Pramac GA20000 | 20kVA LPG & Natural Gas Standby Generator | 400V Three Phase | Wi-Fi Monitoring

The Pramac GA20000 LPG / Natural Gas Standby Generator is a powerful, reliable and fully automatic backup power solution designed to protect homes, commercial premises and essential electrical installations against unexpected mains power failures.

Delivering up to 20kVA / 16kW standby power on LPG or 17kVA / 13.6kW on Natural Gas, the GA20000 combines a dependable Generac G-FORCE 999cc engine with advanced digital controls, automatic voltage regulation and flexible dual-gas fuel operation.

Designed specifically for 400V three-phase standby applications, this generator can be paired with a compatible LTS Automatic Transfer Switch, allowing the system to detect a mains power failure, start automatically and restore power to selected electrical circuits without the need for manual intervention.

With its sound-attenuated aluminium enclosure, integrated Evolution digital controller, Wi-Fi connectivity and Mobile Link remote monitoring capability, the GA20000 offers a modern, professional standby power solution for customers requiring dependable emergency electricity.

Up to 20kVA Standby Power Output

The Pramac GA20000 delivers substantial three-phase backup power for domestic and commercial applications.

Its standby output varies depending on the selected fuel source.

When operating on LPG:

• Maximum standby power: 20kVA

• Maximum active power: 16kW

When operating on Natural Gas:

• Maximum standby power: 17kVA

• Maximum active power: 13.6kW

Electrical specifications:

• Output voltage: 400V

• Phase configuration: Three phase

• Frequency: 50Hz

• Power factor: 0.8

• Voltage regulation: Automatic Voltage Regulation (AVR)

The generator is designed to support compatible electrical loads during temporary mains electricity failures.

Its three-phase configuration makes it particularly suitable for properties and installations with an existing three-phase electrical supply.

Important: The GA20000 is a three-phase generator and should not be selected for a single-phase property without a suitable electrical design assessment. Available power per phase, load balancing and starting currents must be considered when sizing the installation.

Dual-Fuel Gas Operation – LPG or Natural Gas

The GA20000 offers the flexibility to operate using either Liquefied Petroleum Gas (LPG) or Natural Gas, depending on the fuel supply available at the installation.

This makes it suitable for a wide range of standby power applications.

Natural Gas Operation

For properties with an appropriate mains Natural Gas supply, the GA20000 can provide convenient standby electricity without the need to store liquid fuel on site.

Natural Gas operation is particularly attractive for permanent domestic and commercial backup installations.

LPG Operation

Where mains Natural Gas is unavailable, the GA20000 can operate using a correctly specified LPG supply.

This can make the generator suitable for rural properties, agricultural buildings, remote locations and other installations where LPG is readily available.

The gas supply, regulator, pipework and installation must be designed and commissioned by appropriately qualified professionals.

Natural Gas Fuel Consumption

The Pramac GA20000 has the following quoted Natural Gas consumption figures:

Generator Load	Natural Gas Consumption
50% load	4.50m³/hour
100% load	7.02m³/hour

These figures provide a useful guide when assessing anticipated running costs and gas supply requirements.

Actual consumption will vary depending on electrical load, gas quality, operating conditions and installation requirements.

LPG Fuel Consumption

When operating on LPG, the GA20000 has the following quoted consumption figures:

Generator Load	LPG Consumption
50% load	6.83 litres/hour
100% load	10.86 litres/hour

LPG consumption should be considered when selecting a suitable fuel storage arrangement for the installation.

For installations requiring extended backup running times, the available LPG storage capacity and fuel delivery arrangements should be assessed carefully.

The LPG supply must also be capable of delivering sufficient fuel at the required rate under anticipated environmental conditions.

Automatic Standby Operation with Optional LTS Transfer Switch

One of the key advantages of the Pramac GA20000 is its ability to operate as part of an automatic standby power system.

