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Backed by more than 50 years of experience, Siemens gas engines provide energy solutions raging from a bare engine to a complete generation plant. Siemens gas engine are designed and built to provide highly efficient continuous power for co- and tri-generation and peack shaving applications. The Siemens H Engine series represents one of the best ways to reduce your energy cost and your carbon footprint.

Benefits:

  • Incorporates the new, integrated GCS-E control system
  • Highly efficient Miller Cycle combustion
  • Low life cycle cost
  • Designed for intensive, continous duty use
  • High avaibility
  • Standard, interchangeable engine parts (cylinder heads, valves, etc.)
  • Industry-leading fuel flexibility
  • Compact footprint
  • Excellent global/thermal efficiency
  • Low emmissions
Engine Characteristics:

  • Lean burn
  • Miller Cycle, four-stroke
  • Dry exhaust manifolds
  • Turbocharged
  • Two-stage intercooling

Dimensions and other data

Engine Dimensions English Units Metric Units SGE-24HM SGE-42HM SGE-56HM
Width in. mm 72.3 (1,837) 70.3 (1,787) 70.3 (1,787)
Lenght in. mm 111.8 (2,842) 115.7 (2,939) 134.2 (3,409)
Height in. mm 62.8 (1,597) 85.2 (2,165) 85.2 (2,165)
Dry wight lb kg 8.8 (4,000) 13.7 (6,250) 16.5 (7,500)
Genset Dimensions English Units Metric Units SGE-24HM SGE-42HM SGE-56HM
Width in. mm 75.3 (1,913) 0 (0) 72.7 (1,848)
Lenght in. mm 155.5 (3,952) 0 (0) 222.3 (5,648)
Height in. mm 68.4 (1,738) 0 (0) 91.2 (2,319)
Dry wight lb kg 13.7 (6,230) 0 (0) 25.8 (11,735)
Noise emissions*
Engine Noise dB(A) HZ (Frec. Band) SGE-24HM SGE-42HM SGE-56HM
1,500 1,800 1,500 1,800 1,200 1,500 1,800
125 73 67 71 - 71 73 70
250 83 77 81 74 77 83 84
500 85 80 84 88 79 85 82
1,000 88 88 88 83 81 88 86
2,000 92 91 90 90 88 92 92
4,000 89 87 89 87 83 89 88
LpA, å dB(A) 96 94 94 94 90 96 95
Engine Noise dB(A) HZ SGE-24HM SGE-42HM SGE-56HM
63 100 102 105 106 99 102 103
125 121 131 119 129 109 122 125
250 129 133 129 133 115 128 136
500 116 122 116 123 116 122 127
1,000 116 119 115 117 114 119 121
2,000 115 117 113 114 114 117 117
4,000 112 110 111 111 116 112 113
LpA, å dB(A) 130 136 130 135 122 130 137

Notes: Data obtained according to ISO 9614-2 • Data obtained @ 1 m from engine according to UNE-EN ISO-11203:1996
Maximum data standard deviations = ± 4 dB(A)

