Midnite Solar Lightning and Surge Arrestor | 300AC | MNSPD-300-AC

Midnite Solar Lightning and Surge Arrestor | 300AC | MNSPD-300-AC

Marsoni

M251S

$94.36

Get it in 3 business days with 1 day shipping. Friday, May 29

Midnite Solar Lightning and Surge Arrestor | 300AC | MNSPD-300-ACMidnite Solar Lightning and Surge Arrestor 300AC MNSPD 300 AC MidNite Solar Surge Protective Device (MNSPD): Engineered for both indoor and outdoor use, our Type 1 SPD safeguards AC and DC systems, including transformer and transformer less inverters. It complements GFP protection circuits and defends service panels, load centers, or directly connected electronic devices. Available in three voltage options (MNSPD 300AC, MNSPD 300DC and MNSPD 600) for

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MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

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Reviewed in the United States on January 9, 2026