GenPro-branded enclosure reference; final appearance follows the confirmed build specification.

Designed and manufactured
in the United KingdomPerkins / Acoustic canopied / 50 Hz

20 kVA class
Perkins diesel generator

Name: GenPro GPS20PS Perkins Acoustic canopied diesel generator
Brand: GenPro Power Solutions
SKU: GPS20PS

GPS20PS

Acoustic canopied generator with a 404A-22G engine and Stamford S0L2-G1 reference alternator. Acoustic canopy and sound requirements to be confirmed for your application.

Prime / PRP19.6 kVA15.7 kW

Standby / ESP21.2 kVA17 kW

Exact ratings above: 400 V, 3-phase, 50 Hz reference configuration. The model number is a rounded class.

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Price and lead time confirmed with your quotation.

Reference build

Technical specification.

GenPro model	GPS20PS
Engine brand / model	Perkins 404A-22G
Alternator	Stamford S0L2-G1
Frequency	50 Hz
Reference voltage	400 V
Reference phase	3 phase
Exact prime rating	19.6 kVA / 15.7 kW
Exact standby rating	21.2 kVA / 17 kW

Aspiration	Naturally Aspirated
Governor	Mechanical
No. of Cylinders	4
Cylinder Arrangement	In Line
Displacement	2.216L
Cooling Type	Liquid Cooled
Coolant Capacity	7.0L
Oil Capacity	10.6L
Type	Brushless
Poles	4
AVR Model	AS540
Voltage Regulation	1%
Insulation Class	H
Excitation	Self Excited

Voltage-specific ratings

Ratings for the reference engine and alternator configuration. Confirm the required connection and voltage with your quotation.

Voltage	ESP kVA	ESP kW	PRP kVA	PRP kW
200 V	21.2 kVA	17 kW	19.6 kVA	15.7 kW
208 V	21.3 kVA	17 kW	19.7 kVA	15.8 kW
230 V	21.2 kVA	17 kW	19.6 kVA	15.7 kW
240 V	21.3 kVA	17 kW	19.7 kVA	15.8 kW
400 V	21.2 kVA	17 kW	19.6 kVA	15.7 kW
415 V	21.3 kVA	17 kW	19.7 kVA	15.8 kW

Choose the details

Configuration options.

These documented electrical combinations sit within this rounded model family. Final enclosure and component selection are agreed with your quotation.

Engine	Alternator	Phase	Voltage	Prime / PRP	Standby / ESP
404A-22G	Stamford S0L2-G1	3	400 V	19.6 kVA	21.2 kVA
404J-22G	Stamford S0L2-G1	3	400 V	19.7 kVA	21.4 kVA
403A-15G2	Stamford S0L2-G1	3	400 V	14.8 kVA	15.9 kVA
404A-22G	Leroy Somer TAL040F	3	400 V	20 kVA	22 kVA
404J-22G	Leroy Somer TAL040F	3	400 V	20 kVA	22 kVA
403A-15G2	Leroy Somer TAL040D	3	400 V	14.8 kVA	16.2 kVA
404A-22G	Stamford S1L2-J1	1	230 V	18.3 kVA	20.1 kVA
404J-22G	Stamford S1L2-J1	1	230 V	18.4 kVA	20.3 kVA
403A-15G2	Stamford S1L2-J1	1	230 V	13.8 kVA	15.1 kVA
404A-22G	Leroy Somer TAL042D	1	230 V	18.5 kVA	20.2 kVA
404J-22G	Leroy Somer TAL042D	1	230 V	18.6 kVA	20.4 kVA
404A-22G	Leroy Somer TAL042C	1	230 V	18 kVA	19.5 kVA

Installation & enclosure

Dimensions (L × W × H)	2240 × 1038 × 1378 mm
Reference weight	880.75 kg
Reference fuel tank	80 litres
Configuration market	UK/EU
Manufacturer noise reference at 7 m	76 dB(A)

Dimensions and weight relate to the stated reference build, not every option. Acoustic figures, where listed, are manufacturer references at 75% rated kW using distance corrections. Confirm the project noise requirement and final drawing before installation.