SGE-24HM & SGE-42HM

Engine Parameters English Units Metric Units SGE-24HM SGE-42HM
Speed rpm 1,500 1,800 1,500 1,800
Engine power bhp kWb 697 (520) 697 (520) 1,395 (1,040) 1,395 (1,040)
Cylinder arrangement In Line 8 V12
Mean effective pressure psi bar 252 (17.4) 210 (14.5) 286 (19.7) 238 (16.4)
Bore inch mm 5.98 (152) 5.98 (152) 6.30 (160) 6.30 (160)
Stroke inch mm 6.50 (165) 6.50 (165) 6.89 (175) 6.89 (175)
Displacement cu.in Litres 1,460 (24.0) 1,460 (24.0) 1,718 (42.2) 1,718 (42.2)
Mean piston speed in/s m/s 325 (8.3) 390 (9.9) 344 (8.8) 413 (10.5)
Compression ratio 11.8:1 11.9:1
Combustion air mass flow lbs/hr kg/h 4,343 (1,970) 5,313 (2,410) 10,516 (4,980) 10,670 (4,840)
Packaged ventilation air flow (2) scfm m3/h 21,424 (36,400) 21,424 (36,400) 42,849 (72,800) 42,849 (72,800)
Engine coolant capacity (Main circuit) (3) gal. Litres 21 (80) 21 (80) 63 (240) 63 (240)
Engine coolant capacity (Aux. circuit) (3) gal. Litres 5 (20) 5 (20) 20 (75) 20 (75)
Lube oil capacity (3) gal. Litres 45 (169) 45 (169) 107 (403) 107 (403)
Lube oil consumption (4) lbs/bhp.hr g/kWh 0.00058 (0.35) 0.00058 (0.35) 0.00025 (0.15) 0.00025 (0.15)
Energy Balance
Generator efficiency (5) (6) % % 96.6 96.2 97.2 96.9
Electrical power (5) (6) kWe kW 502/td> 500 1,011 1,008
Jacket (HT) water heat Btu x 1,000/hr kW 816 (239) 710.2 (208) 1,877.9 (549) 2,009.9 (586)
Intercooler (LT) water heat Btu x 1,000/hr kW 280.0 (82) 338.0 (99) 215.1 (75) 204.9 (60)
Exhaust heat - cooled to 120°C Btu x 1,000/hr kW 829.7 (243) 997.0 (292) 1,628.7 (457) 1,837.0 (538)
Engine radiation heat Btu x 1,000/hr kW 95.6 (28) 136.6 (40) 239.0 (70) 239.0 (70)
Generator radiation heat Btu x 1,000/hr kW 60.4 (18) 67.5 (20) 99.4 (29) 110.1 (32)
Fuel consumption (7) Btu x 1,000/hr kW 4,008.5 (1,174) 4,216.8 (1,235) 8,027.3 (2,342) 8,351.7 (2,446)
Mechanical efficiency % 44.3 42.1 44.2 42.5
Electrical efficiency % 42.8 40.5 43.0 41.2
Thermal efficiency % 48 48.5 46.4 48.4
Total efficiency % 90.8 89.0 89.4 89.6
System Parameters
Jacket (HT) water temperature max. °F °C 194 (90) 194 (90) 194 (90) 194 (90)
Jacket (HT) water flow rate min. gpm L/hr 145 (33) 128 (29) 167 (57) 181 (41)
Jacket (HT) water flow rate max. gpm L/hr 264 (60) 264 (60) 308 (70) 308 (70)
Intercooler stages Single Double
Intercooler (LT) coolant temperature °F °C 131 (55) 131 (55) 131 (55) 131 (55)
Intercooler (LT) coolant flow rate min. gpm L/hr 88 (20) 110 (25) 88 (20) 110 (25)
Intercooler (LT) coolant flow rate max. gpm L/hr 132 (30) 132 (30) 132 (30) 132 (30)
Exhaust manifold type Dry Dry
Exhaust temperature °F °C 914 (490) 905 (485) 792 (422) 851 (455)
Exhaust mass flow wet lbs/hr kg/h 4,519 (2,050) 5,512 (2,500) 10,891 (4,940) 11,067 (5,020)
Exhaust backpressure max. psi mbar 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45)
Maximum pressure loss in front of air cleaner psi mbar 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5)
Fuel pressure range psi mbar 0.73 - 3.48 (50 - 240) 0.73 - 3.48 (50 - 240)
Starter battery 2x12V, capacity required Ampere-hour 280 280
Emissions (8)
NOx g/bhp.hr <1.1 <1 <1.1 <1
CO g/bhp.hr <2.2 <2.2 <2.2 <2.2
THC (in C1 base) g/bhp.hr <4.3 <4.3 <4.3 <4.3
NMHC (in C1 base) g/bhp.hr <0.7 <0.7 <0.7 <0.7

