APD-ULM1250 product details and specifications:

General Characteristics 

• Model Name: APD-ULM1250 

• Engine Make: Mitsubishi 

• Engine Model: S12R-Y2PTAW-1 

• Alternator Make: Stamford 

• Control Panel Make & Model: DSE 7320 

• Frequency & Speed: 60Hz, 1800rpm 

• Enclosure Make & Model: AKSA AUL10 / ISO Cont. 

Genset Rating 

• Voltage 480/277V: 1250 kW Standby, Power Factor 0.8, Standby Current 1880A 

• Voltage 600/347V: 1250 kW Standby, Power Factor 0.8, Standby Current 1504A 

Engine Data 

• Manufacturer: Mitsubishi 

• Model: S12R-Y2PTAW-1 

• Displacement & Cylinders: 49.03 L / 12 Cylinders 

• Engine Speed: 1800 rpm 

• Engine Standby Power wo/Fan: 1403 kW 

• Engine Prime Power wo/Fan: 1275 kW 

• Aspiration: Turbo-charged, InterCooler 

• Compression Ratio: 14.5 : 1 

• Bore / Stroke: 170 mm / 180 mm 

• Break Mean Effective Pressure: 276 psi 

• Mean Piston Speed: 10.8 m/s 

• Allowable Fan Loss Power: 50 kW 

• Max Regenerative Power Absorption Capacity wo Fan: 144 kW 

• Steady State Speed Stability: ±0.25% 

• Max Over Speed Capacity: 2100 rpm 

• Wet Weight – Engine Only: 12,249 lbs. 

Fuel Consumption 

• Standby Power (110%): 103.4 gal/h 

• Prime Power (100%): 90.6 gal/h 

• Prime Power (75%): 68.2 gal/h 

• Prime Power (50%): 46.3 gal/h 

• Prime Power (25%): 27.5 gal/h 

Electric System 

• Battery Charge Alternator: 24V / 30Ah 

• Starting Motor Capacity: 7.5 kW x 2 

• Battery Qty, Rating, CCA: 4 x 200Ah, 1150CCA 

Cooling System 

• Radiator Cooling System Type: Closed Circuit 

• Radiator Ambient Temp: > 50°C 

• Coolant Capacity, Engine Only (Jacket & Air Cooler): 34.3 gal 

• Max Coolant Temp at Engine Outlet: 208°F 

• Thermostat, Start – Fully Open: 160–185°F 

Exhaust System 

• Exhaust Outlet Size: 202 mm 

• Max Allowable Back Pressure: 600 mmH2O 

• Exhaust Gas Flow: 356 m³/min 

Air Intake System 

• Intake Air Flow: 135 m³/min 

• Max Intake Air Restriction (Clean Element): 400 mmH2O 

• Air Filter Type: Dry Paper Element 

Fuel System 

• Fuel Injector: Mitsubishi PS6 Type x 2 

• Max Suction of Feed Pump: 75 mmHg 

• Max Static Head of Return & Leak Pipe: 150 mmHg 

Lubrication System 

• Total System Capacity: 47.6 gal 

• Sump Capacity Max / Min: 40 gal / 28.5 gal 

• Max Oil Temp: 230°F 

• Oil Pressure at Rated Speed: 71–93 psi 

Alternator Data 

• Manufacturer: Stamford 

• Standards: BS EN 60034 

• Control System: PMG 

• A.V.R.: MX321 

• Voltage Regulation: ±0.5% 

• Insulation System: Class H 

• Protection: IP23 

• Rated Power Factor: 0.8 

• Stator Winding: Double Layer Concentric 

• Winding Pitch: Two Thirds 

• Winding Leads: 12 

• Telephone Interference: THF < 2% 

• Waveform Distortion: No Load < 1.5% 

• Maximum Over Speed: 2250 rev/min 

Controller Data 

• Manufacturer: DSE 

• Model: 7320 

• Type: Auto Mains Failure Control 

Controller Features & Benefits 

• Microprocessor controlled 

• License free PC Software 

• IP65 rating offers increased resistance to water ingress 

• Modules can be integrated to building management systems 

• Real time clock provides accurate event log 

• Four line back-lit LCD text display 

• Five key menu navigation 

• Front panel editing with PIN protection 

• Support up to three remote display modules 

• Configurable timers and alarms 

• Multiple date and timer scheduler 

• Integral PLC editor 

• 'Protections disabled' feature 

• kW & kVAr protection 

• Reverse power (kW & kVAr) protection 

• Power monitoring (kWh, kVAr, kVAh, kVArh) 

• Load switching (load shedding and dummy load outputs) 

