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MidNite Solar

300 VDC panel mount breaker - 80

SKU: MNEDC80-300

This is a variant of 300 VDC panel mount breaker

The MidNite Solar MNEDC-300 is a high-performance 300VDC panel mount circuit breaker designed for robust overcurrent protection in solar energy systems. Featuring a non-polarized design and hydraulic-magnetic technology, it ensures reliable performance across varying temperatures.

Categories

Breakers and Fuses

Product Details

BrandMidNite Solar
SKUMNEDC80-300
Weight1 lbs
WarrantyManufacturer Warranty

$54

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Have questions? Our team can help you select the right equipment for your project. Call 978-451-6890.

Product Overview

MidNite Solar 300 VDC Panel Mount Breaker – Reliable, High-Performance Protection for Solar Systems

In today's fast-evolving solar energy market, ensuring the safety and efficiency of your power system is more critical than ever.

For professionals and homeowners alike, choosing the right protective components can directly impact the performance and longevity of a solar setup.

Among these essential components, circuit breakers play a vital role. If you're looking for a dependable, high-quality solution for DC systems, the [300 VDC panel mount breaker] by MidNite Solar stands out as a top-tier option.

Built for safety, endurance, and consistent performance, this breaker is engineered to handle demanding environments and high-voltage applications with unmatched reliability.

This article provides an in-depth look at the features, technical specs, benefits, and use cases of the 300 VDC panel mount breaker to help you make an informed buying decision for your solar energy system.

What is the 300 VDC Panel Mount Breaker?

The 300 VDC panel mount breaker from MidNite Solar is a high-voltage direct current circuit breaker designed to provide overcurrent protection for solar power systems and other DC-based applications.

Its robust construction, high interrupt capacity, and non-polarized design make it suitable for a wide range of off-grid, hybrid, and battery-based setups.

Whether you're working with residential, commercial, or utility-scale solar energy systems, this breaker ensures safe circuit disconnection and system integrity under heavy loads and high-voltage conditions.

Key Features of the 300 VDC Panel Mount Breaker

  • High Voltage Rating (300 VDC): Designed for DC systems operating at voltages up to 300 volts.
  • Non-Polarized Design: Can be installed in either direction, simplifying installation and system configuration.
  • Consistent Tripping Performance: MidNite's hydraulic-magnetic technology ensures precise tripping, unaffected by ambient temperature fluctuations.
  • Rugged Construction: With a width of 1.5 inches (39mm) and panel mount design, it fits snugly in most enclosures and mounting configurations.
  • Indoor Environmental Rating (Type 1): Suitable for use in indoor installations where protection from external elements is not required.
  • Breaker Torque Value: 30 in-lbs (3.4 Nm), ensuring secure electrical connections.
  • Reliable Performance: Capable of breaking the full rated load at rated voltage repeatedly, without damage.

Technical Specifications

Voltage Rating: 300 VDC

  • Mounting Style: Panel mount

Width: 1.5 inches (39mm)

Breaker Type: Non-polarized

Breaker Torque Value: 30 in-lbs (3.4 Nm)

Environmental Rating: Type 1 (Indoor use)

  • Current Capacity: Varies based on model (typically available in a range of amperage ratings)

Manufacturer Warranty: 5 years

  • Compliance: Listed for the U. S. market, suitable for use in UL-compliant systems

Why Choose MidNite Solar?

MidNite Solar is a trusted name in the renewable energy industry, known for designing and manufacturing high-performance electrical protection components.

Their breakers are engineered to exceed industry standards and are tested to perform repeatedly under full rated load and voltage, ensuring long-term reliability.

All MidNite Solar breakers, including the 300 VDC panel mount breaker, can be used at 100% of their rated current when installed in MidNite enclosures. This offers system designers greater flexibility and assurance in circuit protection.

Benefits of Using the 300 VDC Panel Mount Breaker

  • Enhanced Safety: Protects your solar system from overcurrent and short-circuit events.
  • Temperature-Independent Operation: Tripping performance remains consistent regardless of ambient temperature.
  • Long Service Life: Built to endure repeated use without mechanical degradation or damage.
  • Easy Installation: Panel mount format and standardized dimensions allow for quick and secure installation.
  • Versatile Application: Non-polarized design supports a wide range of system layouts.
  • Compatible with MidNite Enclosures: Enables optimal use of breaker ratings.

Applications and Use Cases

The 300 VDC panel mount breaker is ideal for multiple solar and DC power applications, including:

  • Residential Solar Systems: Battery-based or grid-tied systems requiring high-voltage protection.
  • Commercial Solar Installations: Protects larger scale solar arrays and inverter inputs.
  • Battery Banks: Ensures safe disconnect of battery strings in energy storage systems.
  • Charge Controllers & Inverters: Used as an intermediary protection device.
  • RV and Marine Power Systems: Where DC circuits are required and space is limited.

Installation Tips and Best Practices

Ensure proper torque (30 in-lbs) when tightening terminal connections to avoid loose or overheated connections.

Mount in a clean, dry, indoor environment to maintain longevity and safety (Type 1 environmental rating).

Use only in systems that match the breaker's voltage and current rating.

Always follow NEC guidelines and local electrical codes when integrating breakers into your solar setup.

For optimal performance, pair with MidNite Solar enclosures which allow breakers to be used at full-rated current.

Why You Should Choose the MidNite Solar 300 VDC Panel Mount Breaker

When you invest in a 300 VDC panel mount breaker by MidNite Solar, you're choosing:

A product from a reputable brand with proven field performance

A robust and high-voltage protection solution tailored for modern solar applications

A breaker designed for long-term reliability and ease of installation

A solution that offers flexibility in layout and installation orientation

Peace of mind with a 5-year manufacturer's warranty

In any solar energy system, safety is non-negotiable. The 300 VDC panel mount breaker from MidNite Solar ensures your investment is protected against electrical faults while maintaining efficient system operation. With its solid construction, high interrupt capacity, and smart design, it's the ideal choice for those who value safety, performance, and peace of mind.

Visit solampio.com today to order your MidNite Solar 300 VDC panel mount breaker and explore more premium solar components for your project.

Frequently Asked Questions

What does 'non-polarized' mean for the MNEDC-300 breaker?+
A non-polarized breaker like the MNEDC-300 can handle current flow in either direction. This simplifies installation in solar systems where back-feed or bidirectional current may occur, as you don't have to worry about specific line and load orientation.
What is the recommended torque for the MNEDC-300 terminals?+
The MidNite Solar MNEDC-300 breaker requires a torque value of 30 in-lbs (3.4 Nm) to ensure a secure and safe electrical connection.
Does temperature affect the tripping performance of this breaker?+
No, the MNEDC-300 utilizes hydraulic-magnetic technology, which provides consistent tripping performance regardless of ambient temperature fluctuations, unlike standard thermal breakers.
Can this breaker be used in outdoor enclosures?+
The breaker itself has a Type 1 indoor environmental rating. It must be installed inside a NEMA-rated outdoor enclosure or a protected indoor panel to ensure safety from the elements.

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