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Solaredge Optimizer 400W

price as of May 26
Solar Loan from 6.99%
All SOLAREDGE products


Dimensions LxWxH5" x 5.97" x 1.42"
Weight1.7 lbs
Manufacturer Part #P400-5NC4ARM-NM21
Operating Temperatures -40 °F to +185 °F
Warranty25 years Manufacture
Delivery Time 5-7 Business Days

About product

SolarEdge, Optimizer 400W, Add-On Box for one 72 or 96 cell module, 8-80V, 10.1A, MC4-compatible In/Out, 47" PV wire, UL 1000VDC, P400

The SolarEdge module add-on power optimizer is connected by installers to C-Si and thin-film modules. Ease of installation is completed by simply clipping the power optimizer to the module frame or by attaching it to the rail with a single screw. The add-on power optimizer is compatible with Zep Groove framed modules. The SolarEdge power optimizer attaches to the module frame with the certified Zep Compatible™ bracket without screws which reduces on-roof labor and mounting costs.


  • Up to 25% more energy
  • Superior efficiency (99.5%)
  • Mitigates all types of module mismatch losses, from manufacturing tolerance to partial shading
  • Flexible system design for maximum space utilization
  • Fast installation with a single bolt
  • Next generation maintenance with module-level monitoring
  • Module-level voltage shutdown for installer and firefighter safety

Reviews & Questions

  • Reviews (3)
  • Questions (2)
I ordered six units and I love them all. They are small, very very efficient and extremely reliable. The optimizer’s size allows it to fit into tight places. The installation was easy as well.
Dave L.
08/17/2021 11:26 am
These power optimizers are awesome. I'm using 4 of them currently. Their efficiency is phenomenal. I can recommend both the product and this store.
Ivan Brooks
08/06/2021 07:08 pm
1. Very heavy solid device 2. The manual is very well written and clear 3. Just works
Wendy Vallado
07/13/2021 04:08 pm

Leave a review

Hi, what’s the maximum input current?
08/11/2021, 16:13
It is 12.63 A.
There’s no mistake, is the warranty really 25 years?
Armondo Martel
08/02/2021, 09:10
Yes, the warranty is 25 years.