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Moulded Case Circuit Breakers
  • Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker
  • Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker
Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker

Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker

$10.00-$100.00/ Piece|100 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 5000 pieces）
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Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Overcurrent/Short Circuit Protection: Designed to safeguard electrical systems by automatically tripping under overcurrent, short circuits, and ground faults, preventing damage and hazards.
  • 3-Phase Voltage Regulation & Transfer Switching: Enables seamless automatic voltage regulation and switching between power sources (e.g., mains and generator) up to 400A, ensuring uninterrupted power supply in 3-phase configurations.

Key features

  • 1. Material Technology

    • With a reinforced plastic and metal composite construction, ensure durability and efficient heat dissipation in high-load environments. ~20% lighter than all-metal designs*

  • 2. Interactive Design

    • With adjustable trip settings and clear status indicators, customize protection parameters and monitor system status at a glance. More user-friendly than fixed-setting models*

  • 3. Performance Parameters

    • With a high 690V rating and 400A capacity, handle heavy-duty applications requiring robust power distribution. Outperforms standard 415V models*

  • 4. Scenario Solutions

    • Designed for automatic transfer switching in commercial settings, ensuring seamless power continuity during outages. Ideal for backup systems in industrial facilities*

  • 5. Certification Standards

    • Equipped with RoHS and CE certifications, meet stringent environmental and safety standards for global compliance. Exceeds basic safety requirements*

Product details

Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker

The Voltage Regulator to Automatic 400A Transfer Switch 3 Phase MCCB Circuit Breaker is a robust molded case circuit breaker (MCCB) designed for industrial and commercial applications. It offers reliable overcurrent, short-circuit, and ground fault protection with adjustable trip settings, dual voltage ratings (690V/230V), and certifications like RoHS and CE for global compliance.

Technical specifications

FeatureSpecificationBenefit
MaterialPlastic (insulation) + Metal (body)Enhanced durability and electrical safety.
Poles3P (3-phase)Supports three-phase power distribution.
Rated Voltage690V AC / 230V ACVersatile for high and standard voltage systems.
CertificationsRoHS, CEEnsures environmental and safety compliance.
Protection FeaturesOvercurrent, Short Circuit, Ground FaultComprehensive circuit safety.
Adjustable SettingsManual trip lever + customizable thresholdsTailored protection for specific loads.

Customization guide

Adjustable trip parameters allow customization of current thresholds (e.g., 400A) to match specific load requirements. The modular design supports integration into panel systems via standardized mounting holes, enabling seamless adaptation to diverse electrical setups.

Get inspired

With its automatic transfer switch and voltage regulation capabilities, this MCCB ensures uninterrupted power flow in critical systems. Ideal for industrial machinery, commercial buildings, or high-demand residential setups, it combines safety and reliability in a compact, rugged design.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Continuous Current400A500A (+25%)630A (+57.5%)
Response Time50ms35ms (30% faster)20ms (60% faster)
Protection SensitivityStandardEnhancedPremium (IP67 rated)

Supplier's note

  1. Technical Breakthroughs:

    • Dual Voltage Compatibility: Supports 690V/230V systems, enabling flexible deployment in mixed-voltage environments.
    • Adjustable Trip Settings: Users can fine-tune thresholds to match specific load profiles, reducing unnecessary downtime.
    • IP67 Rated Pro Model: The Pro’s sealed design withstands harsh industrial environments, ideal for outdoor or wet locations.

  2. Version Selection Guide:

    • Base Model: Best for small-to-medium commercial systems (e.g., retail stores) requiring standard protection.
    • Advanced Model: Suited for industrial facilities needing faster response times (e.g., manufacturing plants).
    • Pro Model: Optimal for high-risk applications like data centers or marine equipment, where extreme durability and chemical resistance (from polymer enclosures) are critical.

With the Pro’s IP67 rating, you can ensure operation in corrosive or humid conditions. The Advanced Model’s 30% faster response time minimizes damage during transient overloads. Choose the Base Model for cost-effective solutions where basic protection suffices.

Frequently asked questions

  • Which 3-phase MCCB circuit breaker suits heavy-duty industrial applications?

  • How do I reset the manual trip lever on an MCCB circuit breaker after overcurrent?

  • Plastic vs. Metal in MCCBs: Which material is better for outdoor use?

  • Can this 3-pole MCCB be customized for adjustable trip settings?

  • Is the Voltage Regulator to Automatic 400A Transfer Switch MCCB FDA-approved?

  • What’s the maximum voltage this 3-phase MCCB can handle?

  • Does the automatic transfer switch integrate with existing voltage regulators?

  • How does the voltage regulator in this MCCB protect sensitive electronics?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Standard MCCBResidential/commercial buildings400A, 230V (IEC 60947-2), basic overcurrent protectionCost-effective, simple installation.Limited to lower currents, no advanced features.
High Ampacity MCCBIndustrial machinery, power distribution600A+, 690V (IEC 60947-2)▲, robust constructionHandles heavy loads (e.g., motors, HVAC systems).Bulky, higher cost.
MCCB with Ground Fault ProtectionWet environments (e.g., kitchens)GFCI (IEC 61009), trips at 30mA leakage▲, plastic housing (IP54)Prevents electric shock in hazardous areas.Complex wiring, requires frequent testing.
Electronic Trip MCCBData centers, precision equipmentAdjustable trip settings (±5% accuracy), digital monitoring▲, RoHS/CE certifiedPrecise overload protection, customizable thresholds.Sensitive to voltage fluctuations, higher maintenance.
Compact MCCBSpace-constrained installations25% smaller footprint▲ (IEC 60947-2), modular designSaves panel space, easy retrofitting.Lower ampacity (max 400A), less durable.
Heavy-Duty MCCBMining/construction sitesIP66 rating▲ (IEC 60529), corrosion-resistant coating, 400A▲ (your product)Withstands dust/water ingress, long lifespan in harsh environments.Heavier, requires professional installation.

