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  • 250A Three Phase Two Way Changeover Isolating Switch
  • 250A Three Phase Two Way Changeover Isolating Switch
  • 250A Three Phase Two Way Changeover Isolating Switch
  • 250A Three Phase Two Way Changeover Isolating Switch
  • 250A Three Phase Two Way Changeover Isolating Switch
  • 250A Three Phase Two Way Changeover Isolating Switch
250A Three Phase Two Way Changeover Isolating Switch

250A Three Phase Two Way Changeover Isolating Switch

  • 12 - 23 Pieces
    $11.80
  • 24 - 99 Pieces
    $11.50
  • >= 100 Pieces
    $11.20

Customization:

Customized logo（Min.Order: 5 pieces）
Customized packaging（Min.Order: 5 pieces）
Graphic customization（Min.Order: 5 pieces）
View product details

250A Three Phase Two Way Changeover Isolating Switch

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Load Isolation & Switching: Safely disconnects electrical loads from the power supply while enabling two-way changeover between power sources (e.g., primary and backup systems).
  • High-Capacity Handling: Supports 250A at 400V, designed for robust performance in heavy-duty applications with copper contacts for optimal conductivity and durability.

Key features

  • 1. Material Technology

    • With copper construction, you can ensure efficient electrical conductivity and heat dissipation, reducing energy loss in high-load scenarios.

  • 2. Interactive Design

    • With a corrosion-resistant metallic lever handle, you can achieve intuitive on/off control and withstand harsh industrial environments.

  • 3. Performance Parameters

    • With a 250A current capacity at 400V, you can handle heavy-duty loads for reliable power distribution in commercial systems.

  • 4. Scenario Solutions

    • Designed for industrial/commercial applications, you can manage complex electrical systems with load isolation functionality, ensuring safe disconnect without disrupting power supply.

  • 5. Certification Standards

    • Complies with GB/T14048.3, you can guarantee safety and performance alignment with national electrical standards.

Product details

250A Three Phase Two Way Changeover Isolating Switch

The 250A Three Phase Two Way Changeover Isolating Switch is a robust industrial-grade electrical component designed for safe and efficient load isolation in commercial and industrial systems. Constructed with copper contacts and a durable plastic housing, it ensures high conductivity and environmental resistance. With a maximum rating of 250A at 400V, this switch enables reliable disconnection of three-phase loads while maintaining system integrity.

Technical specifications

FeatureSpecificationBenefit
MaterialCopper contacts, corrosion-resistant metallic leverHigh conductivity and durability
Voltage Rating400V ACSafe operation in high-voltage systems
Current Capacity250AHandles heavy-duty industrial loads
DesignModular, multiple mounting holesEasy integration and flexible installation
ComplianceGB/T14048.3Ensures safety and performance standards

Customization guide

Adjustable parameters include:

  • Mounting configurations (via pre-drilled holes) to fit diverse panel layouts.
  • Color coding (e.g., red/blue labels) for customized operational status indicators.
  • Material upgrades (e.g., stainless steel levers) for extreme corrosion resistance.

Get inspired

With its compact design and 250A capacity, this switch is ideal for applications like industrial machinery control panels, renewable energy systems, or commercial HVAC setups. Its copper contacts ensure minimal energy loss, while the corrosion-resistant lever guarantees longevity in harsh environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Current Rating250A287.5A (+15%)325A (+30%)
Voltage Handling400V AC400V AC400V AC
Material GradeStandard copperSilver-plated copperOxygen-free copper
IP RatingIP54IP65IP67
CertificationsGB/T14048.3GB/T14048.3 + ULGB/T14048.3 + IEC60947

Supplier's note

  1. Three Key Breakthroughs:

    • Copper Contacts: Achieve 20% lower resistance than aluminum alternatives, ensuring efficient power flow.
    • Modular Design: Reduces installation time by 30% compared to fixed-panel switches.
    • IP67 Pro Model: Offers waterproofing for outdoor or wet environments, exceeding industry-standard IP54.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard industrial applications (e.g., workshop equipment) where cost-efficiency is prioritized.
    • Advanced Model: Targets users needing enhanced corrosion resistance (e.g., coastal factories) and dual certifications (GB/T + UL).
    • Pro Model: Designed for high-current scenarios (e.g., data centers) and extreme environments, with triple the chemical resistance of competitors.

With the Pro version’s IP67 rating, you can deploy the switch in outdoor substations without performance degradation. Pair its oxygen-free copper contacts with its waterproof design to ensure uninterrupted operation in rain or dust. For smaller workshops, the Base Model’s 250A capacity and IP54 rating suffice for daily load management.

Frequently asked questions

  • Which load isolation switch model suits heavy-duty industrial applications requiring 250A and 400V?

  • How do I maintain the metallic lever and plastic components of this isolating switch?

  • Copper vs. Aluminum: Why is copper preferred for this isolating switch?

  • Can this switch be customized for specific mounting configurations?

  • Is this isolating switch compliant with international safety standards?

  • What makes this switch suitable for three-phase power systems in factories?

  • How does the modular design simplify installation?

  • Can this isolating switch handle frequent power source switching?

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