The Midnite Solar MNEPV-300 300V DC DIN Mount Circuit Breakers. DIN-mount breakers fit MidNite Solar and Magnum Energy enclosures, and MidNite Solar and OutBack Power PV array combiners. These breakers are polarized, so the positive wire from the power source needs to be connected to the “+” side of the breaker.
The maximum PV array voltage must not exceed the voltage rating of the breakers used.
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.
All MidNite circuit breakers hold 100% rated current independent of ambient temperature.
- Number Of Poles – 2
- 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)
- Breaker Torque Value: 20 In-Lbs (2.3NM)
- Warranty – 5 yrs