DIESEL GENERATOR SET MTU 12V4000 DS1250 1250 kWe /60 Hz /Standby 380 - 4160V Reference MTU 12V4000 DS1250 (1125 kWe) for Prime Rating Technical Data SYSTEM RATINGS Standby Voltage (L-L) Phase PF Hz kW kVA Amps skVA@30% Voltage Dip Generator Model* Temp Rise Connection 380V 3 0.8 60 1250 1562 2374 480V** 3 0.8 60 1250 1562 1879 600V** 3 0.8 60 1250 1562 1503 4160V 3 0.8 60 1250 1562 216 2700 743RSL4052 130 °C/40 °C 4 BAR WYE 3100 742RSL4048 130 °C/40 °C 4 BAR WYE 4650 743RSS4288 130 °C/40 °C 4 BAR WYE 3100 742FSM4366 130 °C/40 °C 6 LEAD WYE * Consult the factory for alternate configuration. ** UL 2200 Oﬀered CERTIFICATIONS AND STANDARDS // Emissions – EPA Tier 2 Certified // Generator set is designed and manufactured in facilities certified to standards ISO 9001:2008 and ISO 14001:2004 // Seismic Certification – Optional – IBC Certification – OSHPD Pre-Approval // UL 2200 / CSA – Optional – UL 2200 Listed – CSA Certified // Performance Assurance Certification (PAC) - Generator Set Tested to ISO 8528-5 for Transient Response - Verified product design, quality and performance integrity - All engine systems are prototype and factory tested // Power Rating - Accepts Rated Load in One Step Per NFPA 110 - Permissible average power output during 24 hours of operation is approved up to 85%. 2 / // / MTU 12V4000 DS1250 (1250 kWe) - Standby STANDARD FEATURES* MTU Onsite Energy is a single source supplier Global Product Support 2 Year Standard Warranty 12V 4000 Diesel Engine - 57.2 Liter Displacement - Common Rail Fuel Injection - 4-Cycle // Complete Range of Accessories // // // // Generator - Brushless, Rotating Field Generator - 2/3 Pitch Windings - PMG (Permanent Magnet Generator) supply to regulator - 300% Short Circuit Capability // Digital Control Panel(s) - UL Recognized, CSA Certified, NFPA 110 - Complete System Metering - LCD Display // Cooling System - Integral Set-Mounted - Engine Driven Fan // STANDARD EQUIPMENT* // Engine Air Cleaners Oil Pump Oil Drain Extension & S/O Valve Full Flow Oil Filter Closed Crankcase Ventilation Jacket Water Pump Inter Cooler Water Pump Thermostat Blower Fan & Fan Drive Radiator - Unit Mounted Electric Starting Motor - 24V Governor – Electronic Isochronous Base - Structural Steel SAE Flywheel & Bell Housing Charging Alternator - 24V Battery Box & Cables Flexible Fuel Connectors Flexible Exhaust Connection EPA Certified Engine // Generator NEMA MG1, IEEE and ANSI standards compliance for temperature rise and motor starting Sustained short circuit current of up to 300% of the rated current for up to 10 seconds Self-Ventilated and Drip-Proof Superior Voltage Waveform Digital, Solid State, Volts-per-Hertz Regulator No Load to Full Load Regulation Brushless Alternator with Brushless Pilot Exciter 4 Pole, Rotating Field 130 °C Maximum Standby Temperature Rise 1 Bearing, Sealed Flexible Coupling Full Amortisseur Windings 125% Rotor Balancing 3-Phase Voltage Sensing ±0.25% Voltage Regulation 100% of Rated Load - One Step 5% Maximum Total Harmonic Distortion // Digital Control Panel(s) Digital Metering Engine Parameters Generator Protection Functions Engine Protection CANBus ECU Communications Windows®-Based Software Multilingual Capability Remote Communications to RDP-110 Remote Annunciator Programmable Input and Output Contacts UL Recognized, CSA Certified, CE Approved Event Recording IP 54 Front Panel Rating with Integrated Gasket NFPA110 Compatible * Represents standard product only. Consult Factory/MTU Onsite Energy Distributor for additional configurations. 