SolarEdge Single Phase Inverter 3.8kW SE3800H-US000BEU4

The SolarEdge Single Phase Inverter SE3800H-US000BEU4 is a 3.8kW residential string inverter built on SolarEdge's HD-Wave technology, engineered exclusively to work with SolarEdge power optimizers. One of the few single-phase inverters in its class to support both 240V and 208V grid connections, the SE3800H-US serves a wider range of residential and light commercial grid-tie applications while delivering a 99% CEC weighted efficiency rating.

Key specifications

• Rated AC power output: 3,800W (3.8kW) @ 240V | 3,300W @ 208V
• Maximum inverter efficiency / CEC weighted efficiency: 99.2% / 99%
• Maximum DC input power: 5,900W @ 240V | 5,100W @ 208V — maximum input voltage 480 Vdc; nominal DC input voltage 380 Vdc (fixed voltage for longer string design)
• Maximum continuous output current: 16A @ 240V | 16A @ 208V
• AC output voltage: 211–240–264 Vac (240V) | 183–208–229 Vac (208V)
• Communication interfaces: RS485 and Ethernet standard; wireless SolarEdge Home Network, Wi-Fi, and cellular available as optional add-ons
• Safety: Integrated arc fault protection (UL1699B) and automatic rapid shutdown upon AC grid disconnect — NEC 2014–2023 compliant per articles 690.11 and 690.12
• Certifications and compliance: UL1741, UL1741SA (CPUC Rule 21), UL1741SB, CSA, IEEE1547, FCC Part 15 Class B; NEMA 4X enclosure rating
• Dimensions (H × W × D): 17.7 × 14.6 × 6.8 in. (450 × 370 × 174 mm) | Weight: 25.1 lbs. (11.4 kg)
• Operating temperature range: -40°F to 140°F (-40°C to 60°C); full rated power maintained up to 122°F (50°C)
• Warranty: 12–25 years

Where grid-tie efficiency matters most

Every watt lost at the inverter stage is a watt that never reaches the home or the grid. The SE3800H-US achieves 99% CEC weighted efficiency, meaning nearly all power harvested by the array is converted without loss — a figure enabled by SolarEdge's HD-Wave topology, which processes power differently than traditional transformer-based designs. For homeowners sizing a grid-tie solar system against a known energy bill, this level of conversion performance reduces the number of panels needed to hit a production target.

Dual-voltage support for broader site compatibility

The SE3800H-US operates on both 240V and 208V single-phase services — an uncommon capability at this output class. Installers working on sites with 208V panel configurations, such as some older residential services or light commercial feeds, can deploy this inverter without upsizing to a three-phase unit or sourcing a separate SKU. The 16A maximum continuous output current holds steady across both voltage configurations.

Smartphone commissioning with SetApp

The SE3800H-US commissions entirely through the SolarEdge SetApp mobile application via a built-in Wi-Fi access point — no dedicated display panel, laptop, or configuration cable needed. Installers connect directly from a smartphone to complete setup on-site. Once operational, the inverter delivers built-in module-level monitoring through the SolarEdge platform, giving homeowners per-panel production data and installers remote diagnostic access without additional hardware.

Application scenarios

• Residential rooftop systems: Sized for mid-range homes with single-phase grid service, typically supporting arrays of approximately 10–16 panels depending on module wattage.
• 208V service sites: Compatible with residential or light commercial services where 240V is not available — no separate inverter model required.
• Code-compliance-critical projects: Built-in rapid shutdown and arc fault protection satisfy NEC 2014 through 2023 requirements without additional external hardware.
• California Rule 21 installations: UL1741SA certification confirms grid compliance for CPUC Rule 21 requirements with no additional steps.
• Indoor or outdoor mounting: NEMA 4X enclosure rating supports garages, utility rooms, and exterior wall installations; the 25.1 lb. (11.4 kg) form factor simplifies handling in either location.

Advanced features

• Fixed nominal DC input voltage (380 Vdc): Allows longer string runs compared to variable-voltage designs, reducing the number of strings per array and simplifying conduit routing.
• Optional revenue grade metering (ANSI C12.20, 0.5% accuracy): Available on the SExxxxH-US000BEI4 variant for incentive program compliance and utility-grade production reporting.
• Optional consumption metering (1% accuracy): Adds whole-home energy monitoring when current transformers are ordered separately.
• Nighttime power consumption: Under 2.5W standby draw — negligible offset against daytime generation.

System compatibility

The SE3800H-US is designed exclusively for use with SolarEdge power optimizers and is not compatible with third-party optimizers or standard string configurations without optimizers. It supports 1–2 DC input strings via 1-inch conduit (14–6 AWG) and connects to a single-phase 240V or 208V grid service via 1-inch AC output conduit (14–6 AWG). Communication with the SolarEdge monitoring platform occurs via RS485 or Ethernet; optional wireless modules — SolarEdge Home Network, Wi-Fi, or cellular — are available separately. The inverter integrates with the broader SolarEdge Home ecosystem, including battery storage and EV charging where those products are deployed.

Why choose the SolarEdge SE3800H-US?

The SolarEdge SE3800H-US is the practical choice for residential installers who need a compact, high-efficiency string inverter that covers both 240V and 208V service configurations without stocking a second SKU. Its 99% CEC efficiency, built-in NEC 2014–2023 rapid shutdown, and smartphone commissioning via SetApp address the three most common installation friction points — conversion loss, code compliance, and on-site setup time — in a single, lightweight unit backed by a 12–25 year warranty.