H4500i-1 open-frame portable generator with 3.5kW max power and pure sine wave output for global export

The H4500i-1 is an open-frame portable pure sine-wave inverter gasoline generator developed for global export markets including Southeast Asia, Middle East, Africa, Latin America and Australia.

The H4500i-1 features an exposed metal rack structure without sound insulation shell, significantly reducing purchase cost while retaining high-grade four-stage AC-DC-AC inverter core technology with THD ≤3% clean power output. It safely powers refrigerators, air conditioners, power tools, laptops, and surveillance cameras.

With rated power of 3.5kW and peak maximum power of 3.8kW, the 7.5L fuel tank supports 5 hours continuous runtime at 50% load. Standard 230V 50Hz output matches most national household electrical standards without extra transformers.

The unit generates stable premium electricity through four-step conversion process:

1. Power Generation: Four-stroke gasoline engine drives alternator coil to produce fluctuating high-frequency three-phase alternating current
2. Rectification: High-efficiency rectifier converts unstable AC into smooth DC voltage to eliminate interference caused by engine speed variation
3. Inversion: PWM pulse width modulation chip converts DC into 20kHz high-frequency modulated sine wave for real-time precise voltage regulation
4. Filtering: Multi-stage low-pass filter removes high-frequency clutter and outputs standard 50Hz pure sine power identical to municipal grid

THD ≤3%, far superior to ordinary open generators with THD over 20%, preventing burnout of microchip-based precision electrical appliances.

• Fuel Tank ON/OFF Switch: Turn to ON during operation; switch to OFF after shutdown to avoid gasoline volatilization and leakage
• 3-in-1 Integrated Fuel Choke Valve: Single knob controls fuel supply and air mixing ratio to simplify cold startup operation

Independent heavy-duty recoil pull starter with purely mechanical structure without battery components. No dead battery failure risk for long-term stock or humid tropical storage environments.

• Thickened anti-rust tubular metal frame with four-corner shock absorption rubber foot pads to reduce operation vibration
• Fully exposed engine and inverter components, no cabinet disassembly required for maintenance
• No closed sound insulation shell, reducing overall weight and procurement cost
• Full surrounding natural cross air flow for excellent heat dissipation during continuous heavy-load work

• AC Output Sockets: Customizable EU, South African, Australian, Brazilian, US, GFCI and dedicated parallel jacks with protective covers
• USB Charging Options: Single 5V1A / Dual 5V1A+5V2A / QC3.0 Fast Charge Dual USB
• 12V DC Auxiliary Output: Multiple terminals for DC lighting and small outdoor equipment
• Parallel Warning: Only two identical H4500i-1 units can be connected in parallel

Standard 3-in-1 digital readout displays real-time voltage, frequency and accumulated working hours. Three independent warning indicator lights for low engine oil, overload protection, and running status. Optional upgraded 6-in-1 comprehensive monitor available.

When overload, low oil or overheating triggers inverter power cut, press reset button after troubleshooting to clear fault signal and restart inverter without shutting down the whole engine.

Auto load detection system reduces engine rotation speed when no electrical load is connected, cutting fuel consumption by approximately 10%. Instantly raises RPM when appliances are switched on.

Two identical H4500i-1 units can be paralleled to double power capacity. Cross-brand parallel connection is strictly prohibited for safety reasons.

• Low Engine Oil Automatic Shutdown: Automatically cuts ignition circuit when lubricant oil is insufficient
• Overload & Short-Circuit Protection: Built-in non-fuse AC breaker instantaneously disconnects output when load exceeds rated power
• Overheat Prevention: Full open natural air circulation avoids thermal damage during continuous heavy-load operation

All protection mechanisms comply with international electrical safety standards for household and construction power equipment.

• Ultra Low Procurement Cost: Without expensive sound insulation cabinet, purchase price is far lower than silent enclosed generators of equivalent power
• Zero-Barrier Full Maintenance: Engine and inverter parts are fully exposed; maintenance doesn't require cabinet disassembly
• High-Grade Inverter Core: THD ≤3% premium power quality identical to silent cabinet units
• Large Fuel Tank: 7.5L tank delivers stable 5-hour half-load runtime
• Universal Output Standard: 230V 50Hz directly compatible with household appliances in target markets
• Competitive Container Loading: High density loading balances machine size and sea freight costs
• Simple Mechanical Structure: Pull recoil start eliminates battery breakdown risks; widely available spare parts
• Diversified Expandable Interfaces: Parallel port, multi-spec USB charging and 12V DC output available

• Construction site temporary power tool supply
• Farm irrigation & agricultural equipment power supply
• Remote off-grid village daily electricity
• Warehouse & factory standby emergency power
• Budget household power outage backup
• Outdoor road maintenance engineering power
• Small shops without noise restriction requirements

• Complete English technical specification sheets, operation manuals and CE compliance documents
• Customized AC sockets, USB modules and outer packing labels for OEM & ODM bulk orders
• Universal spare parts supply plan with worldwide availability
• Professional technical after-sales guidance via email & video conference
• Stable mass production capacity for on-time delivery of full container orders