T1200U IV - SDMO | 1200 kW 1500 kVA Diesel Generator

The T1200U IV - SDMO | 1200 kW 1500 kVA is a heavy duty diesel generator set built for facilities that cannot afford downtime. It pairs a Mitsubishi S12R-PTA engine with a Leroy Somer LSA 50.2 L7 alternator to deliver dependable 60 Hz power.

• Standby power (ESP): 1200 kWe / 1500 kVA
• Prime power (PRP): 1091 kWe / 1364 kVA
• Voltage: 480/277 V, with 440/254 V available
• Standby amps: 1804 A at 480 V
• Frequency: 60 Hz at 1800 RPM
• Engine: Mitsubishi S12R-PTA, turbocharged V12
• Alternator: LSA 50.2 L7, three phase, 4 pole
• Performance class: G3
• Compact dimensions: 4327 x 2000 x 2365 mm
• Dry weight: 9781 kg
• Version: Enclosed (Fully Weather Proof Silent Enclosure)
• EPA Compliant: Non-EPA Export Only

These ratings follow ISO 8528-1 at 25°C air inlet temperature, 100 kPa barometric pressure, and 30% relative humidity. For site conditions outside that range, refer to the derating table before sizing your installation.

Mitsubishi Engine Performance

At the core of this generator set is a 12 cylinder Mitsubishi engine with a 170 mm bore and 180 mm stroke. It produces up to 1320 kW of standby power at rated speed. An electronic governor holds frequency regulation within +/- 0.5%.

• Fuel consumption at 100% load: 298 L/h
• Fuel consumption at 75% load: 229 L/h
• Fuel consumption at 50% load: 166 L/h
• Oil capacity: 180 L
• Radiator and engine coolant capacity: 300 L

The cooling system uses an ethylene glycol coolant and a mechanical fan moving 26.90 m3/s of air. A thermostat operating between 82 and 94°C keeps the engine in its ideal temperature range. The unit ships with oil and coolant rated to -30°C, so it arrives ready for commissioning.

T1200U IV - SDMO | 1200 kW 1500 kVA Alternator Details

The LSA 50.2 L7 alternator is a brushless, single bearing design with direct coupling to the engine. Class H insulation and IP 23 protection support long service life in demanding environments. AVR regulation keeps output voltage steady as loads change.

• Continuous nominal rating at 40°C: 1680 kVA
• Standby rating at 27°C: 1850 kVA
• Efficiency at 100% load: 95.20%
• Total harmonic distortion: under 3.5%
• Unbalanced load acceptance: 50%

The alternator can sustain a short circuit of 3 In for 10 seconds, which helps downstream protective devices operate correctly. Voltage recovers within 500 ms after a 20% transient. With 3927 kVA of motor starting capability, it handles large inductive loads with confidence.

Control Panel Options

Three control panels are available so you can match the interface to your application. Each one gives operators clear visibility of the generator's condition. Your choice depends on how much monitoring and communication you need.

• M80: tachometer, hours counter, coolant temperature and oil pressure indicators, emergency stop
• TELYS: electrical measurements, engine parameters, alarms and faults, USB and PC connection
• APM802: full touch screen power plant management with PLC and regulation functions

The TELYS suits most standalone installations thanks to its large display and scroll wheel navigation. The APM802 is designed for paralleled sets in hospitals, data centers, and industrial plants. Its customization function complies with the IEC 61131-3 standard.

T1200U IV - SDMO | 1200 kW 1500 kVA Enclosures and Features

This generator set is offered as an open compact unit or inside a 20 foot container. Both container versions measure 6058 x 2438 x 2896 mm and include a 500 L fuel tank. That makes transport and outdoor placement straightforward.

• ISO 20 Si container: 14932 kg, 83 dB(A) at 7 m
• CIR 20 Ssi container: 16250 kg, 77 dB(A) at 7 m
• Mechanically welded chassis with antivibration suspension
• Exhaust compensators with flanges
• 24 V charge alternator and starter

A protective grille for the fan and rotating parts is available as a CE option. Every unit includes a manual for use and installation. Contact our team today to request a quote and configure this generator for your site.