Convert 12V DC to 120V AC with 2000W continuous power. Pure sine wave output with automatic transfer switch, USB port, and comprehensive protection features.
The PowerMax PMX-2000W Pure Sine Wave Power Inverter delivers reliable power conversion for RVs, boats, work vehicles, and off-grid applications. Converting 12V DC battery power to clean 120V AC electricity, this inverter provides the same smooth, stable power as grid electricity - essential for safely operating sensitive electronics, computers, medical devices, and modern appliances.
With 2000 watts of continuous output and 4000 watts peak surge capacity, the PMX-2000W handles high-starting loads from motors, compressors, and kitchen appliances with ease. The built-in automatic transfer switch seamlessly transitions between shore power and battery power, preventing interruptions when grid power fails. Advanced digital control technology ensures reliable performance with comprehensive protection systems including low/high voltage cutoffs, overload protection, short circuit protection, and automatic thermal management.
Delivers reliable 2000W continuous output with 4000W surge capacity for starting motors and high-draw appliances
Seamlessly switches between shore power and battery power - when AC input fails, automatically transfers to inverter mode
Clean power identical to grid electricity - safely operates sensitive electronics, computers, medical equipment, and variable-speed devices
Multiple safety features including low/high voltage cutoff, overload protection, short circuit protection, and thermal shutdown
The PMX-2000W-PSPT features sophisticated 110V AC pass-through technology with an integrated automatic transfer switch. When connected to shore power or a generator, the inverter passes that AC power directly to your outlets. When shore power is disconnected or fails, the unit automatically switches to inverter mode within milliseconds - drawing from your 12V battery bank to maintain uninterrupted power to your devices. This intelligent switching system eliminates the need for manual changeover and protects your electronics from power interruptions. Perfect for RV applications where you alternate between campground hookups and boondocking, or for backup power systems that need seamless transitions during utility outages. The PSPT (Pass Through) designation indicates this model includes the built-in transfer switch capability.
RVs & Travel Trailers: Power microwaves, coffee makers, TVs, laptops, and all 120V appliances when dry camping or boondocking. Automatic transfer between shore power and battery power. Marine/Boats: Run navigation equipment, refrigeration, entertainment systems, and galley appliances while at anchor or away from marina power. Work Trucks & Service Vans: Operate power tools, drills, saws, compressors, and equipment at remote job sites. Perfect for contractors and mobile service businesses. Off-Grid Cabins: Power household appliances, computers, lights, small well pumps, and electronics with solar panels or generator charging. Emergency Backup: Maintain critical systems during power outages - medical equipment, refrigeration, communications, and lighting. Food Trucks & Mobile Vendors: Power blenders, food processors, espresso machines, and point-of-sale systems at outdoor events and markets.
Professional Installation Recommended • Adequate Ventilation Required: Install in well-ventilated area with clear airflow around unit. Do not block front air vents or rear exhaust ports. • Proper Wire Sizing Critical: Use appropriately sized DC cables (minimum 2 AWG recommended for 2000W). Undersized wires cause voltage drop and overheating. • Fuse Protection Mandatory: Install appropriate fuses or circuit breakers on DC positive line near battery (8 x 30A fuses included with unit). • Grounding Essential: Unit must be properly grounded to vehicle chassis or earth ground for safety. Use ground terminal on inverter. • Keep Connections Tight: Loose DC connections cause arcing, overheating, and potential fire hazards. Check all terminals regularly. • Not for Marine Use: This inverter is NOT rated for marine applications due to moisture and corrosion concerns. • Battery Capacity: Ensure adequate battery capacity - 2000W draw requires approximately 170+ amps at 12V. Use deep-cycle batteries rated for high discharge.
In The Box: • PMX-2000W-PSPT Pure Sine Wave Inverter • 8 x 30A DC Input Fuses (Installed) • 20A AC Input Fuse (Installed) • Owner's Manual with Wiring Diagrams • Warranty Documentation NOT Included (Available Separately): • 20ft Remote Control with On/Off Switch and LED (Model PMX-001) • DC Input Cables (Must be purchased separately - use appropriate gauge for 2000W) • Battery Connection Hardware • Mounting Hardware/Brackets
Compare the PMX-2000W with other models in the PowerMax Pure Sine Wave inverter lineup to find the right power solution for your needs.
Calculate approximate runtime and battery requirements for common appliances and devices. Runtime depends on battery capacity, age, temperature, and discharge rate.
Important Notes: Runtime calculations assume 50% battery discharge (100Ah usable from 200Ah battery) and 85% inverter efficiency. Actual runtime varies based on battery type, age, temperature, and load. Starting surge not included in calculations. For extended runtime with high-draw appliances, consider multiple batteries or generator charging.
