300VDC din rail mount breaker - Polarized - 15

SKU: MNEPV-300-15

This is a variant of 300VDC din rail mount breaker - Polarized

Other Options

300VDC din rail mount breaker - Polarized - 10

MNEPV-300-10

$46

300VDC din rail mount breaker - Polarized - 15

MNEPV-300-15

$46

300VDC din rail mount breaker - Polarized - 7

MNEPV-300-7

$46

The MidNite Solar MNEPV-300 series provides reliable 300VDC circuit protection specifically engineered for the solar industry. These polarized, DIN rail mount breakers are ETL listed for the US and Canada, ensuring high-performance safety for your PV system.

Product Overview

Note: Branch Circuit Rated 489A

MidNite's Breakers Are Rated To Break The Full Rated Load At The Rated Voltage Repeatedly, With NO DAMAGE. Always Use A Properly Sized Breaker For Disconnecting. MNEPV Breakers Are The Same As CBI QY Breakers Except The Standard Used Is Inadequate For The Solar Industry. MidNite Breakers Have Been Evaluated By ETL To 300VDC And Are Listed For US And Canada. All Of The NRTL Listings Still Apply. Breakers Ordered Under The CBI Part Numbering System Will Not Be Listed For 300VDC And In Many Cases Are Not Suitable For The Solar Industry. The MidNite Solar 300VDC din rail mount breaker - Polarized is a high-quality breaker designed for use in solar power systems. This breaker is available in 7, 10, and 15 Amps, making it suitable for a variety of applications. Its polarized design ensures safe and reliable operation, while its din rail mount makes installation quick and easy. The MidNite Solar 300VDC din rail mount breaker is a dependable choice for protecting your solar energy system from overloads and short circuits, providing peace of mind and optimal performance. Read About The 165 VDC ETL TEST STORYMNEPV30-300 Is Discontinued And Replaced With MNEPV30-300-1PNP

Breaker Torque Value: 20 In-Lbs (2.3NM)All MidNite Circuit Breakers Hold 100% Rated Current Independent Of Ambient Temperature. POLARIZED Environmental Rating - Type 1 (Indoor) Listed For US & Canada When Used In MidNite Solar Enclosures DC Voltage Rating - 300VDC Wire Size Range - 14 To 6 AWG Width - 1 Inch (26mm) Number Of Poles - 2 Warranty - 5 Yrs

Frequently Asked Questions

What does it mean that the MNEPV-300 breaker is polarized?+

A polarized breaker must be wired in a specific direction relative to the current flow. For solar PV systems, this means the 'line' and 'load' must follow the manufacturer's markings to ensure the internal arc-quenching magnets function correctly during a trip.

Is this breaker compatible with non-MidNite Solar enclosures?+

While the MNEPV-300 is a standard 1-inch (26mm) DIN rail mount breaker, it is specifically listed for use in the US and Canada when installed within MidNite Solar enclosures. Using them in third-party enclosures may void the NRTL listing.

What is the difference between MidNite MNEPV and standard CBI QY breakers?+

MidNite MNEPV breakers have been specifically evaluated by ETL to 300VDC for the solar industry. Standard CBI QY breakers, while physically similar, often lack the specific 300VDC listing and testing required for safe operation in high-voltage solar arrays.

Does temperature affect the performance of this circuit breaker?+

No. All MidNite Solar circuit breakers are designed to hold 100% of their rated current regardless of ambient temperature, providing consistent protection in varied environments.

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