixed systems
BCD CurveD, B, CAdaptable to motor loads (D), sensitive devices (B), and standard circuits (C)
Number of Poles3Three-phase systems in factories or data centers
CertificationsSAA, CBGlobal compliance for export and safety-critical projects

Customization guide

Adjust the BCD curve selection (D, B, or C) to match specific fault response needs. For example, choose the D curve for motor-driven equipment and the B curve for office electronics. The 3-pole design ensures balanced protection in three-phase setups, while the dual-voltage rating accommodates both residential and industrial power systems.

Get inspired

With its 10kA breaking capacity, the KC10pro C10 safeguards critical infrastructure against extreme overcurrent events. Its compact, plastic housing simplifies installation in tight electrical panels, while the C curve ensures optimal protection for lighting and HVAC systems without nuisance tripping.

Choose your model

ParameterBase Model (KC10)Advanced Model (KC10+)Pro Model (KC10pro)
Breaking Capacity6kA8kA10kA (+66% vs Base)
Rated Current20A25A25A
CertificationsIEC OnlyIEC + CBIEC + SAA + CB

Supplier's note

  1. Key Technical Breakthroughs:

    • 10kA Breaking Capacity: Exceeds industry benchmarks by 66%, enabling safe operation in high-risk industrial environments.
    • Multi-Curve Flexibility: The C curve allows precise protection for sensitive electronics, while the D curve handles motor inrush currents.
    • Dual-Voltage Support: Simplifies deployment across 240V residential and 415V commercial systems without additional hardware.

  2. Optimal Version Selection:

    • Base Model (KC10): Ideal for low-risk residential wiring or small workshops needing up to 20A protection.
    • Advanced Model (KC10+): Suitable for commercial offices or light manufacturing requiring 25A capacity and CB certification.
    • Pro Model (KC10pro): Best for industrial facilities demanding 10kA resilience and SAA compliance. For example, its C curve paired with 25A rating ensures stable power to HVAC systems while preventing over-tripping during peak loads.

Frequently asked questions

  • Which miniature circuit breaker (MCB) suits small businesses with 25A circuits?

  • How do I maintain the ONESTO KC10pro C10 MCB for longevity?

  • What’s the difference between B, C curves in ONESTO MCBs?

  • Can the KC10pro C10 handle 415V systems in workshops?

  • Is the KC10pro C10 certified for Australian safety standards?

  • Why choose a 3-pole MCB like the KC10pro over single-pole models?

  • What’s the breaking capacity of the KC10pro C10 MCB?

  • Does the KC10pro C10 support easy installation in tight panels?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Breaking CapacityIndustrial facilities, high-power systemsIndustry Standard: 6kA ▲ Our Base: 6kA ▲ Our Advanced: 10kA (exceeds 6kA standard)Handles extreme fault currents (e.g., motor startups) ▲ Advanced: 10kA (▲)Base: Limited to 6kA for cost-sensitive applications
Rated CurrentCommercial appliances, heavy machineryIndustry Standard: Up to 25A ▲ Our Base: 16A ▲ Our Advanced: 25A (▲)Supports high-load devices (e.g., HVAC systems) ▲ Advanced: 25A (▲)Base: Insufficient for high-current equipment
CertificationsGlobal projects requiring complianceIndustry Standard: IEC 60898 ▲ Both Tiers: SAA + CB (IEC 60898 compliant)Meets international safety standards (e.g., Australia/SAA)No notable disadvantages (certifications are standard for the category)
Number of Poles3-phase systems, industrial panelsIndustry Standard: 2 poles ▲ Our Base: 2 poles ▲ Our Advanced: 3 poles (▲)Full phase protection in 3-phase setups ▲ Advanced: 3 poles (▲)Base: Limited to single/dual-phase applications
BCD Curve OptionsVariable load environmentsIndustry Standard: B curve ▲ Our Base: B curve ▲ Our Advanced: D+B+C curves (▲)Flexible protection for motors (C/D curves) and sensitive electronics (B curve)Base: Limited to B curve for standard residential use
Voltage RatingCommercial buildings, industrial gridsIndustry Standard: 240V ▲ Our Base: 240V ▲ Our Advanced: 240V/415V (▲)Dual-voltage compatibility for 3-phase systems (▲ Advanced: 415V ▲)Base: Incompatible with 415V industrial systems

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