Renogy 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch

The Renogy 3000W 12V Pure Sine Wave Inverter converts 12V DC battery power into 120V AC power at 3000W continuous output and a 6000W surge rating, with a built-in UPS transfer switch that keeps connected devices running without interruption when switching between battery and shore power. Built-in Bluetooth enables real-time monitoring and control through the DC Home app. This listing covers the 3000W model only.

Uninterrupted Power When It Counts

The built-in UPS transfer switch automatically transitions between shore power and battery power, so appliances and electronics stay on during the changeover rather than cycling off and back on. For an RV connected to a campground pedestal, a van running a workstation, or a semi-truck cab keeping a CPAP machine running overnight, that seamless handoff removes the risk of a hard reset on sensitive equipment mid-use.

Clean Output for Sensitive Electronics

Pure sine wave output with total harmonic distortion at or below 3% matches the waveform quality of utility grid power. Inductive loads such as refrigerators, microwave ovens, and motors run cooler and quieter on a pure sine wave than on a modified sine wave, and sensitive electronics including audio equipment and medical devices operate without the interference that a modified sine wave can introduce. Inverter efficiency exceeds 92%, and full-load efficiency exceeds 87%, meaning less battery capacity is wasted as heat during conversion.

Remote Monitoring and Thermal Management

Built-in Bluetooth connects the inverter to the DC Home app, giving real-time visibility into output power, voltage, and current from a phone without opening the battery compartment or crawling under a build. The included wired remote control (16.40 ft cable) provides a physical on/off and mode switch at the dash or panel. Thermally controlled cooling fans run on demand rather than continuously, keeping noise below 55 dB and reducing wear during light loads. The IP20 enclosure rating suits protected indoor installations such as van builds, RV bays, and enclosed trailer compartments.

Features

• 3000W continuous / 6000W surge: handles high-draw appliances and the startup spike of inductive loads
• UPS transfer switch (30A rated): seamless automatic switchover between shore power and battery power
• Pure sine wave output, THD ≤3%: grid-quality waveform for sensitive electronics and inductive loads
• Built-in Bluetooth: real-time monitoring and control via the DC Home app
• Included wired remote: 16.40 ft cable with front-panel controller (4.3 × 2.6 × 1.3 in)
• Multi-layer protection: over-voltage, over-current, and short-circuit protection with automatic shutdown thresholds

Specifications

Who This Is For and Isn't

The Renogy 3000W 12V Pure Sine Wave Inverter suits overlanders, van builders, RV owners, and semi-truck operators running a 12V house battery bank who need grid-quality AC power for appliances up to 3000W continuous draw, and who want automatic UPS-style backup switching between shore power and battery power. It is well-matched to protected indoor installations in enclosed bays, cabinets, and cargo areas where an IP20 enclosure is adequate.

This inverter requires a 12V DC battery system; it is not compatible with 24V or 48V battery banks. The IP20 enclosure rating means it is not suitable for exposed outdoor mounting where it may contact rain, spray, or condensation. The 30A transfer switch rating sets the ceiling for shore-power pass-through; loads requiring higher shore-power amperage will need a different solution. Battery cables, fuses, and mounting hardware are not included.

Common Questions

What does the UPS transfer switch do on this inverter?

The Renogy 3000W inverter's built-in UPS transfer switch automatically detects when shore power is available and routes it to connected devices; when shore power is lost or disconnected, the inverter switches to battery power without cycling the load off. This keeps sensitive electronics and appliances running continuously rather than experiencing a hard power interruption during the transition.

Can this inverter run both on-grid and off-grid?

Yes. The Renogy 3000W 12V Pure Sine Wave Inverter operates in both on-grid and off-grid configurations. When connected to shore power, it can pass that power through to loads via the transfer switch. When no shore power is present, it draws from the 12V battery bank and converts DC to 120V AC for connected devices.

What appliances can this inverter power?

The Renogy 3000W inverter can power any load with a continuous draw at or below 3000W, such as a refrigerator or microwave. Inductive appliances like air conditioners, motors, and compressors draw a higher startup current than their running wattage; the 6000W surge rating (at 2 seconds) is designed to handle those startup spikes. Running multiple high-draw appliances simultaneously should not exceed the 3000W continuous limit.

How does Bluetooth monitoring work on this inverter?

The Renogy 3000W inverter has built-in Bluetooth that pairs with the DC Home app on a smartphone. Through the app, users can view real-time data including output power, voltage, and current levels, and adjust inverter settings remotely. The included wired remote control (16.40 ft cable) provides a physical alternative for on/off switching and basic control without a phone.

Why might appliances trip or shut off when connected to this inverter?

The Renogy 3000W inverter includes over-voltage, over-current, and short-circuit protection that triggers an automatic shutdown when thresholds are exceeded. Common causes include running multiple appliances whose combined wattage exceeds 3000W, inductive loads drawing startup current the system cannot sustain, a short circuit in a connected appliance, or loose battery wiring causing voltage instability. Checking total load wattage and inspecting connections resolves most trips.