SGE-56HM

Engine Parameters English Units Metric Units SGE-56HM
Speed rpm 1,200 1,500 1,800
Engine power bhp kWb 1,395 (1,040) 1,663 (1,240) 1,810 (1,350)
Cylinder arrangement V16
Mean effective pressure psi bar 268 (18.5) 256 (17.6) 232 (16.0)
Bore inch mm 6.30 (160) 6.30 (160) 6.30 (160)
Stroke inch mm 6.89 (175) 6.89 (175) 6.89 (175)
Displacement cu.in Litres 3,436 (56.3) 3,436 (56.3) 3,436 (56.3)
Mean piston speed in/s m/s 276 (7.0) 344 (8.8) 413 (10.5)
Compression ratio 11.9:1
Combustion air mass flow lbs/hr kg/h 10,847 (4,920) 12,787 (5,800) 13,955 (6,330)
Packaged ventilation air flow (2) scfm m3/h 42,849 (72,800) 51,089 (86,800) 55,621 (94,500)
Engine coolant capacity (Main circuit) (3) gal. Litres 69 (260) 69 (260) 69 (260)
Engine coolant capacity (Aux. circuit) (3) gal. Litres 20 (75) 20 (75) 20 (75)
Lube oil capacity (3) gal. Litres 111 (419) 111 (419) 111 (419)
Lube oil consumption (4) lbs/bhp.hr g/kWh 0.00025 (0.15) 0.00025 (0.15) 0.00025 (0.15)
Energy Balance
Generator efficiency (5) (6) % % 96.8 97.1 96.9
Electrical power (5) (6) kWe kW 1,007/td> 1,204 1,308
Jacket (HT) water heat Btu x 1,000/hr kW 2,035.0 (596) 2,444.7 (714) 2,448.1 (717)
Intercooler (LT) water heat Btu x 1,000/hr kW 198.0 (58) 269.7 (79) 283.4 (83)
Exhaust heat - cooled to 120°C Btu x 1,000/hr kW 1,591.1 (466) 1,888.2 (553) 2,506.2 (734)
Engine radiation heat Btu x 1,000/hr kW 225.4 (66) 221.9 (65) 286.8 (84)
Generator radiation heat Btu x 1,000/hr kW 113.6 (33) 122.8 (36) 142.9 (42)
Fuel consumption (7) Btu x 1,000/hr kW 8,126.3 (2,380) 9,683.3 (2,836) 10,816.9 (3,168)
Mechanical efficiency % 43.7 43.7 42.6
Electrical efficiency % 42.3 42.5 41.3
Thermal efficiency % 47.1 47.5 48.4
Total efficiency % 89.4 90.0 89.7
System Parameters
Jacket (HT) water temperature max. °F °C 194 (90) 194 (90) 194 (90)
Jacket (HT) water flow rate min. gpm L/hr 181 (70) 220 (50) 220 (50)
Jacket (HT) water flow rate max. gpm L/hr 308 (70) 308 (70) 308 (70)
Intercooler stages Double
Intercooler (LT) coolant temperature °F °C 131 (55) 131 (55) 131 (55)
Intercooler (LT) coolant flow rate min. gpm L/hr 66 (15) 88 (20) 110 (25)
Intercooler (LT) coolant flow rate max. gpm L/hr 132 (30) 132 (30) 132 (30)
Exhaust manifold type Dry
Exhaust temperature °F °C 763 (406) 766 (408) 878 (470)
Exhaust mass flow wet lbs/hr kg/h 11,222 (5,090) 13,250 (6,010) 14,462 (6,560)
Exhaust backpressure max. psi mbar 0.65 (45) 0.65 (45) 0.65 (45)
Maximum pressure loss in front of air cleaner psi mbar 0.073 (5) 0.073 (5) 0.073 (5)
Fuel pressure range psi mbar 0.73 - 3.48 (50 - 240)
Starter battery 2x12V, capacity required Ampere-hour 280
Emissions (8)
NOx g/bhp.hr <2 <1.1 <2
CO g/bhp.hr <2.2 <2.2 <2.2
THC (in C1 base) g/bhp.hr <4.3 <4.3 <4.3
NMHC (in C1 base) g/bhp.hr <0.7 <0.7 <0.7

1) MN-80. For other gas types, contact a sales representative
2) Assumes intake air flow at delta T = 5ºC including combustion air
3) Not Including pipes and heat exchangers
4) Mean lube oil consumption between maintenance steps
5) At 50 Hz, U = 0.4 kV, power factor = 1
6) At 60 Hz, U = 0.48 kV, power factor = 1
7) With a tolerance of + 5 %
8) Lower emission engines are available; consult a sales representative
for performance data
– Engine performance data acc. to ISO 3046/1
– The values given in this data sheet are for information purposes
only and not binding

Speed: 1,200/1,500/1,800 rpm
Generator frequency: 50/60 Hz
Applicable gas types: Natural gas.
Minimum methane number (1): 80

SGE-18SL & SGE-24SL

Engine Parameters English Units Metric Units SGE-18SL SGE-24SL
Speed rpm 1,200 1,500 1,800 1,200 1,500 1,800
Engine power bhp kWb 338 (252) 422 (315) 469 (350) 449 (335) 562 (419) 607 (453)
Cylinder arrangement In Line 6 In Line 8
Mean effective pressure psi bar 203 (14.0) 203 (14.0) 188 (13.0) 203 (14.0) 203 (14.0) 183 (12.6)
Bore inch mm 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152)
Stroke inch mm 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165)
Displacement cu.in Litres 1,095 (18.0) 1,095 (18.0) 1,095 (18.0) 1,460 (24.0) 1,460 (24.0) 1,460 (24.0)
Mean piston speed in/s m/s 260 (6.6) 325 (8.3) 390 (9.9) 260 (6.6) 325 (8.3) 390 (9.9)
Compression ratio 11.6:1 11.6:1
Combustion air mass flow lbs/hr kg/h 2,888 (1,310) 3,483 (1,580) 4,012 (1,820) 3,792 (1,720) 4,586 (2,080) 4,806 (2,180)
Packaged ventilation air flow (2) scfm m3/h 10,383 (17,640) 12,978 (22,050) 14,420 (24,500) 13,802 (23,450) 17,263 (29,330) 18,664 (31,710)
Engine coolant capacity (Main circuit / Aux circuit) (3) gal. Litres 19/7 (70/25) 19/7 (70/25) 19/7 (70/25) 24/7 (90/25) 24/7 (90/25) 24/7 (90/25)
Lube oil capacity gal. Litres 23 (86) 23 (86) 23 (86) 31 (116) 31 (116) 31 (116)
Lube oil consumption (4) lbs/bhp.hr g/kWh 0.00058 (0.35) 0.00058 (0.35) 0.0058 (0.35) 0.00058 (0.35) 0.00058 (0.35) 0.00058 (0.35)

