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Miniature Circuit Breakers
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
  • BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box
BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box

BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box

  • >= 60 Pieces
    $12
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BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • DC Circuit Protection: Safeguards photovoltaic systems and high-voltage DC circuits (up to 1500V/40A) against overcurrents, short circuits, and ground faults.
  • Automatic Tripping Mechanism: Cuts power instantly during faults and features a manual reset for rapid system restoration.

Key features

  • 1. Advanced Material Technology

    • With a rugged metal and durable plastic construction, ensure reliable performance in demanding electrical environments.

  • 2. User-Friendly Interactive Design

    • With a clear visual status indicator and manual reset button, easily monitor circuit status and restore power after faults* compared to models without visible indicators.

  • 3. High-Performance DC Compatibility

    • With a 1500V DC rating and 40A capacity, handle high-voltage solar systems more effectively than standard AC circuit breakers*.

  • 4. Tailored Solar System Solutions

    • Designed specifically for photovoltaic combiner boxes, providing optimized protection for solar energy systems* compared to general-purpose breakers.

  • 5. Rigorous International Certifications

    • Certified to LVD, CB, and UL standards, ensuring compliance with global safety and quality regulations*.

Product details

BENY Solar DC Miniature Circuit Breaker 3P 1500V 40A Mini Circuit Breaker MCB for Photovoltaic Combiner Box

The BENY Solar DC Miniature Circuit Breaker (BB2-40) is a 3-pole, 1500V DC, 40A MCB designed for photovoltaic combiner boxes. Built with durable plastic and metal materials, it offers advanced protection against overcurrents, short circuits, and ground faults. Certified to LVD, CB, and UL standards, it ensures safety and compliance in solar energy systems. Its compact DIN rail mounting and IP20 rating make it ideal for harsh outdoor environments.

Technical specifications

FeatureSpecificationBenefit
Voltage Rating1500V DCHandles high-voltage solar PV systems
Rated Current40ASupports robust power distribution
Protection CurveBCD Curve BPrecise tripping for sensitive equipment
Number of Poles3Ensures balanced protection in 3-phase systems
IP RatingIP20Dust-resistant for outdoor use
CertificationsLVD, CB, ULGlobal compliance for safety and quality
Protection FeaturesOvercurrent, short circuit, ground fault, arc faultComprehensive safety for critical systems
MountingDIN RailEasy integration into electrical panels

Customization guide

Adjustable parameters include rated current (up to 63A) and material composition (e.g., flame-retardant polymers) to meet specific load requirements or environmental conditions.

Get inspired

With its 1500V DC rating and triple-layer protection (overcurrent, arc fault, and ground fault), the BB2-40 ensures uninterrupted power flow in solar farms and industrial setups. Its UL certification and compact design make it a top choice for global renewable energy projects.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Rating1000V DC1200V DC1500V DC (+50%)*
CertificationsLVDLVD + CBLVD + CB + UL
Protection FeaturesOvercurrent+Arc Fault+Arc Fault + GFCI
Duty CycleStandardEnhancedIndustrial-grade

Supplier's note

  1. Technical Breakthroughs:

    • 1500V DC Voltage Handling (Pro Model): Enables safe operation in high-power solar arrays, 50% higher than industry benchmarks.
    • BCD Curve B: Reduces nuisance tripping in sensitive DC systems compared to standard Curve C.
    • UL Certification: Expands market access for global solar projects.

  2. Version Selection Guide:

    • Base Model: Ideal for residential solar setups with moderate power demands.
    • Advanced Model: Suitable for commercial systems requiring arc fault protection.
    • Pro Model: Best for industrial-scale solar farms needing GFCI and UL compliance. Example: The Pro’s 1500V rating ensures stable power in large PV installations, while its GFCI capability prevents shocks in wet environments like coastal solar farms.

*Compared to industry-standard 1000V DC models.

Frequently asked questions

  • Which miniature circuit breaker suits photovoltaic combiner boxes for high-voltage solar systems?

  • How do I maintain the BENY DC MCB to ensure long-term reliability in outdoor solar setups?

  • What are the key differences between AC and DC MCBs for solar energy systems?

  • Can the BENY 3P MCB be customized for existing electrical panels?

  • Is the BENY 1500V MCB certified for global solar projects?

  • What safety features does the BENY 40A DC MCB offer for ground fault protection?

  • How does the BENY MCB handle overcurrent in high-demand solar installations?

  • Are there environmental considerations for using the BENY Solar DC MCB outdoors?

