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Huawei SUN2000 450W Smart PV Optimizer
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Huawei SUN2000 450W Smart PV Optimizer

SUN2000-450W-P2
£32.25 ex VAT £38.70 inc VAT

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High Conversion EfficiencyMore of your solar reaches the home
MPPT TrackingMaximises yield in changing light
Grid CompliantMeets UK G98 / G99 requirements
Technical Specifications
Rated Power (Pmax)450 W
Module Efficiency99.5 %
MPPT Quantity1
Min MPPT Voltage10 V
Max MPPT Voltage80 V
Max Input Voltage80 V
Max DC Current14.5 A
Max DC Inputs1
Integrated DC SwitchNo
Height140 mm
Width75 mm
Depth28 mm
Weight0.6 kg
ConnectorStäubli MC4
Cable LengthInput 0.15 m, output 1.3 m
IP RatingIP68
Operating Temperature-40 °C to +85 °C

Huawei SUN2000 450W Smart PV Optimizer

Huawei SUN2000 450W Smart PV Optimizer is a Huawei SUN2000-450W-P2 power optimiser rated 450 W, for one PV module.

A power optimiser is a DC-DC converter that sits behind an individual PV module, between the module and the string. It tracks that one module's maximum power point continuously, so a module that is shaded, soiled, differently oriented or simply weaker than its neighbours no longer drags the whole string down to its own output. The optimiser then presents a fixed, well-behaved voltage to the string, which is what allows longer strings and mixed orientations on the same inverter.

Huawei's Smart PV Optimizer performs the same job inside a Huawei FusionSolar system, talking to the inverter over the DC power line using MBUS rather than a separate communication cable. A failed unit is bypassed by the string rather than taking the string with it.

Input

Rated input DC power 450 W
Connection method Single input
Absolute maximum input voltage (Voc) 80 V
MPPT operating range 10 V – 80 V
Maximum short circuit current (Isc) of connected module 14.5 A

Output and efficiency

Maximum efficiency 99.5 %
Weighted efficiency 99.0 %
Maximum output current 15 A
Maximum output voltage 80 V
Communication protocol MBUS, over the DC power line
Output bypass on failure Yes — a failed optimiser is bypassed by the string
Output voltage in standby 0 V
Output impedance in standby 1 kΩ ± 10 %
Relative humidity 0 – 100 %

Mechanical and environmental

Width 75 mm
Height 140 mm
Depth 28 mm
Weight 0.6 kg
Input and output connector Stäubli MC4
Cable lengths Input 0.15 m, output 1.3 m
Operating temperature range −40 °C to +85 °C
Protection rating IP68
MPPT trackers 1
Compatible inverters SUN2000-12K/15K/17K/20K/25K-MB0, SUN2000-8K/10K-LC0, SUN2000-2/3/3.68/4/4.6/5/6KTL-L1, SUN2000-3/4/5/6/8/10KTL-M1, SUN2000-12/15/17/20/25KTL-M5 and SUN2000-30K/36K/40K-M3
Fire safety VDE-AR-E 2100-712:2018-12

Between 70 °C and 85 °C the optimiser may shut down on over-temperature protection and raise an alarm. It resumes on its own once the temperature falls, with no damage.

Huawei do not state a warranty term on this datasheet, so none is claimed here.

Before you order

  • UK only: this optimiser has been replaced by the 600 W version, the SUN2000-600W-P.
  • The SUN2000-450W-P2 and the MERC-1100/1300W-P must not be mixed under the same Smart Energy Controller or PV Controller.

The supplier copy on this listing claimed a maximum efficiency of 99.6 %. Huawei's own datasheet, version 02-202311, says 99.5 % maximum and 99.0 % weighted. The datasheet figure is used.

Additional suggested items

Ordered with this optimiser more often than anything else:

Datasheets, application notes and installation guides are in the Documents tab below. See the rest of our inverter and optimiser range and our solar panels, or contact our sales team at sales@clearraysolar.com if you need help matching an optimiser to an inverter.

High Efficiency 99.5 %More power from the same roof space
IP68 RatedBuilt for UK weather conditions
Have questions?

Three figures govern it, all in the Technical Specifications: the MPPT voltage range, the maximum input voltage and the maximum DC power. Tell us which panel you're pairing it with and we'll confirm the string layout.

G98 covers installations up to 3.68kW per phase and is notified to your DNO after commissioning. Anything larger needs G99 approval agreed beforehand. We can flag which one your design falls under.

A hybrid inverter takes a DC-coupled battery directly. A standard string inverter needs an AC-coupled battery alongside it. The Technical Specifications show which type this unit is.

Yes, up to the maximum DC power figure in the specifications. Modest oversizing is normal practice - it lifts output in winter and at either end of the day, at the cost of brief clipping at midday peak.

An MPPT tracks the optimum operating point for a string of panels. You want one per roof orientation or pitch, because panels facing different directions on a single tracker drag each other down.

The standard manufacturer warranty is listed under the Warranty tab. Extended cover is available on most brands - see Warranty Extensions.

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Shipping & Returns

Delivery times vary by region:

  • UK — 1-2 business days
  • Highlands & Islands — 1-2 business days

Returns accepted within 14 days of delivery for unused items in original packaging.