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<p>SMA Sunny Highpower PEAK3 125-US-21
Utility-Scale String Inverter | 1500 VDC System | 480 VAC Output

98.5%

CEC Efficiency

25 yr

Design Life

125 kVA

Max Power

Product Overview
The SMA Sunny Highpower PEAK3 125-US-21 delivers industry-leading efficiency for utility-scale solar installations. With high power density and compact rack-mount design, this string inverter maximizes energy harvest while minimizing installation footprint and balance-of-system costs.

Why Choose PEAK3 125-US-21?

✓ 480 VAC interconnection at 1,500 VDC for cost-effective distributed generation
✓ OptiCool technology with variable-speed forced convection for optimal thermal management
✓ Type 4X enclosure rated for outdoor installation in harsh environments
✓ Wide MPP voltage range (705–1450 V) for maximum design flexibility
✓ Compact rack-mount design for efficient space utilization
✓ Advanced grid management features for utility compliance

Technical Specifications

Model
SHP 125-US-21 (MPN: 3-125-1500-2-21)

AC Output Power
125 kW / 125 kVA @ 480 VAC

Max DC Voltage
1500 VDC

MPPT Configuration
1× MPPT

MPP Voltage Range
705–1450 V (rated), 684–1500 V (operating)

CEC Efficiency
98.5%

Enclosure Rating
Type 4X (outdoor)

Cooling System
OptiCool (variable-speed forced convection)

Installation
Rack-mount

Certifications &amp; Compliance
✓ UL 1741 SA/SB Certified &nbsp;|&nbsp; ✓ IEEE 1547-2018 Compliant &nbsp;|&nbsp; ✓ Rule 21 &nbsp;|&nbsp; ✓ CA SGIP Eligible

Documentation

• Product Page (SMA)
• Product Datasheet (PDF)

⏱ Lead Time: In Stock | Typical delivery: 4-10 days
Contact us for current availability and project pricing.

Specifications &amp; Documents: Full specifications &amp; datasheet for SMA Sunny Highpower Peak3 (SHP 125-US-21) 125KV 480VAC 1500V String Inverter 3-125-1500-2-21
Manufacturer: SMA Solar Technology
MPN: 125-US-21-125KV-480VAC-1500V
Model: US-21
Vendor: SMA
Source: Shopify live catalog 2026-09-09; product 7511214948486; variant 42990145732742
Tags: SMA, SMA; Sunny Highpower; PEAK3; SHP 125-US-21; 1500V; 480VAC; 125kW; 98.5% CEC; Type 4X; OptiCool; UL 1741-SB; IEEE 1547-2018; ennexOS</p>

<p>Kivanc Solar 550BThis PES Supply product is supplied by PES Supply for commercial, industrial, residential energy, or electrical applications as applicable. Confirm final configuration and compatibility before ordering.

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Manufacturer: PES Supply
•
Model: 550B
Ordering and fulfillmentPrice, stock, freight, lead time, warranty eligibility, and delivery requirements can vary by configuration and destination. PES Supply will confirm these details before fulfillment.
Manufacturer: PES Supply
MPN: 550B
Vendor: Kivanc Solar
Source: Shopify live catalog 2026-09-09; product 7556907270278; variant 43548615180422
Tags: Solar Equipment, zero-price-fix</p>

<p>Chint SSC Shade Cover for 50kW or 60kW CPS Three Phase Inverter
Available at PES Supply with competitive pricing and fast shipping.
Vendor: Chint Power
Source: Shopify live catalog 2026-09-09; product 7664072065158; variant 44187712323718
Tags: Accessories, US Solar Supplier</p>

<p>Kivanc Solar 555BThis PES Supply product is supplied by PES Supply for commercial, industrial, residential energy, or electrical applications as applicable. Confirm final configuration and compatibility before ordering.

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Manufacturer: PES Supply
•
Model: 555B
Ordering and fulfillmentPrice, stock, freight, lead time, warranty eligibility, and delivery requirements can vary by configuration and destination. PES Supply will confirm these details before fulfillment.
Manufacturer: PES Supply
MPN: 555B
Vendor: Kivanc Solar
Source: Shopify live catalog 2026-09-09; product 7556907303046; variant 43548615213190
Tags: Solar Equipment, zero-price-fix</p>

<p>Kivanc Solar 560BThis PES Supply product is supplied by PES Supply for commercial, industrial, residential energy, or electrical applications as applicable. Confirm final configuration and compatibility before ordering.

