Pramac GGW 85 G 400V gas generator

The Pramac GGW 85 G 400V is an industrial-grade gas generator designed for applications requiring a powerful three-phase backup power supply, stable operation under load and state-of-the-art control systems. This model is well suited for commercial buildings, engineering infrastructure, technical facilities, service and production sites where the generator is intended to be a fully-fledged part of the facility’s power system, rather than merely a ‘standby’ emergency source.

The model operates on a 400/230 V mains supply at 50 Hz, has 3 phases and a power factor of 0.8. In LTP standby mode, the generator delivers 85 kVA / 68.0 kW, making it suitable for powering heavier three-phase equipment, engineering systems, ventilation, pump units, technical rooms, service areas and other consumers where a stable power supply is required without compromise. :contentReference[oaicite:16]{index=16}

Unlike the GGW 70 G, this model is specified in the provided specifications specifically for natural gas. It is a good option for stationary facilities with a permanent connection to the gas infrastructure, where the key advantage is long-term operation without refuelling and more predictable performance. At 100% load, natural gas consumption is 24.5 m³/h; at 75% — 19.3 m³/h; and at 50% — 14.0 m³/h. These figures provide a clear understanding of the operating modes for which the generator is designed and how to plan the gas supply line at the site.

At the heart of the unit is a 4-cylinder in-line Generac engine with a displacement of 4,450 cm³. This is a turbocharged, liquid-cooled gas engine with electric start and a rated speed of 1,500 rpm. This configuration is well suited for stationary standby applications, where the generator must run smoothly, quietly and predictably even under heavy three-phase loads.

Power generation is handled by the Mecc Alte ECP 32-2L/4 C — a brushless alternator with insulation class H, 4 poles, IP23 protection rating and an electronic voltage regulation system with AVR DSR. For the customer, this means more stable power quality, better suitability for technical loads and, overall, a more robust power section for commercial or industrial standby applications.

The Power Zone Pro control system is one of the main advantages here. It is a fully-fledged industrial controller with a 4.3-inch colour touchscreen display, diagnostic functions, a history log, programmable inputs and outputs, the ability to connect an external display and expansion modules, as well as remote monitoring via Modbus RTU, Modbus TCP/IP and 10/100 Ethernet. The screen displays three-phase voltage, current, kW, kVA, kVar, frequency, motor speed, coolant temperature, oil pressure and temperature, battery voltage, motor hours, warnings, faults and service information.

The protection features are implemented to a very high standard, which is particularly important for stationary technical facilities. The generator monitors high and low oil pressure, coolant level and temperature, oil temperature, overload, voltage and frequency deviations, current overload, battery issues, short circuits and other critical conditions. This enhances equipment safety and reduces the risk of failure under load.

The standard configuration already includes everything necessary for a robust stationary solution: an oil drain pipe, a reinforced air filter, a fan guard, a stainless steel bellows, factory-filled oil and coolant, a redundant gas shut-off valve, a DN32 PN6 flanged gas connection, an electronic pressure regulator, rich-burn mixture formation with lambda control, a closed cooling system, a radiator on the frame, an electromagnetic starter, EFI, and vibration mounts for the engine and generator. The soundproof version includes sealed doors, high-quality sound-absorbing material, a galvanised housing and a silencer in a dedicated compartment.

For the product listing, it is best to use the version in the soundproof enclosure. It measures 2760×1130×1810 mm, weighs 1349 kg and has a noise level of 67 dB at 7 m / 96 dB LwA. This makes the model suitable for permanent installation at sites where not only power and reliability are important, but also a controlled acoustic environment. In conclusion, the Pramac GGW 85 G 400V is a robust gas-fired solution for those seeking a powerful three-phase natural gas backup with a comprehensive range of safety features, a modern controller and industrial-grade build quality.