Perkins 2506C-E15TAG2 Diesel Engine
Overview
The Perkins 2506C-E15TAG2 is a turbocharged, air-to-air chargecooled, six-cylinder inline diesel engine from the Perkins 2500 Series ElectropaK range, purpose-built as the prime mover for medium-to-large generator sets. Delivering a nett engine output of 435 kWm at 1500 rev/min for prime power and 478 kWm for standby duty, with a typical generator set electrical output of 500 kVA prime and 550 kVA standby, the 2506C-E15TAG2 is one of the most widely specified engines in its power class for continuous and emergency power applications across construction sites, hospitals, data centres, and industrial plants.
As the official authorized partner and exclusive regional representative for Perkins, Seven Star LLC proudly supplies genuine Perkins 2506C-E15TAG2 engines and factory-certified spare parts to customers across Oman and the wider GCC. Every engine is sourced through Perkins’ authorized distribution channel, ensuring full warranty coverage, authentic ElectropaK build quality, and access to Perkins technical support for generator set integrators, rental fleet operators, and EPC contractors working on power generation projects in Muscat, Sohar, and Salalah.
Operating Principle
The Perkins 2506C-E15TAG2 operates on the four-stroke direct-injection diesel cycle with a compression ratio of 16:1 and mechanically operated unit fuel injectors (MEUI) delivering injection pressures up to 200 MPa. Combustion air is supplied through a single turbocharger and air-to-air aftercooler (charge cooler), which compresses and cools intake air before it enters the cylinders, raising volumetric efficiency and allowing the 15-litre displacement engine to produce substantially more power per litre than a naturally aspirated design while keeping exhaust gas temperatures and NOx output within EU Stage II non-road mobile machinery limits.
Speed and fuel delivery are governed by a full electronic engine management system controlling speed governing, air-to-fuel ratio, start and stop sequencing, and continuous engine protection diagnostics, governing to ISO 8528-5 class G3 steady-state performance. This electronic control gives the 2506C-E15TAG2 fast, stable frequency recovery under sudden load steps – a critical characteristic for standby generator sets that must pick up hospital, data centre, or process loads within seconds of mains failure, without exceeding a 10% transient frequency deviation.
Engineering Design of the Perkins 2506C-E15TAG2
Mechanically, the Perkins 2506C-E15TAG2 uses a 137 mm bore × 171 mm stroke, in-line six-cylinder architecture with a dry weight of approximately 1,633 kg as a complete ElectropaK unit, factory-fitted with its own radiator, cooling fan, and air cleaner so it can be bolted directly onto a generator set baseframe without separate cooling package design. The engine block integrates a gear-driven coolant pump circulating up to 58 litres of inhibited coolant, and a gear-driven lubrication system with a 62-litre total oil system capacity supplying filtered oil at up to 420 kPa at rated speed through a 30-micron filtration screen.
The electrical system runs on a 24V negative-earth configuration with a 70-amp alternator and a 7.5 kW, 24V starter motor rated for minimum cranking speeds of 100 to 120 rev/min depending on ambient temperature, with cold-start aids such as block heaters available for installations exposed to lower winter temperatures. Engine-mounted sensors feed the electronic control module, which interfaces directly with generator set controllers such as the DSE7320 for synchronized monitoring of oil pressure, coolant temperature, speed, and fault diagnostics from the control panel.
Key Features
The Perkins 2506C-E15TAG2 combines proven ElectropaK architecture with modern electronic control, giving specifiers a dependable, serviceable prime mover backed by a global parts and service network. Key features include:
- Turbocharged and air-to-air chargecooled six-cylinder design delivers 435 kWm prime power and 478 kWm standby power at 1500 rev/min.
- Mechanically operated unit fuel injection (MEUI) with 200 MPa injection pressure ensures efficient atomization and low specific fuel consumption of approximately 199 g/kWh at prime rating.
- Full electronic engine management system governs speed, air-to-fuel ratio, and start-stop sequencing to ISO 8528-5 class G3 steady-state accuracy.
- Factory-integrated radiator, cooling fan, and air cleaner reduce generator set integration time and eliminate separate cooling system design.
- Certified to EU 97/68/EC Stage II non-road mobile machinery emissions limits, with non-emissions-compliant variants available for the GCC market.
- 62-litre lubrication system capacity with 30-micron filtration and 420 kPa rated oil pressure supports extended service intervals.
- 24V electrical system with 70-amp alternator and 7.5 kW starter motor ensures reliable cold-start cranking performance.
- Compatible with major generator control systems including the DSE7320 for remote monitoring, AMF, and synchronization applications.
Industrial Applications
The Perkins 2506C-E15TAG2 is specified as the prime mover for 500 kVA to 550 kVA diesel generator sets serving standby and prime power roles in construction sites, hospitals, hotels, data centres, water treatment plants, and oil and gas facilities. Its combination of fast load acceptance, robust ElectropaK cooling package, and Stamford or equivalent alternator pairing makes it a standard choice for rental power fleets and emergency backup installations where reliability under variable load is essential.
As the officially authorized partner for Perkins, Seven Star LLC distributes genuine 2506C-E15TAG2 engines and generator sets to contractors, facility operators, and OEM panel builders across Oman and the GCC, supporting critical infrastructure projects in the Sohar and Salalah free zones, Muscat commercial developments, and remote oil and gas sites where dependable standby power and fast access to genuine spare parts are essential to project continuity.
Technical Specifications
The table below summarizes the principal technical specifications of the Perkins 2506C-E15TAG2 ElectropaK diesel engine at 1500 rev/min, 50 Hz rating, confirming why the Perkins 2506C-E15TAG2 remains a preferred prime mover for standby and prime power generator sets in Oman.
| Parameter | Specification |
|---|---|
| Model | Perkins 2506C-E15TAG2 |
| Engine Type | Turbocharged, air-to-air chargecooled, 4-stroke diesel |
| Cylinders | 6, in-line |
| Bore × Stroke | 137 mm × 171 mm |
| Displacement | 15 litres |
| Compression Ratio | 16:1 |
| Prime Power (1500 rpm) | 435 kWm / 500 kVA |
| Standby Power (1500 rpm) | 478 kWm / 550 kVA |
| Governor Type | Electronic, ISO 8528-5 class G3 |
| Fuel System | Mechanically operated unit injectors (MEUI), 200 MPa |
| Lubrication System Capacity | 62 litres |
| Coolant System Capacity | 58 litres |
| Electrical System | 24V negative earth, 70A alternator, 7.5 kW starter |
| Dry Weight (ElectropaK) | Approximately 1,633 kg |
| Emissions Certification | EU 97/68/EC Stage II (non-road mobile machinery) |
Request a Quote for Perkins 2506C-E15TAG2 Diesel Engine
As the authorized partner for Perkins in Oman and the GCC, Seven Star LLC supplies genuine Perkins 2506C-E15TAG2 diesel engines and generator sets with full manufacturer warranty, regional warehouse stock, and technical datasheet support. Contact our instrumentation and power generation division today to submit a formal RFQ, request engineering assistance for generator set integration, or arrange technical consultation for your standby or prime power project.
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