Portable generator

Portable generator

GE 3900 Open · Petrol

Robust open-frame portable petrol generator with GK 225, 3.3 kVA / 3.1 kW, 1-phase, 230 V.

LTP
3.3 kVA
PRP
3 kVA
Voltage
1-phase
Fuel
Petrol
GE 39003.3 kVA / 3.3 kW (LTP) • 1-phase • Petrol
GK petrol engine
max. 3.3 kVA
1-phase
CE-compliant
Recoil start

Classification

Applications of the portable generator

This model is suitable for temporary power supply on construction sites, during service work, at events and for mobile applications. Power, fuel and voltage are summarized for technical selection.

Power & voltage3 kVA (PRP) / 3.3 kVA (LTP) for 230 V 1-phase output.
Engine & fuelGK 225 with petrol operation, air-cooled.
Tank & handlingTank 15 lt.; runtime at 50% PRP 9 h; dry weight 45 kg; protection degree IP 23; dimensions 920 x 590 x 510 mm.

Technical data

Technical data at a glance

GE 3900

Features

  • Engine shut down for low oil level
  • Electronic voltage regulation “AVR”
  • 2x230V 16A 2P + T Schuko sockets
  • Thermal overload protection
  • 12 Vdc battery charger
  • Protective frame
  • Manual towing trolley
  • Silenced
  • Portable
  • Compliant with EC / EU directives
Power kVA 3 kVA (PRP)3.3 kVA (LTP)
Power kW 3 kW (PRP)3.3 kW (LTP)
Voltage (1-phase) 230 V
Cooling system Air-cooled
Fuel Petrol

Engine and generator data

EngineGK 225
CoolingAir-cooled
Cylinders1
Displacement223 cm³ (0.223 l)
Speed governor/
Oil sump capacity0.55 lt.
Fuel consumption 110%/
Fuel consumption 100% PRP/
Fuel consumption 75% PRP/
Fuel consumption 50% PRP/
Generator data
Main featuresSYNCHRONOUSOUS, SINGLE-PHASE, SELF-EXCITED, SELF-REGULATED
AVR model/
Voltage regulation precision/

General data

Voltage230 V
Phase1-phase
Protection degreeIP 23
Tank capacity15 lt.
Runtime at 50% PRP9 h
Runtime at 100% PRP6,5 h
Starter battery/
Dimensions (L x W x H)920 x 590 x 510 mm
Dry weight of machine45 kg
Sound power level Lwa (pressure LpA) *96 dB(A) (71 dB(A) @ 7 m)

* Indoor operation in accordance with Directive 2000/14/EC.

Control panel

  • Manual recoil
  • Engine switch ON- OFF
  • Choke
  • Digital multifunction meter: Voltmeter - Frequencymeter - Hoursmeter
  • Circuit breaker for 230V/16A sockets :1 x 13A
  • Output sockets 2x 230V 16A 2P+T Schuko
  • Earth terminal (PE)
  • 12 Vdc output (battery charger)
  • Thermal circuit breaker for 12Vdc output

Definitions:

Ambient conditions for power ratings: Temperature 25°C, altitude 1000 m above sea level, relative humidity 30%.

Standby power (LTP): Emergency power. Maximum available power for operation with variable loads, limited to 500 hours per year. Overload is not permitted.

Prime Power (PRP): Prime power with variable loads. Maximum available power for operation with variable loads for an unlimited number of hours per year. The average power during a 24-hour period must not exceed 70% of the stated value.

Continuous power (COP): Continuous power with constant load. Maximum available power for operation with constant load for an unlimited number of hours per year.

Note: The data is taken from the original technical datasheet. Displayed values are nominal values, may change without prior notice and may vary by up to ±5%.

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Verified technical answer

GE 3900 at a glance

GE 3900 is a single-phase benzin portable generator with 3 kVA / 3 kW PRP and 3.3 kVA / 3.3 kW LTP. The values below are taken from the assigned, field-audited manufacturer datasheet.

PRP output3 kVA / 3 kW
LTP output3.3 kVA / 3.3 kW
Phase / voltage1-phase / 230 V
FuelBenzin
EngineGK 225
Tank / runtime15 lt.

How should the output be interpreted?

PRP and LTP describe different rated operating conditions. The connected loads, starting currents and operating duration still need to be checked.

What confirms these values?

The visible values and structured data use the same field-audited manufacturer datasheet.

Technical data reviewed on 20 August 2026 by GGG German Generator GmbH – Technical Project Consulting.Open verified datasheet