1) Natural Gas MN80. For other MN consult Siemens Energy
2) Engine performance data acc. to ISO 3046/1 (LHV 38500 KJ/mn
3 – 970 Btu/SCF) for performance on alternate gases consult DR)
3) Assumes intake air flow at delta T = 5ºC including combustion air
4) Not Including pipes and heat exchangers
5) Mean lube oil consumption between maintenance steps

Data is for continuous rating, at sea level, and at an ambient temperature of 77F (25ºC)
Data for special gas and dual gas operation on request.
The values given in this data sheet are for information purposes only and not binding.

SGE-18SL & SGE-24SL

Engine Balance English Units Metric Units SGE-18SL SGE-24SL
Generator Efficiency (5) (6) % % 95.5 96.5 96.1 95.9 96.6 96.1
Electrical power (5) (6) kWe kW 241 304 336 321 405 435
Jacket (HT) water heat Btu x 1,000/hr kW 621.4 (182) 764.8 (224) 829.7 (243) 932.1 (273) 1,058.5 (310) 1,297.5 (380)
Intercooler (LT) water heat Btu x 1,000/hr kW 140 (41) 136.6 (40) 228.8 (67) 184.4 (54) 204.9 (60) 262.9 (77)
Exhaust heat - cooled to 120°C Btu x 1,000/hr kW 331.2 (97) 450.7 (132) 570.2 (167) 539.5 (158) 600.9 (176) 713.6.9 (208)
Engine radiation heat Btu x 1,000/hr kW 34.1 (10) 54.6 (16) 51.2 (15) 51.2 (15) 71.7 (21) 68.3 (20)
Generator radiation heat Btu x 1,000/hr kW 38.7 (11) 37.6 (11) 46.6 (14) 46.9 (14) 48.6 (14) 60.3 (18)
Fuel consumption (7) Btu x 1,000/hr kW 2,130.6 (624) 2,653 (77) 3,073 (900) 3,035.4 (859) 3,592 (1,052) 4,124.6 (1,208)
Mechanical efficiency % 40.4 40.5 38.9 37.5 39.8 37.5
Electrical efficiency % 38.6 39.1 37.4 36.1 38.5 36.0
Thermal efficiency % 51.3 51 53 54.6 51.9 55.1
Total efficiency % 89.8 90.1 90.4 90.7 90.4 91.2

5) At 60 Hz, U = 0.48 kV, power factor = 1
6) At 50 Hz, U = 0.4 kV, power factor = 1
7) With a tolerance of + 5 %

SGE-18SL & SGE-24SL

System Parameters English Units Metric Units SGE-18SL SGE-24SL
Jacket (HT) water temperature max. °F °C 194 (90) 194 (90) 194 (90) 194 (90) 194 (90) 194 (90)
Jacket (HT) water flow rate min/max gpm m3/h 110/364 (25/60) 150/264 (34/60) 150/264 (34/60) 167/264 (38/60) 186/264 (43/60) 233/264 (53/60)
Intercooler stages Single Single
Intercooler (LT) coolant temperature max. °F °C 131 (55) 131 (55) 131 (55) 131 (55) 131 (55) 131 (55)
Intercooler (LT) coolant flow rate min/max gmp m3/h 66/132 (15/30) 88/132 (20/30) 110/132 (25/30) 66/132 (15/30) 88/132 (20/30) 110/132 (25/30)
Exhaust manifold type Wet Wet
Exhaust temperature °F °C 651 (344) 702 (372) 747 (397) 747 (397) 709 (376) 768 (409)
Exhaust mass flow wet lbs/hr kg/h 2,998 (1,360) 3,616 (1,640) 4,167 (1,890) 3,924 (1,780) 4,762 (2,160) 4,982 (2,260)
Exhaust back-pressure max. psi mbar 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45)
Maximum pressure loss in front of air cleaner psi mbar 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5)
Fuel pressure range psi mbar 0.73 - 3.48 (50 - 240) 0.73 - 3.48 (50 - 240)
Starter battery 2x12 V, capacity required Ampere-hour 280 280
Emissions (8) English Units Metric Units SGE-18SL SGE-24SL
NOx g/bhp.hr <1 <1.1 <1 <1 <1.1 <1
CO g/bhp.hr <1.8 <1.8 <1.8 <1.8 <1.8 <1.8
THC (in C1base) g/bhp.hr <3.5 <3.5 <3.5 <3.5 <3.5 <3.5
NMHC (in C1 base) g/bhp.hr <0.7 <0.7 <0.7 <0.7 <0.7 <0.7

