SolarEdge P401 Power Optimizer
Used SolarEdge P401 optimizers, 38 of them, off a 2022 ground mount we tore down ourselves. One bolts to each module and does module-level MPPT, so a shaded or dirty panel stops dragging the whole string down, and you get per-panel monitoring plus the module-level shutdown that rapid shutdown rules ask for. They fit high power 60 and 72-cell modules up to 60 volts open circuit. Watch the rating: SolarEdge listed the P401 at 400W when ours were built in early 2022, then re-rated the same model to 430W in a later datasheet, so size your string to 400W unless SolarEdge confirms otherwise for your serial. They only do anything on a SolarEdge inverter, and they sell used and as-is.
In stock and ready to ship.
5.036 Google reviews- Model
- SolarEdge P401. Label part number on these units: P401-6NM4MRM.
- Weight
- 1.5 lb (655 g), including cables
- Listing
- UL1741, IEC62109-1 class II safety, NEC/PVRSS. EMC: FCC Part 15 Class B, IEC61000-6-2, IEC61000-6-3. Material UL94 V-0, UV resistant. RoHS yes.
- Warranty
- None from Ape Solar. Used, sold as-is. The datasheet carries a 25 year warranty badge but states no start date or transfer terms, and these serials have not been checked, so treat remaining factory coverage as unknown.
- Condition
- Used, 2022 vintage, recovered from a working array in July 2026. No per-unit test record yet; meter before building a string around them.
- Dimensions
- 5.1 x 6 x 1.16 in (129 x 153 x 29.5 mm)
About this item
Used SolarEdge P401 optimizers, 38 of them, off a 2022 ground mount we tore down ourselves. One bolts to each module and does module-level MPPT, so a shaded or dirty panel stops dragging the whole string down, and you get per-panel monitoring plus the module-level shutdown that rapid shutdown rules ask for. They fit high power 60 and 72-cell modules up to 60 volts open circuit. Watch the rating: SolarEdge listed the P401 at 400W when ours were built in early 2022, then re-rated the same model to 430W in a later datasheet, so size your string to 400W unless SolarEdge confirms otherwise for your serial. They only do anything on a SolarEdge inverter, and they sell used and as-is.
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