Power your business even when the lights go out!
Price includes handling and tax. Can be purchased "open", price on this model is for generator with housing. Shipping and Installation separate. May need additional items to complete generator package, (Does not include transfer switch) call for details. LP Gas or Natural Gas unit.
SP-250 Standby Generator 25KW
- All generator sets are USA prototype built and thoroughly tested. Production models are USA factory built and 100% load tested.
- All generator sets meet NFPA-110. Level 1, when equipped with the necessary accessories and installed per NFPA standards.
- All generators are UL-1446 certified, and UL-2200 certified.
- Solid state, frequency compensated voltage regulation is standard.
- Electronic engine governor for precise isochronous frequency regulation.
- DEEP SEA 7420 digital controller allows programming to basic engine functions in the field. Controller has stop-manual-auto mode and engine shutdowns, signaled by full text LCD indicators.
- Heavy Duty 100%-125% rated Circuit Breaker is standard on all gen-sets.
- All generator set control systems components and accessories provide a 1-year limited warranty at time of initial start-up. Generators and engines are governed by separate warranties.
- “OPEN” Generator Sets: There is no enclosure, so gen-set must be placed within a weather protected area, un-inhabited by humans or animals, with proper ventilation. Silencer is not supplied, as installation requirements are not known. However, this item is available as optional equipment.
- “LEVEL 2” Aluminum Housing: Full weather protection and superior sound attenuation for specific low noise applications. Critical grade silencer is standard.
Manufacturer .................................. Marathon Electric Generators Model & Type............283CSL1517 4 Pole, 4 Lead, Single Phase ......... 283CSL1706 4 Pole, 12 Lead re-connectable, Three Phase ......................283PSL5250 4 Pole, 4 lead, 600V, Three Phase Exciter .....................................................Brushless, shunt excited Voltage Regulator .......................................Solid State, HZ/Volts Voltage Regulation ................................1⁄2%, No load to full load Frequency................................Field convertible, 60 HZ to 50 HZ Frequency Regulation .............1⁄2% (1⁄2 cycle, no load to full load) Unbalanced Load Capability.....................100% of standby amps Total Stator and Load Insulation...........................Class H, 180°C Temperature Rise ......... 130°C R/R, standby rating @ 40°C amb. 1 Ø Motor Starting @ 30% Voltage Dip (240v)...............60 kVA 3 Ø Motor Starting @ 30% Voltage Dip (208-240V).......55 kVA 3 Ø Motor Starting @ 30% Voltage Dip (480V-600V)....75 kVA Bearing ..................................................... 1, Pre-lubed and sealed Coupling.........................................................Direct flexible disc. Total Harmonic Distortion ............... Max 31⁄2% (MIL-STD705B) Telephone Interference Factor ............Max 50 (NEMA MG1-22) Deviation Factor................................. Max 5% (MIL-STD 405B) Ltd. Warranty Period.............. 24 Months from date of start-up or .......................................................1000 hours use, first to occur.
• World Renown Marathon Electric Generator having UL-1446 certification.
• Full generator protection with Deep Sea 7420 controller, having UL-508 certification.
• Automatic voltage regulator with over-excitation, under- frequency compensation, under-speed protection, and EMI filtering. Entire solid-state board is encapsulated for moisture protection.
• Generator power ratings are based on temperature rise, measured by resistance method, as defined in MIL-STD 705C and IEEE STD 115, Method 6.4.4.
• Power ratings will not exceed temperature rise limitation for class H insulation as per NEMA MG1-22.40.
• Insulation resistance to ground, exceeds 1.5 meg-ohm.
• Stator receives 2000 V. hi-potential test on main windings, and rotor windings receive a 1500 V. hi-potential test, as perMIL-STD 705B.
• Full amortisseur windings with UL-1446 certification.
• Complete engine-generator torsional acceptance, confirmedduring initial prototype testing.