8) Lower emission engines are available; contact a sales representative for performance data
– Engine performance data acc. to ISO 3046/1
– The values given in this data sheet are for information purposes only and not binding

SGE-36SL & SGE-48SL

Engine Parameters English Units Metric Units SGE-36SL SGE-48SL
Speed rpm 1,200 1,500 1,800 1,200 1,500 1,800
Engine power bhp kWb 675 (503) 845 (630) 939 (700) 898 (670) 1124 (838) 1215 (906)
Cylinder arrangement V12 V16
Mean effective pressure psi bar 203 (14.0) 203 (14.0) 188 (13.0) 203 (14.0) 203 (14.0) 183 (12.6)
Bore inch mm 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152)
Stroke inch mm 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165)
Displacement cu.in Litres 2,191 (35.9) 2,191 (35.9) 2,191 (35.9) 2,921 (47,9) 2,921 (47,9) 2,921 (47,9)
Mean piston speed in/s m/s 260 (6.6) 325 (8.3) 390 (9.9) 260 (6.6) 325 (8.3) 390 (9.9)
Compression ratio 11.6:1 11.6:1
Combustion air mass flow lbs/hr kg/h 5,578 (2,530) 7,033 (3,190) 7,915 (3,590) 7,250 (3,470) 9,178 (4,163) 9,833 (4,460)
Packaged ventilation air flow (2) scfm m3/h 20,724 (35,210) 25,956 (44,100) 28,848 (49.000) 27,604 (46,900) 34,526 (58,600) 37,328 (63,420)
Engine coolant capacity (Main circuit / Aux circuit) (3) gal. Litres 48/11 (180/40) 48/11 (180/40) 48/11 (180/40) 53/13 (200/50) 53/13 (200/50) 53/13 (200/50)
Lube oil capacity gal. Litres 46 (174) 46 (174) 46 (174) 62 (233) 52 (233) 62 (233)
Lube oil consumption (4) lbs/bhp.hr g/kWh 0.00058 (0.35) 0.00058 (0.35) 0.0058 (0.35) 0.00058 (0.35) 0.00058 (0.35) 0.00058 (0.35)

1) Natural Gas MN80. For other MN consult Siemens Energy
2) Engine performance data acc. to ISO 3046/1 (LHV 38500 KJ/mn
3 – 970 Btu/SCF) for performance on alternate gases consult DR)
3) Assumes intake air flow at delta T = 5ºC including combustion air
4) Not Including pipes and heat exchangers
5) Mean lube oil consumption between maintenance steps

Data is for continuous rating, at sea level, and at an ambient temperature of 77F (25ºC)
Data for special gas and dual gas operation on request.
The values given in this data sheet are for information purposes only and not binding.

SGE-36SL & SGE-48SL

Engine Balance English Units Metric Units SGE-36SL SGE-48SL
Generator Efficiency (6) (7) % % 96.3 96.9 96.7 96.6 97 96.3
Electrical power (6) (7) kWe kW 485 610 677 647 813 873
Jacket (HT) water heat Btu x 1,000/hr kW 1,495,5 (438) 1,765.3 (517) 2,004.3 (587) 2,175 (637) 2,355.9 (690) 2,799.8 (820)
Intercooler (LT) water heat Btu x 1,000/hr kW 99 (29) 99 (29) 143.4 (42) 119.5 (35) 160.5 (47) 177.5 (52)
Exhaust heat - cooled to 120°C Btu x 1,000/hr kW 645.3 (189) 901.4 (264) 1,106.3 (324) 1,051.6 (308) 1,215.5 (356) 1,597.9 (468)
Engine radiation heat Btu x 1,000/hr kW 58.0 (17) 92.2 (27) 102.4 (30) 68.3 (20) 112.7 (33) 112.7 (33)
Generator radiation heat Btu x 1,000/hr kW 62.3 (18) 66.7 (21) 78.9 (23) 77.8 (23) 85.8 (25) 112.9 (33)
Fuel consumption (7) Btu x 1,000/hr kW 4.288,5 (1,256) 5,353.8 (1,568) 6,132.3 (1,796) 6,074.3 (1,779) 7.153.2 (2,095) 8,262.9 (2,420)
Mechanical efficiency % 40 40.2 39 37.7 40 37.4
Electrical efficiency % 38.6 38.9 37.7 36.4 38.8 36.0
Thermal efficiency % 52.2 51.7 53. 55.1 52.2 55.4
Total efficiency % 90.8 90.6 90.8 91.5 91 91.4

