DIESEL GENERATOR SET MTU 4R0120 DS125 125 kWe /60 Hz /Standby 208 - 600V Reference MTU 4R0120 DS125 (111 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 240V 1 1 60 125 125 521 240V 1 1 60 125 125 521 208V 3 0.8 60 125 156.25 434 240V 3 0.8 60 125 156.25 376 380V 3 0.8 60 125 156.25 237 480V 3 0.8 60 125 156.25 188 600V 3 0.8 60 125 156.25 150 184 196 323 323 191 430 334 431PSL6208 130 °C/40 °C 431PSL6224 130 °C/40 °C 363CSL1607 130 °C/40 °C 363CSL1607 130 °C/40 °C 431CSL6202 130 °C/40 °C 363CSL1607 130 °C/40 °C 363PSL1658 130 °C/40 °C 12 LEAD ZIG-ZAG 4 LEAD 12 LEAD LOW WYE 12 LEAD HI DELTA 12 LEAD HI WYE 12 LEAD HI WYE 4 LEAD WYE CERTIFICATIONS AND STANDARDS // Emissions – EPA Tier 3 Certified // Generator set is designed and manufactured in facilities certified to standards ISO 9001:2008 and ISO 14001:2004 // UL 2200 / CSA – Optional – UL 2200 Listed – CSA Certified – CE Marking Provided // 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 2 / // / MTU 4R0120 DS125 (125 kWe) - Standby STANDARD FEATURES* MTU Onsite Energy is a single source supplier Global Product Support 2 Year Standard Warranty OM924LA Diesel Engine - 4.8 Liter Displacement - 4-Cycle // Engine-generator resilient mounted // Complete Range of Accessories // // // // Generator - Brushless, Rotating Field Generator - 2/3 Pitch Windings - 300% Short Circuit Capability with Optional PMG // 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 Fuel Filter with Water Separator Jacket Water Pump Thermostat Blower Fan & Fan Drive Radiator - Unit Mounted Electric Starting Motor - 12V Governor – Electronic Isochronous Base - Formed Steel SAE Flywheel & Bell Housing Charging Alternator - 12V 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 Self-Ventilated and Drip-Proof Superior Voltage Waveform Solid State, Volts-per-Hertz Regulator ±1% Voltage Regulation No Load to Full Load 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 100% of Rated Load - One Step 5% Maximum Total Harmonic Distortion // Digital Control Panel(s) Digital Metering Engine Parameters Generator Protection Functions Engine Protection SAE J1939 Engine 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 4R0120 DS125 (125 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 // 15.8 (4.2) 7 (1.8) 20.8 (5.5) Electrical Electric Volts DC Cold Cranking Amps Under -17.8 °C (0 °F) // Mercedes-Benz OM924LA 4-Cycle 4-Inline 4.8 (293) 10.6 (4.17) 13.6 (5.35) 17.5:1 1,800 MR2 / ADM3 147 (197) ±0.25% Dry Liquid Capacity (Lubrication) Total Oil System: L (gal) Engine Jacket Water Capacity: L (gal) System Coolant Capacity: L (gal) // // 12 950 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) 28.8 (7.6) 21.6 (5.7) 14.8 (3.8) * Based on 363CSL1607 480 Volt generator set // Cooling - Radiator System Ambient Capacity of Radiator: °C (°F) Maximum Allowable Static Pressure on Rad. Exhaust: kPa (in. H20) Water Pump Capacity: L/min (gpm) Heat Rejection to Coolant: kW (BTUM ) Heat Rejection to Air to Air: kW (BTUM ) Heat Radiated to Ambient: kW (BTUM ) Fan Power: kW (hp) // 50 (122) 0.12 (0.5) 143 (37) 54 (3,071) 28.5 (1,621) 29.3 (1,666) 3.3 (4.4) 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) 9.3 (328) 209 (7,381) 107 (3,779) Fuel System * Air density = 1.184 kg/m3 (0.0739 lbm/ft3) Fuel Supply Connection Size Fuel Supply Hose Size Fuel Return Connection Size Fuel Return Hose Size Maximum Fuel Lift: m (ft) Recommended Fuel Total Fuel Flow: L/hr (gal/hr) -6 JIC 3/8“ ID -6 JIC 3/8“ ID 2.7 (9) Diesel #2 328.2 (86.7) // Exhaust System Gas Temp. (Stack): °C (°F) Gas Volume at Stack Temp: m3/min (CFM) Maximum Allowable Back Pressure: kPa (in. H20) 470 (877) 26.3 (929) 6.5 (26) 4 / // / MTU 4R0120 DS125 (125 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) 2,336 x 1,121 x 1,422 mm (92 x 44.13 x 56 in) Weight (less tank) 1,407 kg (3,095 lb) SOUND DATA Unit Type Level 0: Open Power Unit dB(A) Standby Full Load 83.1 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 C/F CO C/F RATING DEFINITIONS AND CONDITIONS PM C/F 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 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 23 925 (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.