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Certified for US EPA-Tier 2 / Constant Speed
Standard Model [1250kWe/60Hz]
MITSUBISHI
S12R-Y2PTAW-1 SPECIFICATION SHEET DIESEL ENGINE
S
ENGINE RATIN
G
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, 77
o
F(25
o
C) ambient temperature and 30%
relative humidity.
ITEM UNIT
STAND-BY POWER
PRIME POWER
60Hz 60Hz
Engine Speed rpm 1800 1800
No. of Cylinders
Bore mm
(in.)
Stroke mm
(in.)
Displacement liter
(in.
3
)
Brake Horse power without Fan HP 1881 1709
(kW) (1403) (1275)
Brake Mean Effective Pressure kgf/cm
2
19.4 17.7
without Fan (psi) (276) (252)
Mean Piston Speed m/s 10.8 10.8
(ft/min) (2126) (2126)
Maximum Regenerative Power HP 193 193
Absorption Capacity without Fan (kW) (144) (144)
Intake Air flow m
3
/min 135 121
(CFM) (4767) (4273)
Exhaust Gas Flow m
3
/min 356 320
(CFM) (12570) (11299)
Coolant Flow liter/min 1850 1850
(U.S. GPM) (489) (489)
Coolant Flow to Intercooler liter/min 340 340
(PTAW only) (U.S. GPM) (90) (90)
Cooling Air Flow m
3
/min
(Std. Fan) (CFM)
Allowable Fan Loss Horse Power HP 67 67
(kW) (50) (50)
Radiated Heat to Ambient kcal/hr 101344 91105
(BTU/min) (6703) (6026)
Heat Rejection to Coolant kcal/hr 439159 394787
(BTU/min) (29045) (26111)
Heat Rejection to Air Cooler kcal/hr
(PTAW Version) (BTU/min) (29045) (26111)
Heat Rejection to Exhaust kcal/hr 1192141 1059861
(BTU/min) (78847) (70098)
Noise Level (1 m height & distance) dB(A) 110 108
(excludes, lntake,Exhaust & Fan)
The s
p
ecifications are sub
j
ect to chan
g
e without notice.
APPLICATION : GENERATO
R
Pub. No. T13-0634-E
Oct. '06 Printed in Japan
(2992)
12
170
(6.69)
180
(7.09)
49.03