1) Natural Gas MN80. For other MN consult Siemens Energy
2) Engine performance data acc. to ISO 3046/1 (LHV 38500 KJ/mn
3 – 970 Btu/SCF) for performance on alternate gases consult DR)
3) Assumes intake air flow at delta T = 5ºC including combustion air
4) Not Including pipes and heat exchangers
5) Mean lube oil consumption between maintenance steps

Data is for continuous rating, at sea level, and at an ambient temperature of 77F (25ºC)
Data for special gas and dual gas operation on request.
The values given in this data sheet are for information purposes only and not binding.

6) At 60 Hz, U = 0.48 kV, power factor = 1
7) At 50 Hz, U = 0.4 kV, power factor = 1
8) With a tolerance of + 5 %
9) Lower emission engines are available, consult Siemens Energy for performance data

SGE-36SL & SGE-48SL

System Parameters English Units Metric Units SGE-36SL SGE-48SL
Jacket (HT) water temperature max. °F °C 194 (90) 194 (90) 194 (90) 194 (90) 194 (90) 194 (90)
Jacket (HT) water flow rate min/max gpm m3/h 132/308 (30/70) 59/308 (36/70) 181/308 (41/70) 194/308 (44/70) 211/308 (48/70) 251/308 (57/70)
Intercooler stages Double Double
Intercooler (LT) coolant temperature max. °F °C 131 (55) 131 (55) 131 (55) 131 (55) 131 (55) 131 (55)
Intercooler (LT) coolant flow rate min/max gmp m3/h 66/132 (15/30) 88/132 (20/30) 110/132 (25/30) 66/132 (15/30) 88/132 (20/30) 110/132 (25/30)
Exhaust manifold type Wet Wet
Exhaust temperature °F °C 655 (346) 698 (370) (738) (392) 729 (387) 712 (378) 815 (435)
Exhaust mass flow wet lbs/hr kg/h 5,776 (2,620) 7,297 (3,310) 8,210 (3,720) 7,937 (3,600) 9,524 (4,320) 10,229 (4,640)
Exhaust back-pressure max. psi mbar 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45)
Maximum pressure loss in front of air cleaner psi mbar 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5)
Fuel pressure range psi mbar 0.73 - 3.48 (50 - 240) 0.73 - 3.48 (50 - 240)
Starter battery 2x12 V, capacity required Ampere-hour 280 280

1) Natural Gas MN80. For other MN consult Siemens Energy
2) Engine performance data acc. to ISO 3046/1 (LHV 38500 KJ/mn
3 – 970 Btu/SCF) for performance on alternate gases consult DR)
3) Assumes intake air flow at delta T = 5ºC including combustion air
4) Not Including pipes and heat exchangers
5) Mean lube oil consumption between maintenance steps

Data is for continuous rating, at sea level, and at an ambient temperature of 77F (25ºC)
Data for special gas and dual gas operation on request.
The values given in this data sheet are for information purposes only and not binding.

6) At 60 Hz, U = 0.48 kV, power factor = 1
7) At 50 Hz, U = 0.4 kV, power factor = 1
8) With a tolerance of + 5 %
9) Lower emission engines are available, consult Siemens Energy for performance data

Emissions (8) English Units Metric Units SGE-36SL SGE-48SL
NOx g/bhp.hr <1 <1.1 <1 <1 <1.1 <1
CO g/bhp.hr <1.8 <1.8 <1.8 <1.8 <1.8 <1.8
THC (in C1base) g/bhp.hr <3.5 <3.5 <3.5 <3.5 <3.5 <3.5
NMHC (in C1 base) g/bhp.hr <0.7 <0.7 <0.7 <0.7 <0.7 <0.7

8) With a tolerance of + 5 %
9) Lower emission engines are available, consult Siemens Energy for performance data

