by ** AIMS Power 2000 Watt Pure Sine Inverter with Automatic Transfer Switch
Pure sine output, 2000W continuous / 4000W surge 12V DC input to 120V AC output, ETL listed UL458 Builtin 25A automatic transfer switch (<20ms) AC hardwire terminal block and AC passthru Remote switch available (optional) 86–90% efficiency, 25A max transfer/bypass
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Compatibility: Designed for use in RVs; compatible electrically with Sprinter, Transit, ProMaster builds
The AIMS Power 2000 Watt Pure Sine Inverter with Automatic Transfer Switch is a robust choice for campervan and RV conversions, especially for those prioritizing safety, convenience, and reliable power for sensitive electronics and appliances.
What Makes It Ideal for Campervan Conversions
- Automatic Transfer Switch: Seamlessly switches between shore (grid) power and battery power without manual intervention, minimizing downtime and complexity[1][2].
- Pure Sine Output: Delivers clean, utility-quality power that’s safe for sensitive devices like laptops, CPAPs, and modern appliances[3].
- ETL Listed, UL 458 Compliant: Meets safety standards required for use in RVs, marine, and mobile environments, supporting insurance and regulatory compliance[1][2].
Key Features and Benefits
- 2000W Continuous / 4000W Surge: Powers mid-size devices such as microwaves, fridges, heaters, computers, and power tools—ample for most campervan setups[1][2].
- 12V Battery Compatibility: Easily integrates with standard van battery banks[1][2][3].
- Fast Transfer (<20ms): Minimizes interruption during power source changes—critical for devices that require constant power[1].
- Multiple Protections: Over/under-voltage, over-temperature, and short-circuit protections enhance system safety[1][3].
- Marine-Grade Conformal Coating: Added durability against moisture and corrosion in varied environments[1][3].
- User-Friendly: No complex programming; optional remote switch available for convenient on/off control[1].
- 2-Year Warranty: Offers peace of mind for extended travel[1].
What to Look For When Buying
- Transfer Switch Rating: Ensure the transfer bypass amperage (25A) matches your expected max AC load; exceeding voids the warranty and risks inverter failure[1][3].
- True Pure Sine Output: Only pure sine is safe for all electronics—avoid modified sine wave for modern appliances[3].
- Continuous vs. Surge Rating: Start-up loads (like compressor fridges) may quickly exceed continuous or surge specs; evaluate your highest loads realistically[1][3].
- Installation Fit: Check physical dimensions (21.5″ x 9.5″ x 3.5″; 14.4 lbs) and wiring accessibility for your available space[1][3].
- Compatibility: Must match your battery bank (12V system) and expected AC loads.
Common Mistakes to Avoid
- Overloading the Inverter: Drawing more than 2000W continuous or exceeding 25A through the transfer switch risks failure and voids warranty[1][3].
- Improper Wiring: Undersized DC cabling causes voltage drop and overheating; always use manufacturer-recommended cable sizes (2 AWG or larger for 2000W models)[3].
- Ignoring Ventilation: Poor airflow can cause overheating and shutdown. Allow ample clearance for cooling fans[3].
- Not Accounting for Surge Loads: Appliances with motors can momentarily draw much higher power—plan accordingly[1][3].
Best Use Cases
- Weekend Warriors: Ideal for weekend and short-term use, powering common appliances and devices with ease.
- Full-Time Living: Works well for full-timers if total electrical demand does not routinely exceed 2000W; may require load management for simultaneous high-power devices.
Budget Considerations and Value Analysis
- Price vs. Features: At about $469 retail, it is competitively priced among ETL-listed, pure sine wave inverters with integrated transfer switches[1].
- Long-Term Savings: Quality and reliability pay off by protecting valuable electronics and minimizing replacement/repair costs.
- Optional Accessories: Budget for optional remote switch or upgraded cabling as needed[1].
This inverter offers a strong blend of safety, convenience, and value for both short-term and full-time van dwellers, provided that installation and usage guidelines are carefully followed.