Optimal Placement: • Install in cool, dry location with good air circulation on all sides • Mount horizontally with fan axis horizontal for proper cooling • Keep minimum 6" clearance around all sides for airflow • Avoid direct sunlight and heat sources • Ideal operating temperature: 50-80°F Wiring Best Practices: • Use minimum 2 AWG copper cable for DC connections (1 AWG recommended for runs over 6 feet) • Keep DC cables as short as possible to minimize voltage drop • Use insulated ring terminals with proper crimping tools • Install fuse or circuit breaker within 18" of battery positive terminal • Connect negative terminal to vehicle chassis ground or battery negative • Use wire loom or conduit to protect cables from chafing Battery Configuration: • Use deep-cycle batteries rated for high discharge (AGM or lithium preferred) • Minimum 200Ah capacity recommended for reliable operation • Multiple batteries can be paralleled for increased capacity • Keep battery bank as close to inverter as practical • Ensure batteries are fully charged before first use AC Wiring (for Pass Through): • Hire licensed electrician for hardwired AC connections • Use appropriate wire gauge for AC input (12 AWG minimum) • Install dedicated 20A circuit breaker on AC input line • Follow all local electrical codes and RV standards Testing Before Use: • Verify all connections are tight and properly insulated • Check polarity with multimeter (positive to positive, negative to negative) • Power on with no load first - green LED should illuminate • Test with small load before connecting high-draw appliances • Verify automatic transfer switch function (if using AC pass through)
Product Documentation: Download PMX Series Owner's Manual (PDF - 1000W/2000W/3000W Models) Download PMX-2000W Specification Sheet (PDF) Download PMX Series Information Sheet (PDF) Company Website: www.powermaxconverters.com PowerMax Converters 5107 Lena Road, Suite 108 Bradenton, FL 34211
A: For reliable operation at full 2000W load, the inverter draws approximately 170+ amps from your 12V battery (2000W ÷ 12V ÷ 0.85 efficiency = ~196A). For practical everyday use, we recommend minimum 200-400Ah of deep-cycle battery capacity (AGM or lithium). This provides 1-2 hours of full-power runtime or 4-8 hours at typical loads (500-1000W). Remember that lead-acid batteries should not be discharged below 50% capacity, so a "200Ah" battery only provides 100Ah usable. Lithium batteries can typically be discharged to 80-90%, providing more usable capacity. For extended boondocking with moderate appliance use (microwave, TV, coffee maker), consider 400-600Ah of battery capacity paired with solar panels.
A: It depends on their combined wattage. A typical 700W microwave draws about 1000W actual power (microwaves are inefficient), and a coffee maker draws 800-1200W. Combined, that's 1800-2200W - which is within the 2000W continuous rating but close to the limit. However, both devices have starting surges that could momentarily exceed the 4000W surge capacity if started simultaneously. Best practice: start the coffee maker first, let it stabilize for 30 seconds, then start the microwave. Or use them one at a time. For simultaneous operation of multiple high-draw appliances, consider upgrading to the PMX-3000W (3000W continuous, 6000W surge).
A: The automatic transfer switch in the PMX-2000W-PSPT (the "PSPT" stands for "Pass Through") provides seamless, hands-free power management. When you're plugged into shore power at a campground or running a generator, the inverter passes that AC power directly through to your outlets - your batteries aren't being used. When shore power is disconnected or fails, the inverter automatically switches to battery power within milliseconds. This means: (1) Devices stay powered without interruption during power transitions, (2) You don't need to manually switch between shore power and inverter, (3) Critical equipment like refrigerators, medical devices, or computers aren't affected by brief power losses, (4) You can leave devices plugged in permanently. The alternative is having separate shore power and inverter circuits that require manual switching or unplugging/replugging devices.
A: Wire sizing is critical for safe, efficient operation. At 2000W output, the inverter draws approximately 170-200 amps from your 12V battery (accounting for 85% efficiency). For safety and minimal voltage drop, use these wire sizes based on cable length: Under 5 feet: 2 AWG copper minimum, 1 AWG recommended; 5-10 feet: 1 AWG copper minimum, 1/0 AWG recommended; 10-15 feet: 1/0 AWG copper minimum, 2/0 AWG recommended. Never use wire smaller than 2 AWG regardless of distance - undersized wires overheat, melt insulation, and create fire hazards. Additionally: (1) Use marine-grade tinned copper wire for best corrosion resistance, (2) Ensure all connections use proper crimped ring terminals (not soldered), (3) Install inline fuse or circuit breaker within 18" of battery positive, (4) Keep cables as short as practical to minimize voltage drop.
A: The PMX-2000W is ideal for typical RV living and moderate power needs - running laptops, TVs, microwaves, coffee makers, power tools, and small kitchen appliances. It's lighter (9 lbs vs 13 lbs), more compact, and requires less battery capacity (200-400Ah vs 400-600Ah). Choose the 2000W if you: won't run air conditioners, don't need to operate multiple high-draw appliances simultaneously, have limited battery capacity, want to save weight and space, or primarily use low-to-moderate power devices. Choose the PMX-3000W if you: plan to run a roof air conditioner, want to operate multiple appliances at once (microwave + coffee maker + TV), have large battery banks (600+ Ah), frequently use power-hungry tools or equipment, or want maximum power headroom for future additions. The 3000W also has 4 AC outlets and 2 USB ports vs 2 outlets and 1 USB on the 2000W.
A: The PMX-2000W-PSPT is designed for both portable and hardwired permanent installation. For permanent RV installation, hire a licensed electrician to: (1) Hardwire the DC connections directly to your battery bank using appropriately sized cables (2 AWG minimum), (2) Connect the AC input terminals to your shore power inlet or RV distribution panel, (3) Wire the AC output to selected outlets in your RV that you want inverter-powered, (4) Install the unit in a well-ventilated location with secure mounting. The automatic transfer switch makes permanent installation ideal - your selected outlets automatically switch between shore power and inverter. For portable use, you can simply connect battery clamps to the DC terminals and plug devices directly into the inverter's outlets. Professional installation is strongly recommended for hardwired setups to ensure code compliance and safe operation.