MidNite Solar 50A 300VDC Circuit Breaker for Solar PV Systems MNEPV50-300

MidNite Solar 50A 300VDC Circuit Breaker for Solar PV Systems MNEPV50-300

Regular price $28.77
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MidNite Solar 50A 300VDC Circuit Breaker for Solar PV Systems MNEPV50-300

MidNite Solar 50A 300VDC Circuit Breaker for Solar PV Systems MNEPV50-300

Available
MPN No: MNEPV50-300
Regular price $28.77

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Regular price $28.77

MidNite Solar 50A 300VDC Circuit Breaker for Solar PV Systems MNEPV50-300

The MidNite Solar MNEPV50-300 is a high-quality DC circuit breaker designed for solar photovoltaic (PV) systems requiring reliable overcurrent protection. Rated at 50 amps and 300VDC, it is ideal for protecting PV arrays, battery circuits, and DC distribution systems.

This breaker features a DIN rail mount design, allowing for quick and easy installation in combiner boxes and electrical enclosures. Built for durability, it is engineered to safely interrupt fault currents and maintain long-term system reliability.

Designed specifically for DC solar applications, the MNEPV50-300 is polarized, requiring correct wiring orientation to ensure proper operation and safety.


Key Features

  • 50A, 300VDC Rating
    Provides dependable overcurrent protection for PV arrays, battery systems, and DC circuits. 

  • DIN Rail Mount Design
    Compatible with standard 35mm DIN rail systems for easy installation in combiner boxes and enclosures. 

  • High Interrupt Rating (10,000 AIC)
    Capable of safely interrupting high fault currents for enhanced system protection.

  • Polarized Breaker Design
    Ensures proper DC current flow and safe operation when installed correctly.

  • Continuous Duty Rated
    Designed to operate continuously at full rated load without performance degradation. 

  • UL/ETL Listed
    Certified for use in the United States and Canada, meeting safety and compliance standards.

  • Compact Form Factor
    Space-saving design allows efficient use of enclosure space.

  • Wide Compatibility
    Works with MidNite Solar, Magnum Energy, and OutBack Power enclosures and combiner boxes.


Best Uses

  • PV Array Protection
    Protects solar strings and combiner circuits from overload and short-circuit conditions.

  • Battery System Protection
    Provides safe DC circuit protection in energy storage systems.

  • Residential & Commercial Solar Systems
    Suitable for a wide range of solar installations requiring 300VDC protection.

  • Combiner Boxes & Enclosures
    Designed for integration into DIN rail-based solar electrical systems.


Product Specifications

Specification Details
Manufacturer MidNite Solar
Model MNEPV50-300
Product Type DC Circuit Breaker
Current Rating 50 Amps
Voltage Rating 300 VDC
Poles 1-Pole (typical) / Double-break variants available
Mounting Type DIN Rail (35mm)
Interrupt Rating 10,000 AIC
Wire Range 14 AWG – 6 AWG
Torque Specification 20 in-lbs (2.3 Nm)
Certification UL / ETL Listed (US & Canada)
Application Solar PV & DC Circuit Protection
Quantity Single Unit (1 pc)
Warranty 5 Years

 

About MidNite Solar:

MidNite Solar is a leading manufacturer of renewable energy balance-of-system components, offering high-quality circuit protection devices, combiners, and electrical solutions designed for safety, durability, and long-term performance in solar installations.


Reliable 300VDC Protection for Solar Systems

The MidNite Solar MNEPV50-300 Circuit Breaker delivers dependable overcurrent protection, easy DIN rail installation, and long-lasting performance—making it an essential component for safe and efficient solar PV systems.

 

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.


Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.