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

☀️ Residential Solar Installer Reviews

⭐⭐⭐⭐⭐ James Wilson - Solar Installation Contractor
"Installed the BENY Solar DC 3P 1500V MCB in a rooftop PV system back in May 2024, and it’s been flawless over the past 6 months. The visual status indicator is a game-changer—lets me quickly assess if a trip occurred without opening the combiner box. Integration with the DIN rail was seamless, and the UL certification gave the homeowner peace of mind during inspection."

Purchase Date: May 2024 | Usage Period: 6 months

🏢 Commercial Solar Project Engineer Reviews

⭐⭐⭐⭐⭐ Elena Martinez - Electrical Project Engineer
"We specified the Pro Model of this MCB for a 1.2MW commercial solar farm in Arizona. After 8 months of operation under extreme heat and dust, the units have shown zero failures. The 1500V DC rating and GFCI support were critical for code compliance, and the B curve response has prevented nuisance tripping during morning inrush currents. A solid performer in demanding environments."

Purchase Date: September 2024 | Usage Period: 8 months

🔧 Industrial Maintenance Technician Reviews

⭐⭐⭐⭐☆ David Chen - Facility Maintenance Lead
"Using these breakers in our data center’s backup DC power distribution setup since February 2025. They’ve handled multiple short-circuit events cleanly and reset quickly after fault resolution. Only reason I’m not giving 5 stars is that the IP20 rating means we had to add extra enclosure protection for indoor areas with high dust levels. Otherwise, excellent build quality and reliable tripping performance."

Purchase Date: February 2025 | Usage Period: 5 months

🌾 Off-Grid Renewable Energy Installer Reviews

⭐⭐⭐⭐⭐ Amina Diallo - Off-Grid Systems Specialist
"Deployed the BENY 3P MCB in a remote solar microgrid in West Africa last November. Harsh conditions, but the breaker has held up well. The arc fault and ground fault protection helped prevent a potential fire during a lightning surge event. Easy to integrate into standard panels, and the manual reset is intuitive even for local technicians with limited training."

Purchase Date: November 2024 | Usage Period: 7 months

🏭 Factory Electrical Supervisor Reviews

⭐⭐⭐⭐⭐ Thomas Reed - Industrial Plant Supervisor
"We retrofitted our 1200V DC busbars with the BENY Solar DC MCBs in January 2025 to replace older AC-type breakers that kept failing due to arc reignition. Big improvement. The DC-optimized design handles switching cleanly, and having LVD and CB certifications simplified our compliance audit. Highly recommend for any industrial DC application."

Purchase Date: January 2025 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 10 reviews (11.2%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Renewable Energy Safety Consultant

Dr. Linda Park - PV System Safety Expert
"The BENY Solar DC MCB stands out for its triple-layer protection (overcurrent, arc fault, and ground fault) and true 1500V DC capability. In my assessments, it exceeds IEC 60947-2 standards and is one of the few UL-listed DC MCBs suitable for large-scale solar farms. The B curve response is especially valuable for minimizing downtime in sensitive installations."

Electrical Distribution Design Specialist

Rajiv Mehta - Power Systems Engineer
"After reviewing dozens of DC protection solutions, I now specify the BENY Pro Model for all new commercial PV projects. Its DIN rail compatibility, global certifications, and customizable current ratings make it ideal for scalable, code-compliant designs. A benchmark for modern solar circuit protection."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Protection in Harsh Conditions" - Carlos Mendez (Solar Farm Operator)

Posted: 2 days ago

"Installed across 20+ combiner boxes. No false trips, even during monsoon season. The status indicators save hours during troubleshooting. Exceeded expectations."

⭐⭐⭐⭐⭐ "Smooth Integration, Certified Peace of Mind" - Naomi Lee (Electrical Contractor)

Posted: 10 days ago

"Used in a residential solar upgrade. UL certification made permitting easy. Compact size fits tight spaces. Will definitely use again."

⭐⭐⭐⭐☆ "Solid Build, Could Use Higher IP Rating" - Derek Foster (Industrial Electrician)

Posted: 3 weeks ago

"Great performance so far. Only wish it had IP22 or better for indoor industrial use where condensation is an issue. Still, best 1500V DC MCB I’ve worked with."

🎯 Reviews by Use Case Category

☀️ Residential Solar Installations (32 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • DIN rail mounting (88% mentioned)
  • UL certification for code compliance (82% mentioned)
  • Visual status indicator (79% mentioned)

🏢 Commercial & Industrial Solar (41 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • 1500V DC compatibility (95% mentioned)
  • BCD Curve B for stable operation (90% mentioned)
  • GFCI and arc fault protection (Pro Model) (85% mentioned)

⚙️ Industrial DC Power Systems (16 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High-voltage reliability (94% mentioned)
  • Fast fault interruption (92% mentioned)
  • Global safety certifications (LVD, CB, UL) (100% mentioned)

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