• Full load testing on all engine-generator sets, before shipping. • Self ventilating and drip-proof & revolving field designManufacturer........................ PSI (Power Solutions International) Model and Type ........................................................2.4L, 4 cycle Aspiration.......................................................................... Natural Cylinder Arrangement...................................4 Cylinders, In-Line Displacement Cu. In. (Liters).......................................143.5 (2.4) Bore & Stroke In. (Cm.)...........................3.4 x 3.93 (8.65 x 10.0) Compression Ratio ................................................................ 9.5:1 Main Bearings & Style...................................................4, Babbitt Cylinder Head .................................................................Cast Iron Pistons..........................................................4, Silicon Aluminum Crankshaft .................................................................Nodular Iron Exhaust V alve ........................................................... Forged Steel Governor ....................................................................... Electronic Frequency Reg. (no load-full load) ............................ Isochronous Frequency Reg. (steady state) ............................................± 1/4% Air Cleaner.........................................Dry, Replaceable Cartridge Engine Speed................................................1800 rpm Piston Speed, ft/min (m./min) .............................1080 (329) Max Power, bhp (kwm) Standby/LPG.......... .................. 46 (34) Max Power, bhp (kwm) Standby/NG............ .................. 42 (31) Ltd. Warranty Period....... 12 Months or 2000 hrs., first to occur
FUEL SYSTEM
Type ................................LPG or NAT. GAS, Vapor Withdrawal Fuel Pressure (kpa), in. H2O* .........................(1.74-2.74), 7”-11” Secondary Fuel Regulator ................... NG or LPG Vapor System Auto Fuel Lock-Off Solenoid ........................ Standard on all sets Fuel Supply Inlet Line.....................................................1” NPTF * Measured at gen-set fuel inlet, downstream of any dry fuel accessories.
FUEL CONSUMPTION
LP GAS: FT3/HR (M3/HR)
STANDBY
100% LOAD
173 (4.9)
75% LOAD
139 (3.9)
50% LOAD
108 (3.0)
LPG = 2500 BTU X FT3 = Total BTU/HR
LPG Conversion: 8.50 FT3 = 1 LB. : 36.4 FT3 = 1 GAL.NAT. GAS: FT3/HR (M3/HR)
STANDBY
100% LOAD
439 (12.4)
75% LOAD
342 (9.6)
50% LOAD
242 (6.8)
NG = 1000 BTU X FT3 = Total BTU/HR
OIL SYSTEM
Type ......................................................................... Full Pressure Oil Pan Capacity qt. (L) ...................................................4.5 (4.2) Oil Pan Cap. W/ filter qt. (L) ..............................................5 (4.7) Oil Filter .................................................. 1, Replaceable Spin-On
ELECTRICAL SYSTEM _____________________
Ignition System .............................................................Electronic Eng. Alternator and Starter:
Ground .....................................................................Negative V olts DC ............................................................................ 12 Max. Amp Output of Alternator......................................... 70
Recommended Battery to -18°C (0°F): .. 12 VDC, Size BCI# 24F Max Dimensions: ..10 3/4" lg X 6 3/4” wi X 9" hi, with standard round posts. Min. output at 600 CCA. Battery tray (max. dim. at 12”lg x 7”wi), hold down straps, battery cables, and battery charger, is furnished. Installation of (1) starting battery is required, with possible higher AMP/HR rating, as described above, if normal environment averages -13°F (-25°C) or cooler.
COOLING SYSTEM
Type of System ................................ Pressurized, closed recovery Coolant Pump .....................................Pre-lubricated, self-sealing Cooling Fan Type (no. of blades) .................................Pusher (6) Fan Diameter inches (cm) ................................................ 18" (46) Ambient Capacity of Radiator °F (°C)..........................125 (51.6) Engine Jacket Coolant Capacity Gal (L)..........................1.8 (6.8) Radiator Coolant Capacity (including engine)Gal. (L)..5.0 (18.9) Maximum Restriction of Cooling Air Intake
and discharge side of radiator in. H20 (kpa).................... .5 (.125)
Water Pump Capacity gpm (L/min).......18.2 (69)..........15.5 (59)
Heat Reject Coolant : Btu/min (kw) ............. ................1940 (34)
Low Radiator Coolant Level Shutdown.....................Standard
Note: Coolant temp. shut-down switch setting at 220°F (104°C) with 50/50 (water/antifreeze) mix.