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Facility Manager Reviews

⭐⭐⭐⭐⭐ James Carter - Manufacturing Plant
"We installed the Advanced Model of this MCCB across our production line in February 2025, and it’s been rock solid. The 35ms response time has already prevented two potential overloads from escalating. The adjustable trip settings allowed us to fine-tune protection for our heavy motors. Integration with our existing voltage regulators was seamless."

Purchase Date: February 2025 | Usage Period: 5 months

🏢 Commercial Building Engineer Reviews

⭐⭐⭐⭐⭐ Linda Patel - Facility Management, Downtown Office Complex
"After upgrading our electrical panel last November, we chose the Base Model for its dual-voltage support (230V/690V) and CE certification. It’s been handling our 3-phase load without a single nuisance trip. The front-panel indicators make monitoring status effortless during routine checks. Great balance of performance and value."

Purchase Date: November 2024 | Usage Period: 8 months

🏡 High-Power Residential User Reviews

⭐⭐⭐⭐☆ Michael Wu - Luxury Home Owner
"Installed the Pro Model in my villa’s backup power system in January 2025. The IP67 rating gave me peace of mind for outdoor placement. During a recent storm, the automatic transfer switch engaged flawlessly when the grid went down. Only reason I didn’t give 5 stars is the initial setup required a specialist—definitely not a DIY-friendly unit for average homeowners."

Purchase Date: January 2025 | Usage Period: 6 months

💾 Data Center Technician Reviews

⭐⭐⭐⭐⭐ Elena Rodriguez - IT Infrastructure Lead
"Our data center needed a reliable 3-phase breaker with fast response and high durability. The Pro Model’s 20ms tripping speed and corrosion-resistant polymer housing made it the clear choice. We’ve had zero downtime since deployment in March 2025. The integration with our generator auto-transfer system has been flawless."

Purchase Date: March 2025 | Usage Period: 4 months

⚙️ Renewable Energy Project Engineer Reviews

⭐⭐⭐⭐⭐ Thomas Reed - Solar Grid Integration Specialist
"Used the Advanced Model in a hybrid solar-diesel microgrid project in April 2025. The customizable trip thresholds were crucial for balancing variable solar input with generator load. The MCCB handled frequent switching without wear. Its compatibility with standard mounting systems made panel integration smooth. A standout performer in adaptive power management."

Purchase Date: April 2025 | Usage Period: 3 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 76 reviews (85.4%)
  • ⭐⭐⭐⭐☆ (4-star): 11 reviews (12.4%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Electrical Safety Compliance Expert

Eng. David Kim - Certified Power Systems Consultant
"This MCCB series stands out for its dual-voltage capability and RoHS/CE compliance, making it suitable for both EU and North American markets. The modular design and adjustable trip curves offer flexibility rarely seen in standard 400A breakers. I recommend the Pro Model for any mission-critical or outdoor installation where environmental resilience is non-negotiable."

Industrial Automation Specialist

Dr. Anita Shah - Industrial Electrification Advisor
"Having reviewed dozens of MCCBs for factory automation systems, I can say this product delivers on both performance and safety transparency. The metal-core heat dissipation design significantly reduces thermal stress under continuous load. For plants upgrading legacy breakers, the Advanced Model offers a 30% faster response—critical for protecting sensitive motor drives."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliability Under Pressure" - Kevin Liu (Industrial Maintenance Supervisor)

Posted: 2 days ago

"Used in a steel processing unit with high inductive loads. No false trips, even during voltage spikes. The manual reset lever is sturdy and clearly labeled. This is industrial-grade reliability."

⭐⭐⭐⭐⭐ "Seamless Generator Switching" - Amanda Brooks (Facility Operations, Hospital)

Posted: 1 week ago

"Life-safety systems depend on uninterrupted power. This MCCB’s automatic transfer function worked perfectly during a recent drill. Fast, quiet, and precise. CE certification was a must for our compliance team."

⭐⭐⭐⭐☆ "Great for Retrofit Projects" - Daniel Foster (Electrical Contractor)

Posted: 3 weeks ago

"Installed in a commercial retrofit with limited panel space. Compact footprint helped. Only minor note: the wiring terminals could be more accessible. Otherwise, excellent build quality and clear labeling."

🎯 Reviews by Use Case Category

🏭 Industrial Manufacturing (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Fast response time (91% mentioned)
  • Heat dissipation (88% mentioned)
  • Adjustable trip settings (94% mentioned)

🏢 Commercial Buildings & Data Centers (28 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Seamless transfer switching (100% mentioned)
  • Dual-voltage support (93% mentioned)
  • Status indicators (89% mentioned)

🏡 High-Demand Residential & Backup Systems (19 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Automatic generator engagement (95% mentioned)
  • Outdoor durability (IP67 model) (87% mentioned)
  • Safety compliance (RoHS/CE) (84% mentioned)

♻️ Renewable & Hybrid Energy Systems (10 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Customizable thresholds (100% mentioned)
  • Compatibility with inverters/generators (90% mentioned)
  • Long-term stability under fluctuating loads (100% mentioned)

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