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Manufacturer: PES Supply
•
Model: 560B
Ordering and fulfillmentPrice, stock, freight, lead time, warranty eligibility, and delivery requirements can vary by configuration and destination. PES Supply will confirm these details before fulfillment.
Manufacturer: PES Supply
MPN: 560B
Vendor: Kivanc Solar
Source: Shopify live catalog 2026-09-09; product 7556907368582; variant 43548615245958
Tags: Solar Equipment, zero-price-fix</p>

<p>Kinse Solar KS-100-FL
Brand: PES Global

Category: Solar Panels

Price: $17.46

Product Specifications

•
Cell Type: Monocrystalline

Purchase Kinse Solar KS-100-FL from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: KS-100-FL
Vendor: Kinse Solar
Source: Shopify live catalog 2026-09-09; product 7556907630726; variant 43548618621062
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Kinse Solar KS-200-FL
Brand: PES Global

Category: Solar Panels

Price: $34.92

Product Specifications

•
Cell Type: Monocrystalline

Purchase Kinse Solar KS-200-FL from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: KS-200-FL
Vendor: Kinse Solar
Source: Shopify live catalog 2026-09-09; product 7556907663494; variant 43548621799558
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>SoliTek 435W
Brand: PES Supply

Category: Solar Equipment

Price: $99.99

Product Specifications
•
Wattage: 435W

Purchase SoliTek 435W from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support.
Manufacturer: PES Supply
Vendor: SoliTek
Source: Shopify live catalog 2026-09-09; product 7556035936390; variant 43537812291718
Tags: 435W, size:400-459w-panels, Solar Equipment, zero-price-fix</p>

<p>Sinoltech FLEX-03N-110W
Brand: Eaton

Category: Solar Panels

Price: $21.34

Product Specifications

•
Wattage: 110
•
Cell Type: Monocrystalline

Purchase Sinoltech FLEX-03N-110W from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: Eaton
MPN: FLEX-03N-110W
Vendor: Sinoltech
Source: Shopify live catalog 2026-09-09; product 7556907696262; variant 43548621832326
Tags: Eaton, Monocrystalline, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Reliance R310A 120/240-Volt 30-Amp 10-Circuit Pro/Tran Outdoor Transfer Switch
Available from PES Supply, a PES Global Group Company.
MPN: R310A-120/240-Volt-30-Amp-10-Circuit
Vendor: Reliance
Source: Shopify live catalog 2026-09-09; product 7664330932358; variant 44188474015878
Tags: gap-product</p>

<p>Sinoltech FLEX-03N-130W
Brand: Eaton

Category: Solar Panels

Price: $25.22

Product Specifications

•
Wattage: 130
•
Cell Type: Monocrystalline

Purchase Sinoltech FLEX-03N-130W from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: Eaton
MPN: FLEX-03N-130W
Vendor: Sinoltech
Source: Shopify live catalog 2026-09-09; product 7556907860102; variant 43548625109126
Tags: Eaton, Monocrystalline, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Yinghe Solar HLSP-130M
Brand: PES Global

Category: Solar Panels

Product Specifications

•
Cell Type: Monocrystalline

Purchase Yinghe Solar HLSP-130M from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: HLSP-130M
Vendor: Yinghe Solar
Source: Shopify live catalog 2026-09-09; product 7557053972614; variant 43550769840262
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Teko Energy TEKO-144NBGH-560
Brand: PES Global

Category: Solar Panels

Price: $25.14

Product Specifications

•
Cell Type: Monocrystalline

Purchase Teko Energy TEKO-144NBGH-560 from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: TEKO-144NBGH-560
Model: 144NBGH
Vendor: Teko Energy
Source: Shopify live catalog 2026-09-09; product 7556907925638; variant 43548625141894
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Qudra 395WThis PES Supply product is supplied by PES Supply for commercial, industrial, residential energy, or electrical applications as applicable. Confirm final configuration and compatibility before ordering.

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Manufacturer: PES Supply
•
Model: 395W
Ordering and fulfillmentPrice, stock, freight, lead time, warranty eligibility, and delivery requirements can vary by configuration and destination. PES Supply will confirm these details before fulfillment.
Manufacturer: PES Supply
Vendor: Qudra
Source: Shopify live catalog 2026-09-09; product 7556908220550; variant 43548634906758
Tags: 395W, size:300-399w-panels, Solar Equipment, zero-price-fix</p>

<p>Unknown #6 THWN-2 50' Green
Brand: PES Supply

Category: Solar Equipment

Price: $99.99

Purchase Unknown #6 THWN-2 50' Green from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support.
Manufacturer: PES Supply
Model: THWN-2
Vendor: Unknown
Source: Shopify live catalog 2026-09-09; product 7560888352902; variant 43707132739718
Tags: Solar Equipment, zero-price-fix</p>

<p>Qudra 400WThis PES Supply product is supplied by PES Supply for commercial, industrial, residential energy, or electrical applications as applicable. Confirm final configuration and compatibility before ordering.

