Certified for US EPA-Tier 2 / Constant Speed
Standard Model [800kWe/60Hz]
MITSUBISHI
S12A2-Y2PTAW-2
SPECIFICATION SHEET
DIESEL ENGINES
GENERAL ENGINE DATA
Type
4-Cycle, Water Cooled
Aspiration
Turbo-Charged, Inter Cooler
(Fresh water to Cooler)
Cylinder Arragement
No.of Cylinders
60oV
12
Bore mm(in.)
150
160
33.93 (2071)
15.3:1
(5.91)
(6.30)
Stroke mm(in.)
Displacement liter(in3)
Compression Ratio
Dry Weight - Engine only - kg(lb )
Wet Weight - Engine only - kg(lb )
PERFORMANCE DATA
Steady State Speed Stability Band at any Constant Load
Electric Governor - %
Maximum Overspeed Capacity - rpm
Moment of inertia of Rotating Components - kgf・m2(lbf・ft2)
(Includes Std.Flywheel)
3380 (7453)
3600 (7938)
±0.25 or better
2400
37.7
(894.8)
Cyclic Speed Variation with Flywheel at 1800rpm
1/449
ENGINE MOUNTING
Maximum Bending Moment at Rear Face of Flywheel Housing - kgf・m(lbf・ft)
AIR INLET SYSTEM
200
(1447)
Maximum Intake Air Restriction (Includes piping)
With Clean Filter Element - mm H 2O (in.H2O)
With Dirty Filter Element - mm H2O (in.H2O)
EXHAUST SYSTEM
400
635
(15.7)
(25.0)
Maximum Allowable Back Pressure - mm H2O (in.H2O)
LUBRICATION SYSTEM
600
(23.6)
Oil Pressure at ldle - kgf/cm2(psi)
2～3 (29～43)
4～6 (57～86)
110
100
80
at Rate Speed - kgf/cm2(psi)
o
Maximum Oil Temperature - C(oF)
(230)
(26.4)
(21.1)
(31.7)
Oil Capacity of Standard Pan High - liter (U.S.gal)
Low - liter (U.S.gal)
Total System Capacity (lncludes Oil Filter) - liter (U.S.gal)
Maximum Angle of lnstallation (Std. Pan) Front Down
120
9.5o
11o
(Engine Only)
Front Up
Side to Side
22.5o
COOLING SYSTEM
Coolant Capacity of Jacket (Engine only) - liter (U.S.gal)
Coolant Capacity of Air cooler (Engine only) - liter (U.S.gal)
Maximum External Friction Head at Engine Outlet - kgf/cm 2(psi)
(For Jacket and Air Cooler)
86
14
(22.7)
(3.7)
0.35
10
(5.0)
(32.8)
Maximum Static Head of Coolant above Crankshaft Center - m(ft)
Standard Thermostat (modulating)Range of Jacket - C(oF)
65～85 (149～185)
35～50 (95～122)
98
o
Standard Thermostat (modulating)Range of Air Cooler - C(oF)
o
Maximum Coolant Temperature at Engine Outlet - C(oF)
(208)
o
Minimum Coolant Expansion Space - % of System Capacity
(For Jacket and Air Cooler)
10
45
10
(0.4)
(113)
(0.4)
o
Maximum Coolant Temperature at Intercooler lnlet, PTAW type - C(oF)
Maximum Air Restriction on Discharge Side of Radiator and Fan - mm H 2O(in.H2O)
APPLICATION : GENERATOR
Pub. No.T13-0631-E
Dec. '06 Printed in Japan
Certified for US EPA-Tier 2 / Constant Speed
Standard Model [800kWe/60Hz]
M ITSUBISHI
S12A2-Y2PTAW-2
ENGINE RATING
SPECIFICATION SHEET DIESEL ENGINE
All data represent net performance with standard accessories such as air cleaner, inlet /exhaust manifolds, fuel oil system,
L.O. pump, etc. under the condition of 100kPa(29.6inHg) barometric pressure, 77oF(25oC) ambient temperature and 30%
relative humidity.
STAND-BY POWER
60Hz
PRIME POWER
60Hz
ITEM
UNIT
rpm
Engine Speed
1800
1800
No. of Cylinders
12
Bore
mm
(in.)
150
(5.91)
160
Stroke
mm
(in.)
(6.30)
33.93
Displacement
liter
(in.3)
(2071)
Brake Horse power without Fan
HP
1207
(900)
18.0
1099
(820)
16.4
(kW)
kgf/cm2
Brake Mean Effective Pressure
without Fan
(psi)
(256)
9.6
(233)
9.6
Mean Piston Speed
m/s
(ft/min)
HP
(1890)
125
(1890)
125
Maximum Regenerative Power
Absorption Capacity without Fan
Intake Air flow
(kW)
(93)
(93)
m3/min
(CFM)
m3/min
(CFM)
liter/min
(U.S. GPM)
liter/min
(U.S. GPM)
m3/min
(CFM)
HP
88
75
(3107)
232
(2648)
200
Exhaust Gas Flow
Coolant Flow
(8192)
1100
(291)
470
(7062)
1100
(291)
470
Coolant Flow to Intercooler
(PTAW only)
(124)
(124)
Cooling Air Flow
－
－
(Std. Fan)
Allowable Fan Loss Horse Power
51
51
(kW)
(38)
(38)
Radiated Heat to Ambient
Heat Rejection to Coolant
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
kcal/hr
(BTU/min)
dB(A)
66155
(4375)
308721
(20418)
242567
(16043)
813498
(53804)
105
56798
(3757)
265058
(17531)
208260
(13774)
658220
(43534)
103
Heat Rejection to Air Cooler
(PTAW Version)
Heat Rejection to Exhaust
Noise Level (1 m height & distance)
(excludes, lntake,Exhaust & Fan)
The specifications are subject to change without notice.
Pub. No.T13-0471-E
APPLICATION : GENERATOR
Dec. '06 Printed in Japan
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