When paired with a compatible LTS Automatic Transfer Switch, the generator can automatically respond to a mains electricity failure.

Typical operating sequence:

1. The automatic transfer system detects a loss of mains electricity.

2. The generator receives a start signal.

3. The GA20000 starts and stabilises its electrical output.

4. The transfer switch connects the selected installation to generator power.

5. When mains electricity returns and stabilises, the system transfers the load back to the mains supply.

6. The generator completes its shutdown sequence.

This provides added convenience and helps reduce disruption during unexpected power outages.

Please note: The LTS Automatic Transfer Switch is an optional accessory and is not included as standard with the generator.

A qualified electrical installer must confirm the appropriate transfer switch, protection arrangements and installation design.

Generac G-FORCE 999cc Engine

The Pramac GA20000 is powered by a reliable Generac G-FORCE 999cc engine, designed specifically for standby power generation.

The engine provides dependable starting and consistent performance during emergency power requirements.

Key engine features include:

• Generac G-FORCE engine technology

• 999cc engine displacement

• LPG or Natural Gas compatibility

• Electric starting

• Automatic low-oil pressure protection

• High-temperature protection

• Designed for standby power applications

The GA20000 is intended primarily for emergency standby operation rather than continuous prime-power applications.

Evolution Digital Controller

The GA20000 features an advanced Evolution digital control system, providing convenient management and monitoring of generator operation.

The controller is designed to support automatic standby functions and display relevant system information.

It also helps manage generator operation, protection and maintenance requirements.

The digital interface provides a convenient way to monitor the generator and identify potential operating or maintenance issues.

Wi-Fi Connectivity & Mobile Link Remote Monitoring

The Pramac GA20000 supports Wi-Fi connectivity and Mobile Link remote monitoring, providing a convenient way to check generator information without needing to be physically beside the machine.

Depending on the monitoring service and connectivity arrangements, users can access information such as:

• Generator operating status

• System notifications

• Maintenance information

• Operating history

• Generator readiness

This is particularly useful for homeowners, commercial premises and properties that are not occupied continuously.

Remote monitoring functions may require registration, compatible internet connectivity and an applicable service subscription.

Automatic Voltage Regulation – Stable Electrical Output

The GA20000 incorporates Automatic Voltage Regulation (AVR) to help maintain consistent output voltage during generator operation.

With a quoted Total Harmonic Distortion (THD) of less than 5%, the generator is designed to provide stable electrical power suitable for many modern electrical applications.

Potential applications include:

• Household electrical systems

• Lighting circuits

• Heating controls

• Refrigeration equipment

• Office equipment

• Commercial electrical installations

• Electronic control systems

• Compatible sensitive electronics

Electrical equipment compatibility should always be checked, particularly where critical or unusually sensitive loads are involved.

Sound-Attenuated Aluminium Enclosure

The Pramac GA20000 features a durable, sound-attenuated aluminium enclosure designed to provide protection from environmental conditions while helping reduce operating noise.

The generator has a quoted sound level of approximately 59dB(A) under the manufacturer's specified measurement conditions.

Its enclosed design makes it particularly suitable for permanent standby installations where durability, weather protection and reduced operating noise are important considerations.

The generator must be installed outdoors in accordance with the manufacturer's clearance, ventilation and exhaust requirements.

Automatic Engine Protection

The GA20000 incorporates protective systems designed to safeguard the engine and support dependable standby operation.

These include:

• Automatic low-oil pressure shutdown

• High-temperature protection

• Automatic voltage regulation

• Digital system monitoring

• Fault indication through the control system

These functions help reduce the risk of damage and provide useful operating information.

Regular inspection, servicing and maintenance remain essential to reliable standby operation.

Compact Standby Generator Design

Despite its substantial standby output, the GA20000 features a relatively compact enclosed construction.

Dimensions:

• Width: 648mm

• Height: 733mm

• Length: 1232mm

Weight: 220kg

The aluminium enclosure provides a durable, professional installation suitable for permanent outdoor positioning.