3 / // / MTU 12V4000 DS1250 (1250 kWe) - Standby APPLICATION DATA // Engine Manufacturer Model Type Arrangement Displacement: L (in3) Bore: cm (in) Stroke: cm (in) Compression Ratio Rated RPM Engine Governor Maximum Power: kWm (bhp) Speed Regulation Air Cleaner // // MTU 12V 4000 G43 4-Cycle 12-V 57.2 (3,491) 17 (6.69) 21 (8.27) 16.5:1 1,800 Electronic Isochronous (ADEC) 1,736 (2,328) ±0.25% Dry Liquid Capacity (Lubrication) Total Oil System: L (gal) Engine Jacket Water Capacity: L (gal) After Cooler Water Capacity: L (gal) System Coolant Capacity: L (gal) // 260 (68.7) 160 (42.3) 40 (10.6) 583 (154) Electrical Electric Volts DC Cold Cranking Amps Under -17.8 °C (0 °F) 24 2,800 Fuel Consumption At 100% of Power Rating: L/hr (gal/hr) At 75% of Power Rating: L/hr (gal/hr) At 50% of Power Rating: L/hr (gal/hr) // Cooling - Radiator System Ambient Capacity of Radiator: °C (°F) Maximum Restriction of Cooling Air, Intake, and Discharge Side of Rad.: kPa (in. H20) Water Pump Capacity: L/min (gpm) After Cooler Pump Capacity: L/min (gpm) Heat Rejection to Coolant: kW (BTUM) Heat Rejection to After Cooler: kW (BTUM) Heat Radiated to Ambient: kW (BTUM) Fan Power: kW (hp) // 341 (90) 268 (70.8) 192 (50.7) 50 (122) 0.12 (0.5) 1,117 (295) 583 (154) 576 (32,757) 396 (22,520) 144 (8,165) 36.7 (49.2) Air Requirements Aspirating: *m3/min (SCFM) Air Flow Required for Rad. Cooled Unit: *m3/min (SCFM) Remote Cooled Applications; Air Flow Required for Dissipation of Radiated Gen-set Heat for a Max of 25 °F Rise: *m3/min (SCFM) 138 (4,873) 1,416 (49,997) 525 (18,414) * Air density = 1.184 kg/m3 (0.0739 lbm/ft3) // Fuel System Fuel Supply Connection Size Fuel Return Connection Size Maximum Fuel Lift: m (ft) Recommended Fuel Total Fuel Flow: L/hr (gal/hr) #16 JIC 37° Female 1” NPT Adapter Provided #16 JIC 37° Female 1” NPT Adapter Provided 1 (3) Diesel #2 960 (254) // Exhaust System Gas Temp. (Stack): °C (°F) Gas Volume at Stack Temp: m3/min (CFM) Maximum Allowable Back Pressure: kPa (in. H20) 425 (797) 336 (11,866) 8.5 (34.1) 4 / // / MTU 12V4000 DS1250 (1250 kWe) - Standby WEIGHTS AND DIMENSIONS Drawing above for illustration purposes only, based on standard open power 480 volt generator set. Lengths may vary with other voltages. Do not use for installation design. See website for unit specific template drawings. System Open Power Unit (OPU) Dimensions (L x W x H) 6,170 x 2,260 x 2,900 mm (242.88 x 89 x 114.25 in) Weight (less tank) 13,786 kg (30,392 lb) SOUND DATA Unit Type Level 0: Open Power Unit dB(A) Standby Full Load 91.9 Sound data is provided at 7 m (23 ft). Generator set tested in accordance with ISO 8528-10 and with infinite exhaust. EMISSIONS DATA NOx + NMHC 5.26 CO 0.45 RATING DEFINITIONS AND CONDITIONS PM 0.08 All units are in g/hp-hr and shown at 100% load (not comparable to EPA weighted cycle values). Emission levels of the engine may vary with ambient temperature, barometric pressure, humidity, fuel type and quality, installation parameters, measuring instrumentation, etc. The data was obtained in compliance with US EPA regulations. The weighted cycle value (not shown) from each engine is guaranteed to be within the US EPA Standards. C/F = Consult Factory/MTU Onsite Energy Distributor N/A = Not Available MTU Onsite Energy A Rolls-Royce Power Systems Brand www.mtuonsiteenergy.com Standby ratings apply to installations served by a reliable utility source. The standby rating is applicable to varying loads for the duration of a power outage. No overload capability for this rating. Ratings are in accordance with ISO 8528-1, ISO 3046-1, BS 5514, and AS 2789. Average load factor: ≤ 85%. // Deration Factor: Altitude: Consult your local MTU Onsite Energy Power Generation Distributor for altitude derations. Temperature: Consult your local MTU Onsite Energy Power Generation Distributor for temperature derations. // © MTU Onsite Energy. Subject to alteration due to technological advances. OE 23 693 (77 3E) 2015-07 Weights and dimensions are based on open power units and are estimates only. Consult the factory for accurate weights and dimensions for your specific generator set.