A rugged, NEMA 3R rainproof combiner engineered for high-voltage charge controllers in the 200–250 VDC class. The MNPV12-250 gives you a clean, code-friendly way to land up to six PV strings with 300 VDC touch-safe breakers (enclosure ships without breakers). Inside are big copper busbars and an insulating dead-front so wiring stays neat and safe.

You can run all six strings to one controller or split the box 3 + 3 to feed two independent HV controllers—handy for dual-MPPT systems or staged growth. The clear front window lets you read breaker states at a glance; labeled landing lugs and roomy knockouts make installs fast.

Aluminum construction, stainless hardware, and ETL listing round out a field-proven BOS piece for rooftops and ground-mounts that need tidy service loops and simple maintenance. 

Technical Specifications

Notes for installers: Size each string breaker to the module series-fuse rating, use copper conductors, and torque lugs per MidNite tables. When splitting 3 + 3, isolate the plus busbars as shown in the wiring diagram; PV-negative is common and grounds land on the dedicated bar. Maintain drip loops and leave service slack for future checks.