No products in the cart.
SolarEdge C651U Commercial Power Optimizer, 650 W (Modules up to 715 W), Domestic Content Eligible
$76.99 Call for AvailabilityCheck Availability
28 people are viewing this product right now
- For SolarEdge commercial three-phase inverters only: USE-SIN / SE-SIN, SE-DBL and SE-TRI Synergy systems. Not for TerraMax (TerraMax uses H1300).
- 650 W rated input; modules with front-side power up to 715 W at STC; 80 V max input voltage; 20 A max module Isc.
- 99.5% maximum / 98.8% weighted efficiency; SafeDC; PV rapid shutdown NEC 2014–2023.
- Cannot be mixed with other power optimizer models in the same string.
- 25-year warranty; USA Domestic Content Eligible (per SolarEdge). Priced per optimizer; project quantities confirmed with freight.
SolarEdge C651U Commercial Power Optimizer
The C651U is SolarEdge’s USA-manufactured commercial power optimizer for rooftop and C&I projects using SolarEdge three-phase commercial inverters. The orderable SolarEdge part number is C651U-1GMVMRRU.
Compatibility (per SolarEdge): for commercial three-phase inverters with part numbers xSE-SIN-USxxIxxxx (for example USE-SIN-USR0IBNS8), SE-DBL-USxxIxxxx and SE-TRI-USxxIxxxx (for example SE-TRI-US00IBNS4). C651U cannot be mixed with any other power optimizer model in the same string. It is not used with SolarEdge TerraMax inverters.
Specifications
| Item | Value |
|---|---|
| Rated input DC power | 650 W (modules with front-side max power up to 715 W at STC; +5% power tolerance) |
| Absolute max input voltage (Voc) | 80 Vdc |
| MPPT operating range | 12.5–80 Vdc |
| Max short-circuit current (Isc) of connected module | 20 Adc (bifacial: front-side Isc) |
| Max adjusted Isc (with safety factor) | 25 Adc |
| Maximum / weighted efficiency | 99.5% / 98.8% |
| Max output power / current / voltage | 650 W / 24 Adc / 60 Vdc |
| Safety output voltage (SafeDC) | 0.5 ± 0.075 Vdc |
| PV rapid shutdown | NEC 2014–2023 |
| Safety / EMC | IEC 62109-1 (class II), UL 1741, UL 3741, CSA C22.2#107.1 / FCC Part 15, IEC 61000-6-2, IEC 61000-6-3 |
| Max system voltage | 1000 V |
| Dimensions (W × L × H) | 5.03 × 6.10 × 2.05 in (128 × 155 × 52 mm) |
| Weight | 2.38 lb (1080 g) |
| Connectors | MC4 input / MC4 output |
| Wire length | Input 1.4 m (4.59 ft); output (+) 3.0 m (9.84 ft) / (-) 0.10 m (0.32 ft) |
| Operating temperature | -40 to +185 °F (-40 to +85 °C), derating above +65 °C |
| Protection rating | IP68 / NEMA 6P |
| Warranty | 25 years |
String design (per SolarEdge)
| Inverter | Optimizers per string | Max continuous power per string | Max connected STC power per string |
|---|---|---|---|
| SE10K (208V) | 13–57 | 10,000 W | 15,000 W |
| SE17.3K (208V) | 13–57 | 9,600 W | 11,400 W (1 string) / 15,600 W (2+ strings) |
| SE30K, SE33.3K, SE40K (480V) | 18–57 | 20,400 W | 22,650 W (1 string) / 30,400 W (2+ strings) |
The same rules apply to Synergy units of equivalent rating. Maximum difference in string length connected to one unit: 5 optimizers. See the SolarEdge compatibility matrix for three-phase inverters.
Domestic content
SolarEdge lists the C651U as USA Domestic Content Eligible and manufactured in Tampa, Florida. Domestic content eligibility of the inverter also depends on pairing with C651U. Project qualification depends on the whole project; confirm with your tax advisor.
Pricing, availability and ordering
The price shown is CSE Solar USA’s listed price for one power optimizer; project quantities are quoted with freight. Commercial SolarEdge equipment is confirmed per project: before an order is placed, CSE verifies current availability, lead time and freight to your site. Use Check Availability or contact CSE with your project location, quantities and timeline.
Documentation
- Commercial Power Optimizer C651U, USA Domestic Content Eligible – datasheet (North America) (SolarEdge Knowledge Center)
Specifications on this page are taken from the SolarEdge datasheet DS-000245-NAM (April 14, 2025). SolarEdge may update its documentation; always design and install to the latest SolarEdge datasheet and installation guide.
| Weight | 2.38 lbs |
|---|---|
| Dimensions | 6.10 × 5.03 × 2.05 in |
| MPN | C651U-1GMVMRRU |
