Since 1977

500 kVA Generator

Equal to 400 kW. Cummins, Deutz, Perkins & Baudouin engines, open and silent, with fuel use and dimensions compared.

Overview

Getting to Know 500 kVA Generators

A 500 kVA generator is about 400 kW at a power factor of 0.8. This class is widely used as main or backup power for buildings, hotels, hospitals and mid-size factories.

Buyers rarely say prime or standby. If you need 500 kVA as main power, choose a 500 kVA prime model. If it is only backup during grid outages, a 450–455 kVA prime model with a standby rating of about 500 kVA is usually enough.

Suited to

Office buildings
Hotels
Hospitals
Apartments
Campuses & schools
Small and mid-size factories

Prime or Standby?

Main power

500 kVA prime

10models

The generator is the main power source, for example at a site without grid power
It runs long hours every day with a varying load

e.g. BJPS-500-WP

Grid backup

500 kVA standby

7models

The generator only runs during grid outages
Prime slightly below 500 kVA, standby around 500 kVA: usually more economical

e.g. CJPS C-450 WP1

Model

500 kVA Generator Options

Every JERBINDO 500 kVA model by engine brand. Select a model for full specifications.

Cummins engine

Fuel at 75% (prime): 74–82 L/hr10 models

Model	Engine	Prime kVA	Standby kVA	Fuel 75%	Open dimensions
CJPS C-500 WPQSZ13-G10500 kVA prime	QSZ13-G10	500	550	74 L/hr	3600 × 1450 × 2100 mm
CJPS C-500 WP1 (CCEC)QSZ13-G3500 kVA prime	QSZ13-G3	500	550	74 L/hr	3600 × 1450 × 2100 mm
CJPS C-500 WP1 (DCEC)QSZ13-G3500 kVA prime	QSZ13-G3	500	550	74 L/hr	3600 × 1450 × 2100 mm
CJPS C-500 WP2KTA19-G3A500 kVA prime	KTA19-G3A	500	550	82 L/hr	3485 × 1155 × 1640 mm
CJPS C-500 WP3KTA19-G4500 kVA prime	KTA19-G4	500	550	82 L/hr	3485 × 1155 × 1640 mm
CJPS O-500 WPQSX15-G8500 kVA prime	QSX15-G8	500	550	78.7 L/hr	3600 × 1450 × 2100 mm
CJPS C-450 WP16ZTAA13-G4500 kVA standby	6ZTAA13-G4	450	495	66.8 L/hr	3600 × 1355 × 1900 mm
CJPS C-450 WP2QSZ13-G5500 kVA standby	QSZ13-G5	450	495	50.8 L/hr	3600 × 1355 × 1900 mm
CJPS C-450 WP3KTA19-G3500 kVA standby	KTA19-G3	450	495	73 L/hr	3485 × 1155 × 1640 mm
CJPS O-450 WPQSX15-G6500 kVA standby	QSX15-G6	450	495	74.3 L/hr	3600 × 1400 × 2000 mm

Cummins Generator

Deutz engine

Fuel at 75% (prime): 84.9 L/hr3 models

Model	Engine	Prime kVA	Standby kVA	Fuel 75%	Open dimensions
DJPS-500 WPBF8M 1015 CP500 kVA prime	BF8M 1015 CP	500	550	84.9 L/hr	3000 × 1500 × 2050 mm
DJPS-500 WP-LBF8M 1015 CP500 kVA prime	BF8M 1015 CP	500	550	84.9 L/hr	3000 × 1500 × 2050 mm
DJPS-450 WPBF 8M 1015 C500 kVA standby	BF 8M 1015 C	450	495	75.3 L/hr	3000 × 1500 × 2050 mm

Deutz Generator

Perkins engine

Fuel at 75% (prime): 81 L/hr3 models

Model	Engine	Prime kVA	Standby kVA	Fuel 75%	Open dimensions
PJPS-500 WP2506 C-E15TAG2500 kVA prime	2506 C-E15TAG2	500	550	81 L/hr	3500 × 1350 × 2000 mm
PJPS-450 WP2506 C-E15TAG1500 kVA standby	2506 C-E15TAG1	450	495	73 L/hr	3500 × 1350 × 2000 mm
PJPS-455 WP2506 C-E15TAG1500 kVA standby	2506 C-E15TAG1	455	500.5	73 L/hr	3500 × 1350 × 2000 mm

Perkins Generator

Baudouin engine

1 models

Model	Engine	Prime kVA	Standby kVA	Fuel 75%	Open dimensions
BJPS-500-WP6M21G550/5500 kVA prime	6M21G550/5	500	550	–	3090 × 1230 × 1850 mm

Baudouin Generator

Installation

Generator Room Requirements

General guidance for the 500 kVA class from engine and generator makers' installation manuals. Final figures follow the installation drawings and datasheet of the chosen unit.

