Perkins 403A-15G1: A 15 kVA Diesel Engine for Prime and Standby Duty

Compact 15 kVA diesel engine for continuous operation

The Perkins 403A-15G1 is a naturally aspirated, three-cylinder diesel engine designed for generator set integration. It produces 15 kVA standby power (13.2 kW) and 13 kVA prime power, running at 1500 rpm. For buyers looking for a genuinely continuous-duty prime power unit rather than a short-duration standby reserve, that distinction between the two ratings is the number to start with.

Key specifications

• Standby power: 15 kVA / 13.2 kW
• Prime power: 13 kVA
• Engine speed: 1500 rpm
• Fuel: Diesel
• Voltage / frequency / phase: 12 V, 50 Hz, 3-phase
• Enclosure: open
• Fuel tank: 6 L
• Fuel consumption: 2.8 L/h at 75% load
• Weight: 197 kg
• Dimensions: 820 x 469 x 793 mm
• Year built: 2026, new

Where this engine is typically used

A 15 kVA three-phase output is the sweet spot for small commercial and light industrial loads. Typical applications include:

• Rental companies building compact 15 kVA prime sets for construction site lighting, small tools and temporary power boards
• Agricultural operations powering irrigation pumps, farm workshops and grain handling equipment
• Small workshops and retail premises covering essential circuits where the mains supply is unreliable
• Events and temporary power for distributed loads spread across a site
• Backup for small data or telecom installations requiring 12 V 50 Hz three-phase supply

At 2.8 L/h fuel consumption at 75% load, operating cost per running hour is easy to calculate, which matters when a machine is going to work daily rather than sit idle in a standby role.

Equipment and cold start provisions

This engine package arrives with a mounted air filter, a split-element fuel filter, an oil pressure switch, a coolant temperature switch and a glow plug cold start aid. The split-element fuel filter supports routine servicing, while the two switches give the generator controller the signals it needs for monitoring and protection. The glow plug cold start aid is particularly useful in cold ambient conditions or during early-morning starts.

Because the enclosure is open, the unit is intended for installation inside a canopy, acoustic enclosure or plant room where it will be protected from weather and sound.

Physical footprint and handling

At 820 x 469 x 793 mm and 197 kg, the engine can be moved by a forklift or lifting equipment and fits through standard access routes. The 6 L fuel tank is a base tank sized for the package rather than extended runtime, so longer operating windows normally require an additional day tank and fuel lines.

Integration notes for buyers

Because this product is an engine rather than a complete generator set, the alternator, canopy, controller, radiator and exhaust system are supplied separately. Confirm the alternator and control panel specification against your load, and match the alternator voltage to the 12 V 50 Hz three-phase output.

All machines are tested in our own workshop before delivery, and loading, worldwide shipping by road, sea or air, and export documentation are handled by GEC Istanbul. Each machine is supported by a personal advisor, who can quote availability and lead times for the configuration you need.

Summary

The Perkins 403A-15G1 gives professional buyers a new, compact and economical 15 kVA three-phase diesel engine for prime and standby duties, with the monitoring equipment and cold start aids expected in a modern package. Request a quotation for reference GEC-50573 and discuss the alternator and enclosure options with your advisor.