Due to the generator's weight and installation requirements, suitable lifting equipment, a stable mounting surface and professional handling arrangements may be required.

Professional Installation & Commissioning

The Pramac GA20000 is designed to be connected directly to a property's electrical installation through an appropriate automatic or manual transfer arrangement.

Unlike portable generators, it does not provide conventional plug-in power sockets.

Professional installation is required and should include, as applicable:

• Electrical installation and transfer switch connection

• Suitable electrical protection and earthing

• Correct gas supply installation

• Generator positioning and ventilation

• Initial system checks

• Generator commissioning

• Automatic transfer system testing

• Confirmation of operating and maintenance requirements

Electrical work must be carried out by a suitably qualified electrician, and gas installation work must be completed by an appropriately qualified Gas Safe registered engineer.

Correct installation and commissioning are essential to achieving safe, reliable generator operation.

Ideal Applications

The Pramac GA20000 is suitable for a variety of three-phase standby power applications, including:

• Large domestic properties with three-phase electricity

• Rural homes and estates

• Commercial premises

• Offices and small business facilities

• Agricultural properties

• Workshops

• Retail premises

• Property management installations

• Heating and refrigeration backup

• Essential lighting and electrical circuits

• Emergency power systems

• Remote and occasionally occupied properties

The generator's ability to operate on either LPG or Natural Gas makes it particularly flexible for permanent standby installations.

5-Year Limited Manufacturer's Warranty

The Pramac GA20000 is supplied with a 5-year limited manufacturer's warranty, subject to Pramac's warranty terms and conditions.

An optional extension to 10 years may be available at additional cost, providing further reassurance for customers investing in a permanent backup power system.

Warranty eligibility may depend on correct installation, commissioning, maintenance and other manufacturer requirements.

Please contact our team for further information regarding warranty coverage and extension options.

Key Features & Benefits

• 20kVA / 16kW LPG Standby Output – Substantial emergency power capacity

• 17kVA / 13.6kW Natural Gas Output – Flexible mains gas-powered operation

• 400V Three-Phase Supply – Designed for compatible three-phase installations

• Generac G-FORCE 999cc Engine – Reliable standby engine performance

• LPG & Natural Gas Operation – Flexible gas fuel options

• Optional LTS Automatic Transfer Switch – Supports automatic backup operation

• Evolution Digital Controller – Advanced generator management

• Wi-Fi Connectivity – Convenient connected monitoring capability

• Mobile Link Remote Monitoring – Access compatible generator status information remotely

• Automatic Voltage Regulation – Helps maintain stable electrical output

• Less Than 5% THD – Suitable for many modern electrical applications

• Low-Oil Pressure Protection – Automatic engine protection

• High-Temperature Protection – Helps safeguard the generator

• Sound-Attenuated Aluminium Enclosure – Durable and quieter enclosed construction

• 59dB(A) Quoted Noise Level – Subject to manufacturer measurement conditions

• Electric Starting – Convenient automatic standby operation

• 220kg Enclosed Design – Suitable for permanent outdoor installation

• 5-Year Limited Warranty – Optional 10-year extension available

Why Choose the Pramac GA20000?

The Pramac GA20000 LPG / Natural Gas Standby Generator offers a powerful and intelligent solution for customers requiring dependable three-phase emergency electricity.

Combining 20kVA maximum LPG standby output, a reliable Generac G-FORCE engine, advanced Evolution digital controls, Wi-Fi monitoring and automatic transfer switch compatibility, it is designed to provide reassurance when the mains electricity supply fails.

Whether you're protecting a large domestic property, agricultural premises or commercial installation, the GA20000 provides flexible gas-powered standby electricity in a durable and professionally engineered package.

Order your Pramac GA20000 online today from Power Generator UK.

For advice on generator sizing, automatic transfer switches, delivery arrangements or installation requirements, please contact our team on 0800 222 9069.