Hahn & Sohn H IG 5500 G ATS inverter generator
Professional 5.5 kW inverter generator with ATS, designed for home and business backup power as well as mobile use. It offers a pure sine wave, the option to run on gasoline or LPG, electric start, remote control, and quiet operation in a soundproof enclosure.
The Hahn & Sohn H IG 5500 G ATS is a powerful, quiet, and technologically advanced inverter generator designed for demanding users who require stable power supply for both sensitive electronics and high-performance appliances.
- Thanks to inverter technology, it generates perfectly stable voltage with a pure sine wave output (ISO8528 G2), enabling safe operation of computers, servers, boilers, heat pumps, electronics, and workshop equipment.

The generator can operate on:
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Gasoline (Unleaded 95)
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LPG (propane-butane)
This provides operational flexibility, lower costs, and extended runtime in emergency situations.
The ATS (Automatic Transfer Switch ready) version allows automatic start-up during a grid power outage (when connected to an external ATS module), making it an ideal solution for backup power supply in family homes, businesses, or technical installations.
The robust soundproof enclosure, integrated wheels, and telescopic handle ensure easy handling despite its 46 kg weight.
Key Features
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Maximum output: 5.5 kW (gasoline) / 5.0 kW (LPG)
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Rated output: 5.0 kW (gasoline) / 4.4 kW (LPG)
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Inverter technology – pure sine wave
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ATS ready – automatic backup operation option
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Operation on gasoline or LPG (Dual Fuel)
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Electric start + remote control
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Digital display (CO indicator, oil, ECO mode, operating status)
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ECO mode for fuel savings
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Overload and low oil level protection
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Integrated CO sensor
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Soundproof enclosure (silent inverter)
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Transport wheels and telescopic handle
Additional parameters
| Category: | Inverter Generators |
|---|---|
| Warranty: | 2 years |
| Weight: | 46 kg |
| EAN: | 8594210231870 |
| Generator:: | |
| Type: | 4-stroke, single cylinder, OHV, air-cooled |
| Nominal frequency: | 50 Hz |
| Nominal voltage: | 230 V |
| Power factor: | 1,0 |
| AC output quality: | ISO8528 G2 |
| DC output: | 12 V / 8,3 A |
| Rated power (gasoline): | 5,0 kW |
| Max. power (gasoline): | 5,5 kW |
| Nominal power (LPG): | 4,4 kW |
| Max. power (LPG): | 5,0 kW |
| Rotation speed: | 4600 rpm |
| Maximum altitude: | 1000 m |
| Max. ambient temperature: | 40 °C |
| Engine:: | |
| Engine model: | R225D-Vi2 |
| Volume: | 224 cm³ |
| Fuel: | Unleaded gasoline |
| Tank capacity: | 12,5 l |
| Oil volume: | 0,55 l |
| Recommended oil: | SAE 10W-30, 15W-40 (API SE or higher) |
| Spark plug: | F6RTC |
| Starting: | Electric + manual (recoil) |
| Dimensions:: | |
| Dimensions (L × W × H): | 592 × 405 × 560 mm |
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