Minimum room, 1 unit: 6.6 × 4.5 m
Open type (L × W × H): 3000–3600 × 1155–1500 × 1640–2100 mm
Silent canopy (L × W × H): 4400 × 1800 × 2400–2600 mm

Service clearance

1.5 m per side

Leave at least about 1.5 m of clear space on every side of the generator for maintenance (Cummins' guide for units from 100 kVA; other sources give 0.9–1.2 m), plus room above it to open panels. With the largest open unit in this class, one generator needs a room of at least about 6.6 × 4.5 m.
When installing more than one unit, leave about 2 m between generators.

Ventilation

Outlet ≈ 1.5× radiator

Provide an air inlet behind the generator and an outlet in front of the radiator. As a general guide, the outlet is about 1.5× the radiator core area and the inlet 1.5–2× (louvres cut the free area by about 25%). Keep the room no more than about 7–10 °C above outdoor air; above 40 °C the generator needs derating.
Fit a duct adaptor from the radiator to the outlet so hot air does not circulate back into the room.

Foundation

≥ 2× unit weight

A concrete foundation of at least about 2× the generator's weight, extending 150–300 mm beyond the skid on every side, with vibration isolators between the skid and the foundation. Let the concrete cure for 28 days before loading. Dry weight of the open units in this class: 3.7–4.9 tonnes.

Day tank

590–680 L / 8 hours

Fuel use at 75% load: 74–84.9 L/hr, or about 590–680 L for 8 hours of running. Size the day tank from this; for longer running add a bulk tank with a transfer pump.
NFPA 37 limits a tank inside the generator room to 2,500 L unless it has its own fire-rated room; local regulations also apply.

Exhaust

Backpressure ≤ datasheet

A flexible connector at the engine outlet; pipework supported on its own so it does not load the engine, insulated and fitted with a rain cap. Choose the pipe and silencer so backpressure stays within the engine datasheet limit; avoid long runs and many bends. Discharge away from the air inlet.

Configuration

Open · Silent · Mobile

Open units for an enclosed generator room; silent canopy units for outdoors.
An ATS/AMF panel for grid backup; a synchronizing panel for two or more units running in parallel.
Silent mobile is available for needs that move between sites.

Projects

Generator Projects Around 500 kVA

Projects from our project list with units of around 500 kVA.

Hospitals, Clinics, Laboratories & Other Healthcare Facilities

Deutz 2 x 500 kVA Open Type

Cilacap, Central Java

Educational Institutions

Baudouin 500 kVA Open Type

Nusantara Capital City (IKN)

Power & Utilities

Baudouin 8 x 500 kVA Silent Type

Timor Leste

Hospitals, Clinics, Laboratories & Other Healthcare Facilities

Deutz 4 x 500 kVA Open Type

Surabaya, East Java

Office & Commercial Buildings

Baudouin 500 kVA Silent Type

Kediri, East Java

Office & Commercial Buildings

Cummins 500 kVA Silent Type

Surabaya, East Java

Learn more

FAQ

Frequently Asked Questions

How much does a 500 kVA generator cost?

The price of a 500 kVA generator depends on the engine brand, the configuration (open type, silent canopy, silent mobile), an ATS/AMF or synchronizing panel, installation and commissioning, the delivery location, and the warranty and after-sales service. Use Request a Quote with your requirements and our sales team will send a quotation.

How many kW is a 500 kVA generator?

At the 0.8 power factor commonly used for generators, 500 kVA equals 400 kW. The exact kW of each model is on its specification page.

How much diesel does a 500 kVA generator use?

At 75% load, the 500 kVA prime generators in our catalogue use about 74–84.9 L/hr, depending on the engine brand and model. Fuel use at 50% and 100% load is on each model's page.

Should I choose 500 kVA prime or standby?

Choose a 500 kVA prime model if the generator is the main power source or runs long hours with a varying load. If you need 500 kVA only as backup during grid outages, a model with a 500 kVA standby rating (and a slightly lower prime rating) is usually enough and more economical.