• Unbalanced load protection 

• Independent Earth Fault trip 

• Fully configurable via DSE Configuration Suite PC Software 

• SCADA monitoring via DSE Configuration Suite PC Software 

Battery Charger & Electrical System Data 

• Manufacturer: ComAp 

• Model: InteliCharger 

• Input Voltage: 85V ~ 264V AC 

• Output Voltage / Current: 27.2V Float / 2.5A pk 

Jacket Water Heater Data 

• Manufacturer: Hotstart 

• Model: CSM10902-000 

• Input Voltage: 240V 

• Power: 9000W 

Enclosure Features 

• Heavy Duty Steel Structure 

• E-Stop on Enclosure 

• Control Panel Eliminated from Engine Vibrations 

• Standard Sound Attenuation Foam 

• Plastic Covered Corrosion Resistant Locks & Hinges 

• External Mounted Exhaust System with Rain Cap 

• Modular Design 

• Removable Base Frame Lifting Hooks 

• Oil & Coolant Drain Ports 

• Easy Access for Maintenance 

Open Skid Gen-Set Dimensions 

• Length: 210.2 in 

• Width: 89 in 

• Height: 95.9 in 

• Dry Weight: 27,558 lbs. 

Enclosed Gen-Set Dimensions – Canopy 

• Length: 296 in 

• Width: 89 in 

• Height: 165 in (101 in w/o silencer) 

• Dry Weight: 34,000 lbs. 

• Sound Pressure @ 7 meters: 84 dB(A) (Calculated Value) 

Enclosed Gen-Set Dimensions – ISO Container 

• Length: 480 in 

• Width: 96 in 

• Height: 181 in (114 in w/o silencer) 

• Dry Weight: 57,800 lbs. 

• Sound Pressure @ 7 meters: 79 dB(A) (Calculated Value) 

Fuel Tank – UL142 Listed Base Design 

• Canopy 24hr: 2500 gal, Dimensions 320 / 89 / 31 in, Weight 7,900 lbs. 

• Canopy 48hr: 5000 gal, Dimensions 545 / 89 / 36 in, Weight 12,300 lbs. 

• ISO Container 24hr: 2500 gal, Dimensions 500 / 106.5 / 28 in, Weight 9,800 lbs. 

• ISO Container 48hr: 4960 gal, Dimensions 500 / 106.5 / 34.5 in, Weight 12,800 lbs. 

Standard Features & Accessories 

• UL2200 Certification 

• Heavy Duty Steel Base Frame 

• PMG w/MX321 AVR 

• Engine Jacket Water Heater 

• Battery and Battery Rack 

• Battery Charger 

• Anti Vibration Pads between Engine/Alternator & Base Frame 

• Critical Grade Silencer Inside Enclosure 

• Residential Grade Silencer Set for Open Skid Sets 

• Exhaust outlet rain cap and radiator fill cap 

• Sound Absorb Foam Material for Enclosure 

• Emergency Stop Button 

• Oil Drain Valve 

• Coolant Drain Valve 

• Jacket Water Heater Isolation Valves 

• Flex Fuel Lines 

• Air Filter Restriction Gauge 

• Engine Manifold Cover 

• Turbocharger Cover 

• Protection Covers for Rotating Parts 

• Exhaust Insulation Cover 

• Enclosure DC Light 

• Operations Manual 

• 24 Months / 2000 hours Limited Standby Warranty 

Optional Accessories 

• Main Line CB (3 / 4 Poles – 80% / 100% rated) 

• Upsize Alternator 

• Digital AVR 

• Anti-condensation Heater 

• Sub Base Fuel Tank (UL142 / UL2085) 

• Fuel Level Display & Alarm on Controller 

• Low / High Fuel Alarms 

• Fuel Water Separator Filter 

• Auto Fuel Fill Control System 

• Oil Temperature Display on Controller 

• Manual Speed Adjust Rheostat 

• Manual Voltage Adjust Rheostat 

• Remote Annunciator Panel 

• Remote Control & Monitoring Panel 

• Advanced SMS Messaging 

• Control Panel Heater 

• Battery Disconnect Switch 

• Battery Heater 

• Battery Charger 10/20 Amp 

• Shunt Trip / Aux Contacts 

• Spring Anti-vibration Isolators 

• Automatic Transfer Panel (ATS) 

• 5 Years / 2000 hours Limited Comprehensive Warranty 

Codes & Standards 

• Designed and manufactured in a facility certified to ISO9001 standards 

• Designed and manufactured in a facility certified to ISO14001:2015 standards 

• AKSA Power Generation provides single source responsibility for the generator set & accessories 

• Prototype tested and production tested according to the UL test program 

• Meets NFPA 70, 99, 110, 37 Level 1 when equipped with the necessary accessories and installed per NFPA standards 

• EPA – Certified for Emergency Stationary Applications

product specifications:

product related documents:

APD-ULM1250.pdf