SGE-56SL & SGE-56SM

Engine Parameters English Units Metric Units SGE-18SL SGE-24SL
Speed rpm 1,200 1,500 1,800 1,200 1,500 1,800
Engine power bhp kWb 338 (252) 422 (315) 469 (350) 449 (335) 562 (419) 607 (453)
Cylinder arrangement In Line 6 In Line 8
Mean effective pressure psi bar 203 (14.0) 203 (14.0) 188 (13.0) 203 (14.0) 203 (14.0) 183 (12.6)
Bore inch mm 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152) 5.98 (152)
Stroke inch mm 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165) 6.50 (165)
Displacement cu.in Litres 1,095 (18.0) 1,095 (18.0) 1,095 (18.0) 1,460 (24.0) 1,460 (24.0) 1,460 (24.0)
Mean piston speed in/s m/s 260 (6.6) 325 (8.3) 390 (9.9) 260 (6.6) 325 (8.3) 390 (9.9)
Compression ratio 11.6:1 11.6:1
Combustion air mass flow lbs/hr kg/h 2,888 (1,310) 3,483 (1,580) 4,012 (1,820) 3,792 (1,720) 4,586 (2,080) 4,806 (2,180)
Packaged ventilation air flow (2) scfm m3/h 10,383 (17,640) 12,978 (22,050) 14,420 (24,500) 13,802 (23,450) 17,263 (29,330) 18,664 (31,710)
Engine coolant capacity (Main circuit / Aux circuit) (3) gal. Litres 19/7 (70/25) 19/7 (70/25) 19/7 (70/25) 24/7 (90/25) 24/7 (90/25) 24/7 (90/25)
Lube oil capacity gal. Litres 23 (86) 23 (86) 23 (86) 31 (116) 31 (116) 31 (116)
Lube oil consumption (4) lbs/bhp.hr g/kWh 0.00058 (0.35) 0.00058 (0.35) 0.0058 (0.35) 0.00058 (0.35) 0.00058 (0.35) 0.00058 (0.35)

1) Natural Gas MN80. For other MN consult Siemens Energy
2) Engine performance data acc. to ISO 3046/1 (LHV 38500 KJ/mn
3 – 970 Btu/SCF) for performance on alternate gases consult DR)
3) Assumes intake air flow at delta T = 5ºC including combustion air
4) Not Including pipes and heat exchangers
5) Mean lube oil consumption between maintenance steps

Data is for continuous rating, at sea level, and at an ambient temperature of 77F (25ºC)
Data for special gas and dual gas operation on request.
The values given in this data sheet are for information purposes only and not binding.

SGE-56SL & SGE-56SM

Engine Balance English Units Metric Units SGE-56SL SGE-56SM
Generator Efficiency (5) (6) % % 96.8 97.2 96.3 97.2 96.9
Electrical power (5) (6) kWe kW 763 957 1,028 1,025 1,066
Jacket (HT) water heat Btu x 1,000/hr kW 2,267.2 (664) 2,755.4 (807) 3,086.6 (904) 2,116.9 (320) 2,352.5 (689)
Intercooler (LT) water heat Btu x 1,000/hr kW 136.6 (40) 170.0 (50) 174.1 (51) 218.5 (64) 239.5 (76)
Exhaust heat - cooled to 120°C Btu x 1,000/hr kW 1,055.1 (309) 1,444.3 (423) 1,976.9 (579) 2,168.2 (635) 2,461.8 (721)
Engine radiation heat Btu x 1,000/hr kW 102.4 (30) 119.5 (35) 129.7 (38) 170.7 (50) 187.8 (55)
Generator radiation heat Btu x 1,000/hr kW 86.1 (25) 94.2 (28) 134.8 (39) 100.9 (30) 116.4 (34)
Fuel consumption (7) Btu x 1,000/hr kW 6,675.2 (1,955) 8,379 (2,454) 9,604.8 (2,813) 8,826.3 (2,585) 9,591.1 (2,809)
Mechanical efficiency % 40.3 40.1 37.9 40.8 39.2
Electrical efficiency % 39.0 39.0 36.5 39.7 37.9
Thermal efficiency % 51.8 52.2 54.5 51.0 52.9
Total efficiency % 90.8 91.2 91.1 90.7 90.8

6) At 60 Hz, U = 0.48 kV, power factor = 1
7) At 50 Hz, U = 0.4 kV, power factor = 1
8) With a tolerance of + 5 %