A 2000W Inverter with Transfer Switch is a core power component for campervan and RV setups, enabling you to run household appliances and seamlessly switch between shore and battery power. Top comparable inverters include:
Below is a pros/cons and price comparison:
| Product | Transfer Switch | Power Output (Cont./Surge) | Price Range (USD) | Key Pros | Key Cons |
|------------------------------|----------------|----------------------------|-------------------|----------------------------------------|---------------------------------|
| 2000W Inverter w/ Transfer | Yes | 2000W / 4000W | $250–$400 | Automatic source switch, versatile | Bulkier, extra wiring needed |
| Renogy 2000W Pure Sine | No (options) | 2000W / 4000W | $230–$320 | Reliable, compact, common replacement | Manual changeover or extra cost |
| Krieger 2000W | No | 2000W / 4000W | $220–$280 | Budget, dual AC/USB, decent support | Basic feature set, no transfer |
| AIMS PWRI2000W | No | 2000W / 4000W | $270–$330 | Remote switch, safety features | No built-in charger/transfer |
| Victron Phoenix Smart 1600–2k| No | 1600–2000W / 4000W | $400–$600 | Top efficiency, Bluetooth, compact | Premium price, no transfer STD |
| Xantrex PROwatt SW 2000 | No | 2000W / 3000W | $350–$420 | Lightweight, reliable | Often lacks transfer, mid-priced|
When to Choose Each Option:
- Choose a 2000W Inverter w/ Transfer Switch: If you need seamless, automated transfer between shore power and inverter (e.g., campsites with hookups), and want plug-and-play convenience for multi-source setups[1].
- Choose alternatives if: You have limited space, can manage power sources manually, or prioritize budget over seamless automation.
Performance for Van Life:
- Inverter with Transfer Switch: Best for hassle-free connectivity in mixed power environments; minimizes manual switching risk and downtime.
- Pure Sine Inverters (Renogy, Victron, etc.): Offer high-quality AC waveform for sensitive electronics, but manual or add-on transfer required. Victron stands out for monitoring and configurability via app, benefiting tech-heavy van builds[2][3].
- Budget Models (Krieger, AIMS): Sufficient for basic van appliances (fridges, laptops, low-wattage cookers); no frills but robust for typical van lifers.
Price Differences:
- Transfer switch models: typically $250–$400
- Pure sine alternatives: $220–$600, depending on brand and features[1][2].
Summary: For fully automated, hassle-free shore/inverter transitions, a 2000W inverter with a transfer switch is optimal. For those who prioritize compactness, budget, or feature-rich monitoring (like Victron's Bluetooth integration), alternatives may be preferred[2][3].
To install a 2000W inverter with transfer switch in a campervan, follow these key steps for a safe and reliable setup:
Step-by-Step Overview
- Select a cool, ventilated mounting location close to your battery (but not in the same compartment) to minimize voltage drop and overheating[1][3].
- Use correctly sized heavy-gauge cables to connect the inverter’s positive and negative terminals directly to your battery or busbar, with a fuse installed near the battery on the positive line[1][3].
- Install a kill switch/isolator for emergency shut-off and maintenance[1][3].
- Wire the transfer switch to isolate the inverter from shore power—connect the inverter, transfer switch, and RV distribution panel per the manufacturer’s diagram[2]. Automatic transfer switches are preferred for convenience[2].
- Properly ground the inverter as specified by the manufacturer, typically bonding to the van chassis[1].
- Connect AC outputs from the inverter to the consumer unit (with RCD circuit protection), then run three-core cable to plug sockets[1].
- Seal any penetrations in the van wall with silicone for moisture protection[3].
Common Installation Mistakes
- Using undersized wires (causing overheating and voltage drop)[1][2].
- Poor ventilation or proximity to batteries (overheats inverter)[1][3].
- Incorrect wiring of transfer switch risks damage to the inverter[2].
- Skipping fuse or isolator installation[1][3].
- Not following grounding/bonding protocols (unsafe AC)[1].
Tools and Materials Needed
- Heavy-gauge DC wire (per inverter specs, often ≥35mm²)
- 10 AWG three-core AC wire[2][3]
- Fuse for inverter (proper amperage)[1][3]
- Isolator/kill switch[1][3]
- Transfer switch (auto/manual)[2]
- Consumer unit with RCD/MCB[1]
- Hand tools: screwdriver, wire cutters/strippers, drill, voltmeter
- Electrical tape
- Silicone sealant[3]
Estimated Installation Time
- A DIY install: 4–8 hours for most van conversions
- Professional: 2–4 hours, subject to van layout and complexity
Tips: DIY vs Professional
- DIY is reasonable if you have solid electrical skills, can follow wiring diagrams, and strictly observe safety measures. Use a professional if connecting to the main RV panel, or if unsure about transfer switch or AC wiring protocols[2].
- Always consult the inverter’s manual for best practices specific to your model[1][2].
Safety Considerations
- Disconnect all power sources before starting.
- Always install a fuse for fault protection[1][3].
- Wear gloves and eye protection.
- Test all connections with a voltmeter before closing panels.
Pro Tips from Experienced Van Builders
- Keep DC wire runs short and thick to minimize losses[1][3].
- Label all wires and connections for future servicing.
- Use silicone sealant on all wall cable entries for weatherproofing[3].
- Consider remote inverter switches for easy access[3].
- Triple-check transfer switch wiring: improper setup is a common source of inverter failures[2].
- Integrate AC outlets after RCD protection for user safety[1].
Following these best practices ensures efficient, safe power delivery and minimizes installation risks.