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  • MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor
  • MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor
  • MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor
MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor

MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor

  • 500 - 999 Pieces
    $28.30
  • >= 1000 Pieces
    $26

Customization:

Customized packaging（Min.Order: 2000 pieces）
Graphic customization（Min.Order: 2000 pieces）
Customized logo（Min.Order: 2000 pieces）
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MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Overcurrent & Fault Protection: Designed to safeguard electrical systems against overloads, short circuits, and other faults using a B-type tripping curve for precise current interruption.
  • Manual Control & Automation: Features a manual override switch for testing or emergency operation, complementing automatic fault detection and response.
  • High-Breaking Capacity: Supports robust protection up to 40A with a durable copper contact system, ensuring reliability in demanding environments.

Key features

  • 1. Advanced Material Technology

    • With copper contacts and a durable plastic housing, ensure reliable conductivity and resistance to environmental stress. The copper ensures low resistance for efficient power flow, while the plastic casing provides corrosion resistance and flame-retardant properties for safe operation in industrial settings.

  • 2. User-Friendly Interactive Design

    • With a clear front panel featuring labeled terminals (L1/L2/L3, T1/T2/T3) and a manual override switch, simplify installation, maintenance, and emergency operation. The intuitive design reduces setup time and minimizes errors during wiring or troubleshooting.

  • 3. Exceptional Performance Parameters

    • With a high breaking capacity (e.g., 10kA), handle severe overcurrents and short circuits more effectively than standard models*. This ensures robust protection for motors and electrical systems in demanding applications.

  • 4. Versatile Scenario Solutions

    • Designed for 3-phase systems (3 poles), this circuit breaker supports commercial and industrial applications, such as motor control and continuous operation in factories. Its rated current of 40A accommodates medium-to-heavy load requirements.

  • 5. Compliance with Global Standards

    • Certified to meet IEC 60947 standards for B-curve overload protection, guaranteeing precise tripping for overload scenarios while minimizing nuisance tripping. This ensures safety and reliability in compliance with international electrical safety regulations.

Product details

MCB Circuit Breaker siemens Series 3VU1640 28-40A Best Quality Silver Point Hot in Hot Sale Electric Contactor

The Siemens 3VU1640 MCB Circuit Breaker is a high-performance electrical protection device designed for industrial and commercial applications. With a rated current of 40A and a BCD curve B, it ensures precise overcurrent protection while maintaining reliability in harsh environments. Constructed with durable plastic and copper components, this 3-pole breaker offers a robust solution for safeguarding motors, circuits, and electrical systems against overloads and short circuits.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialPlastic (body) + Copper (contacts)Withstands high temperatures and corrosion in industrial settings
Breaking CapacityHigh (exceeds IEC 60947-2 standards)Protects systems from catastrophic failures in high-demand environments
Poles3P (Three-Pole)Ideal for three-phase motor control and balanced load distribution
Rated Current40ASafeguards circuits up to 40A without overheating
Protection CurveBCD Curve BEnsures selective coordination in complex electrical networks

Customization guide

Adjustable parameters include:

  • Rated Current: Customize from 28A to 40A to match specific load requirements.
  • Material Composition: Upgrade to silver-plated copper contacts for enhanced conductivity in high-temperature scenarios.
  • Breaking Capacity: Specify higher ratings (up to 6kA) for applications with extreme fault currents.

Get inspired

Maximize system safety and efficiency by selecting the right configuration. For instance, pairing the 3VU1640 with copper contacts ensures minimal energy loss in high-current industrial machinery.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Breaking Capacity5kA+15% (5.75kA)+30% (6.5kA)*
Rated Current40A (Standard)40A (Adjustable)40A (Customizable)
Material QualityCopper ContactsSilver-Plated CuPremium Cu Alloy
Protection CurveBCD Curve BBCD Curve B+BCD Curve B++

Supplier's note

  1. Technical Breakthroughs:

    • BCD Curve B: Enables precise overcurrent tripping to prevent nuisance tripping in stable loads.
    • High Breaking Capacity: Exceeds IEC standards by 20%, ensuring resilience in fault-heavy industrial systems.
    • Copper Contacts: Reduces energy loss by 15% compared to aluminum-based alternatives.

  2. Optimal Version Selection:

    • Base Model: Suitable for residential/commercial use where standard 5kA breaking capacity suffices.
    • Advanced Model: Ideal for light industrial plants needing adjustable current ratings and enhanced conductivity.
    • Pro Model: Tailored for heavy machinery and power grids requiring 6.5kA breaking capacity and premium material durability.

    With the Pro Model’s 6.5kA breaking capacity, you can safely handle extreme fault currents in mining or manufacturing facilities. Pair its copper alloy contacts with high-voltage motors to ensure zero energy loss during peak operations.

Frequently asked questions

  • Which MCB circuit breaker model is suitable for high-current residential applications up to 40A?

  • How do I clean and maintain an MCB circuit breaker to ensure longevity?

  • Why is copper used in the Siemens 3VU1640 MCB contacts instead of aluminum?

  • Can the Siemens 3VU1640 MCB be customized for specific pole configurations or current ratings?

  • Is the Siemens 3VU1640 MCB certified for commercial electrical systems?

  • How does the Siemens 3VU1640 MCB provide overcurrent protection in industrial settings?

  • What are the key factors to consider when installing a 3VU1640 MCB in a 3-phase system?

  • Is the Siemens 3VU1640 MCB suitable for both residential and commercial electrical systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Breaking CapacityIndustrial PlantsIndustry: 5kA (IEC 60947-2 compliant)Base: 10kA (▲1)Advanced: 15kA (▲2)
Material CompositionHarsh EnvironmentsIndustry: Plastic housing (UL94 HB)Base: Plastic + copper conductors (UL94 V-0) (▲1)Advanced: Die-cast copper core (▲2)
Rated CurrentHigh-Load MachineryIndustry: 32ABase: 40A (▲1)Advanced: 50A (▲2)
Overcurrent ProtectionSensitive EquipmentIndustry: Curve B (5–10×In)Base: Curve B (5–10×In)Advanced: Curve C (5–20×In) (▲1)
Pole ConfigurationThree-Phase SystemsIndustry: 2PBase: 3P (▲1)Advanced: 3P + Neutral (▲2)
Arc ResistanceHigh-Risk Electrical PanelsIndustry: 10kA/1s (IEC 60947-2)Base: 15kA/1s (▲1)Advanced: 20kA/1s (▲2)

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