PSI INDUSTRIAL ENGINES
In ProductionPSI 20L
PSI 20L is a 19.6 L L6 spark-ignition natural-gas generator engine. Natural-gas ratings: 50 Hz prime 365 kWe / 414 kWm; 50 Hz standby 400 kWe / 460 kWm; 60 Hz prime 400 kWe / 450 kWm; 60 Hz standby 500 kWe / 570 kWm. Ratings exclude propane/LPG data and were verified from official PSI natural-gas rating tables.
Standby Power
625 kVA
Electrical Output
500 kWe
Cylinders / Config
L6
Displacement
19.6 L
Rated Speed
1,500 RPM
ISO 8528 Power Ratings
Power Factor: 0.8 pfkWm = mechanical engine shaft power · kWe = electrical output · kVA = apparent electrical power.
| Operating Duty | kWm (Mechanical) | kWe (Electrical) | kVA (Rating) |
|---|---|---|---|
| Prime | 414 | 365 | 456.3 |
| Standby | 460 | 400 | 500 |
| Operating Duty | kWm (Mechanical) | kWe (Electrical) | kVA (Rating) |
|---|---|---|---|
| Prime | 450 | 400 | 500 |
| Standby | 570 | 500 | 625 |
Mechanical & Electrical Specifications
| Brand | PSI |
| Model | 20L |
| Configuration | L6 |
| Cylinders | 6 |
| Displacement | 19.6 L |
| Compression Ratio | 10.5:1 |
| Dry Weight | 2110 kg |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | EPA |
| Country of Origin | United States |
Frequently Asked Questions
What is the power output of the PSI 20L?
The PSI 20L is rated at 500 kVA standby / 456 kVA prime at 50 Hz (1,500 rpm); and 625 kVA standby / 500 kVA prime at 60 Hz (1,800 rpm).
Does the 20L run at 50 Hz or 60 Hz?
The PSI 20L is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the PSI 20L use?
The PSI 20L is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the 20L?
The PSI 20L is an inline-6 (6-cylinder) engine with a displacement of 19.6 L.
What emissions standard does the 20L meet?
The PSI 20L is certified to U.S. EPA Stationary emissions standards.
Is the PSI 20L still in production?
Yes — the PSI 20L is a current production model.
Is a datasheet available for the 20L?
Yes — an official PSI datasheet for the PSI 20L can be downloaded from this page.