•
Manufacturer: PES Supply
•
Model: 400W
Ordering and fulfillmentPrice, stock, freight, lead time, warranty eligibility, and delivery requirements can vary by configuration and destination. PES Supply will confirm these details before fulfillment.
Manufacturer: PES Supply
Vendor: Qudra
Source: Shopify live catalog 2026-09-09; product 7556908253318; variant 43548634939526
Tags: 400W, size:400-459w-panels, Solar Equipment, zero-price-fix</p>

<p>Type Monocrystalline Model No. YH240W-36M Product Warranty 12 Years Power Tolerance 0 ~ +3 % Maximum Power (Pmax) 240 Wp Voltage at Maximum Power (Vmpp) 42.05 V Current at Maximum Power (Impp) 5.71 A Open Circuit Voltage (Voc) 49.76 V Short Circuit Current (Isc) 6.05 A Panel Efficiency 20.2 % Operating Temperature Range -40 - 85 °C Temperature Coefficient of Pmax -0.4 %/°C Temperature Coefficient of Voc -0.29 %/°C Temperature Coefficient of Isc 0.048 %/°C Maximum System Voltage 1500 V Series Fuse Rating 15 A Panel Dimension (H/W/D) 1300x880x30 mm Weight 13.9 kg Cell Size 210×70 mm Cell Number 48 Glass Type Tempered Glass Thickness 3.2 mm Frame Type Anodized Aluminium Junction Box Protection Class IP 67 Connector Type MC4 Cable Crossection 4 mm2 Cable Length 900 mm Download Manufacturer's PDF Datasheet
Power Range: 230 ~ 240 Wp
Panel Efficiency: 19.36 ~ 20.2 %
Weight: 13.9 kg
Seller Name: Zhejiang Isola New Energy Co., Ltd.
Country: China
Manufacturer: PES Global
MPN: YH240W-36M
Vendor: Isola New Energy
Source: Shopify live catalog 2026-09-09; product 7556652007558; variant 43544845516934
Tags: Status:active</p>

<p>UKE Solar UKE655M12-66H
Brand: PES Global

Category: Solar Panels

Price: $114.36

Product Specifications

•
Cell Type: Monocrystalline

Purchase UKE Solar UKE655M12-66H from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: UKE655M12-66H
Vendor: UKE Solar
Source: Shopify live catalog 2026-09-09; product 7556908482694; variant 43548638249094
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>UKE Solar UKE660M12-66H
Brand: PES Global

Category: Solar Panels

Price: $115.24

Product Specifications

•
Cell Type: Monocrystalline

Purchase UKE Solar UKE660M12-66H from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: UKE660M12-66H
Vendor: UKE Solar
Source: Shopify live catalog 2026-09-09; product 7556908548230; variant 43548641460358
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, Solar, Solar Panels</p>

<p>Wining Energy HN-M8/72GF 525W
Brand: PES Global

Category: Solar Panels

Product Specifications

•
Wattage: 525
•
Cell Type: Monocrystalline

Purchase Wining Energy HN-M8/72GF 525W from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: HN-M8/72GF-525W
Model: M8
Vendor: Wining Energy
Source: Shopify live catalog 2026-09-09; product 7556908580998; variant 43548641493126
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, size:460-549w-panels, Solar, Solar Panels</p>

<p>Wining Energy HN-M8/72GF 530W
Brand: PES Global

Category: Solar Panels

Product Specifications

•
Wattage: 530
•
Cell Type: Monocrystalline

Purchase Wining Energy HN-M8/72GF 530W from Portlandia Electric Supply, your authorized dealer. We offer competitive pricing, fast shipping, and expert support. Ideal for residential, commercial, and off-grid solar installations. Contact us for bulk pricing and project quotes.
Manufacturer: PES Global
MPN: HN-M8/72GF-530W
Model: HN-M8
Vendor: Wining Energy
Source: Shopify live catalog 2026-09-09; product 7556908613766; variant 43548641525894
Tags: Monocrystalline, PES Global, Photovoltaic, PV, Renewable Energy, size:460-549w-panels, Solar, Solar Panels</p>