COOLING AIR REQUIREMENTS
Combustion Air, cfm (m3/min)........................... ....64 (1.8) Radiator Air Flow cfm (m3/min)................... ................2500 (72) Heat Rejected to Ambient:
Engine: kw (btu/min) ............................. .................. 9 (520) Alternator: kw (btu/min)........................ .................4.5 (250)
EXHAUST SYSTEM
Exhaust Outlet Size....................................................................2" Max. Back Pressure in. hg (KPA) .................................3.0 (10.2) Exhaust Flow, at rated kw: cfm (m3/min) .......................248 (7.0) Exhaust Temp., at rated kw: °F (oC) ............................1056 (569) Engines are EPA certified for LPG and Natural Gas.
SOUND LEVELS MEASURED IN dB(A)
Level 2, Critical Silencer .........................68............ ........... 62
Level 3, Hospital Silencer ........................................ ........... 58
Note: Open sets (no enclosure) have silencer system choices due to unknown job-site applications. Level 2 enclosure has installed critical silencer with upgrade to Level 3 hospital silencer. Sound tests are averaged from several test points and taken at 23 ft. (7 m) from source of noise at normal operation.
DERATE GENERATOR FOR ALTITUDE
3% per 1000 ft. (305m) above 3000 ft. (914m) from sea level
DERATE GENERATOR FOR TEMPERATURE
2% per 10°F (5.6°C) above 104°F (40°C)
DIMENSIONS AND WEIGHTS Open Set..................Level 2 Enclosure
Length in (cm).......................... 68 (173) ...... ................. 82 (208)
Width in (cm) ............................ 36 (91) ....... .................. 36 (92)
Height in (cm) ........................... 34 (86) ....... ................. 47 (119)
1 Ø Net Weight lbs (kg) ......... 1050 (476) .... ..............1460 (662)
1 Ø Ship Weight lbs (kg) ....... 1130 (512) .... ..............1600 (725)
3 Ø Net Weight lbs (kg) ......... 1037 (470) .... ..............1447 (656)
3 Ø Ship Weight lbs (kg) ....... 1117 (506) .... ..............1587 (720)
CONTROL PANEL:
Deep Sea 7420 digital microprocessor with
logic allows programming in the field. Controller has:• STOP-MANUAL-AUTO modes and automatic engine shutdowns, signaled by full text LCD indicators:
Low oil pressure
• High engine temp
Low Radiator Level
Three auxiliary alarms Battery fail alarmEngine fail to start
Engine over speed
Engine under speed
Over & under voltageAlso included is tamper-proof engine hour meter
ENGINE:
Full flow oil filter • Air filter • Oil pump • Solenoid type starter motor • Hi-temp radiator • Jacket water pump
• Thermostat • Pusher fan and guard • Exhaust manifold
• 12 VDC battery charging alternator • Flexible exhaust connector • ”Isochronous” duty, electronic governor • Secondary dry fuel regulator • Dry fuel lock-off solenoid • Vibration isolators • Closed coolant recovery system with 50/50 water to anti-freeze mixture • flexible oil & radiator drain hose.AC GENERA TOR SYSTEM:
AC generator • Shunt excited • Brushless design • Circuit Breaker installed and wired to gen-set • Direct connection to engine with flex disc • Class H, 180°C insulation • Self ventilated • Drip proof construction • UL certified
VOLTAGE REGULATOR:
1⁄2% Voltage regulation • EMI filter • Under-speed protection • Over-excitation protection • total encapsulation
DC ELECTRICAL SYSTEM:
Battery tray • Battery cables • Battery hold down straps • 2-stage battery float charger with maintaining & recharging automatic charge stages
WEA THER/SOUND PROOF ALUMINUM HOUSING CORROSION RESISTANT PROTECTION CONSISTING OF:
• 9 Heated And Agitated Wash Stages • Zinc Phosphate Etching-coating Stage • Final Baked On Enamel Powder Coat • 18/8 Stainless Steel Hardware