SGE-56SL & SGE-56SM

System Parameters English Units Metric Units SGE-56SL SGE-56SM
Jacket (HT) water temperature max. °F °C 194 (90) 194 (90) 194 (90) 194 (90) 194 (90)
Jacket (HT) water flow rate min/max gpm m3/h 203/308 (46/70) 247/308 (56/70) 277/308 (63/70) 189/308 (43/70) 211/308 (48/70)
Intercooler stages Double Double
Intercooler (LT) coolant temperature max. °F °C 131 (55) 131 (55) 131 (55) 131 (55) 131 (55)
Intercooler (LT) coolant flow rate min/max gmp m3/h 66/132 (15/30) 88/132 (20/30) 110/132 (25/30) 88/132 (20/30) 110/132 (25/30)
Exhaust manifold type Wet Dry
Exhaust temperature °F °C 675 (357) 716 (308) 819 (437) 923 (495) 982 (528)
Exhaust mass flow wet lbs/hr kg/h 8,973 (4,070) 11,222 (5,090) 12,588 (5,710) 11,684 (5,300) 12,192 (5,530)
Exhaust back-pressure max. psi mbar 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45) 0.65 (45)
Maximum pressure loss in front of air cleaner psi mbar 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5) 0.073 (5)
Fuel pressure range psi mbar 0.73 - 3.48 (50 - 240) 0.73 - 3.48 (50 - 240)
Starter battery 2x12 V, capacity required Ampere-hour 280 280
Emissions (8) English Units Metric Units SGE-56SL SGE-56SM
NOx g/bhp.hr <1 <1.1 <1 <1.1 <1
CO g/bhp.hr <1.8 <1.8 <1.8 <2.2 <2.2
THC (in C1base) g/bhp.hr <3.5 <3.5 <3.5 <3.5 <3.5
NMHC (in C1 base) g/bhp.hr <0.7 <0.7 <0.7 <0.7 <0.7

8) Lower emission engines are available; contact a sales representative for performance data
– Engine performance data acc. to ISO 3046/1
– The values given in this data sheet are for information purposes only and not binding

Dimensions and other data

Dimensions Engine English Units Metric Units SGE-18SL SGE-24SL SGE-36SL SGE-48SL SGE-56SL/SGE-56SM
Width in. mm 37205 (945) 37205 (945) 53838 (1368) 53858 (1368) 61024 (1550)
Lenght in. mm 79528 (2020) 102835 (2612) 103819 (2637) 123740 (3143) 118110 (3000)
Height in. mm 57441 (1459) 57441 (1459) 68425 (1738) 68425 (1738) 86614 (2200)
Dry weight engine lb kg 5952 (2700) 7716 (3500) 9259 (4200) 12015 (5450) 12787 (5800)
Dimensions 60 Hz Genset English Units Metric Units SGE-18SL SGE-24SL SGE-36SL SGE-48SL SGE-56SL/SGE-56SM
Width in. mm 47244 (1200) 50000 (1270) 65512 (1664) 65512 (1664) 65709 (1669)
Lenght in. mm 119055 (3024) 144016 (3658) 150787 (3830) 173071 (4396) 183819 (4669)
Height in. mm 72677 (1846) 75354 (1914) 83937 (2132) 85984 (2184) 85669 (2176)
Dry weight engine lb kg 8818 (4000) 10891 (4940) 15939 (7230) 20338 (9225) 22046 (10000)

Noise emissions*

Engine Noise dB(A) HZ (Frec. Band) SGE-18SL SGE-24SL SGE-36SL SGE-48SL SGE-56SL SGE-56SM
1,200 1,500 1,800 1,200 1,500 1,800 1,200 1,500 1,800 1,200 1,500 1,800 1,200 1,500 1,800 1,500 1,800
125 - - - 59 72 70 - 70 - 66 73 70 7 76 73 76 73
250 70 73 76 73 82 86 69 81 74 70 83 84 79 92 87 92 87
500 82 83 88 79 87 84 76 86 90 76 88 84 81 89 85 89 85
1,000 84 87 91 85 90 89 82 88 85 81 90 88 83 89 87 89 87
2,000 81 84 87 83 89 87 83 86 87 80 89 89 84 89 91 89 91
4,000 76 79 83 77 86 83 79 80 82 73 82 83 79 85 86 85 86
LpA, Σ dB(A) 88 90 94 88 95 94 87 92 93 85 95 93 89 97 95 97 95

Noise emissions*

Engine Noise dB(A) HZ (Frec. Band) SGE-18SL SGE-24SL SGE-36SL SGE-48SL SGE-56SL SGE-56SM
63 94 97 99 96 99 101 96 100 102 94 98 99 98 102 102 102 103
125 106 118 128 109 121 131 109 121 131 111 124 127 109 121 125 121 125
250 106 124 128 113 127 131 113 126 131 112 125 114 112 125 134 125 135
500 112 113 120 115 116 123 115 119 126 119 124 130 117 122 128 122 127
1,000 108 112 115 111 115 118 112 117 119 116 121 123 113 118 120 118 120
2,000 109 110 112 113 114 116 113 115 116 117 119 119 113 115 115 115 116
4,000 109 106 105 112 109 108 114 110 110 116 111 112 114 109 110 109 112
LpA, Σ dB(A) 117 126 132 120 128 135 121 129 135 124 130 136 121 129 135 129 136

Notes:
Data obtained according ISO 9614-2
Data obtained @ 1 m from engine according UNE-EN ISO-11203:1996
Maximun data Standard Deviation s = ± 4 dB(A)