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Kohler 1250REOZM Generator Set

The Kohler 1250REOZM is a 1250 kW (1600 kVA) Diesel standby generator set powered by a Mitsubishi S12R-Y2PTAW-1 engine. It is available at 220/380 V, 240/416 V, 277/480 V, 347/600 V and 2400/4160 V, 3-phase and 60 Hz. It holds about 180 L (47.6 gal) of oil and 341 L (90.1 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 4 batteries rated 1150 CCA at 12 V. The set measures 6116×2232×2491 mm (240.8×87.9×98.1 in) and weighs about 12020 kg (26500 lb). The same S12R-Y2PTAW-1 engine also powers generator sets from AKSA, Generac and HOTSTART.

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power1250 kW
Standby kVA1600
Prime power1160 kW
EmissionsTier 2 EPA-Certified for Stationary Emergency Applications

Full specifications

Voltage options220/380 V, 240/416 V, 277/480 V, 347/600 V, 2400/4160 V
Phase3
Power factor0.8
Battery cranking1150 CCA
Battery voltage12 V
Coolant capacity341 L
Max ambient50 °C
Dimensions (L×W×H)6116×2232×2491 mm
Dry weight12020 kg

Engine

Mitsubishi S12R-Y2PTAW-1

Oil capacity180.0 L
Coolant capacity509.1 L
Displacement49.0 L
AspirationTurbocharged, Inter Cooler
Rated speed1800 rpm

Other generator sets with this engine

AKSA APD-UL1000AKSA APD-UL1250AKSA APD-UL800Generac IDLC1250-2MHOTSTART GSMI21250L-UL

Maintenance & consumables

For the Mitsubishi S12R-Y2PTAW-1 engine.

ItemSpecCapacityPart #Interval
Service part / kitDSE7310 MKII & DSE7320 MKII Installation Instructions 053-181 buy
Service part / kitDSE7310 MKII & DSE7320 MKII Configuration Suite PC Manual 057-243 buy
Service part / kitDSE7310 MKII & DSE7320 MKII Operator Manual 057-253 buy
Service part / kitPower Y-cord 11P48UU buy
Service part / kitReplacement Cord (120V, 11') 11PR132T buy
Service part / kitReplacement Cord (120V, 16') 11PR192T buy
Service part / kitReplacement Cord (120V, 6') 11PR72T buy
Service part / kitPower Y-cord 12P16H48UU buy
Service part / kitPower Y-cord 12P16H54S54X10UU buy
Service part / kitPower Y-cord 16H48UU buy
Service part / kitPower Y-cord 21P48UU buy
Service part / kitReplacement Cord (240V, 11') 21PR132T buy
Service part / kitReplacement Cord (240V, 16') 21PR192T buy
Service part / kitReplacement Cord (240V, 6') 21PR72T buy
Service part / kitPower Y-cord 21SCH81UU buy
Service part / kitPlug Housing A-2223-PH buy
Service part / kitStrain relief connectors A6553-2 buy
Service part / kitIn-block Heater (120V) AC-101 buy
Service part / kitIn-block Heater (240V) AC-102 buy
Service part / kitThermostat AMT70210-A2 buy
Service part / kitAluminum Well for AT6525 ATW buy
Service part / kitExtension Cord, 2' BEC-2 buy
Service part / kitExtension Cord, 4' BEC-4 buy
Service part / kitExtension Cord, 6' BEC-6 buy
Service part / kitExtension Cord, 8' BEC-8 buy
Service part / kitPower Supply Cord, 3' (120V) BPC-31 buy
Service part / kitPower Supply Cord, 3' (240V) BPC-32 buy
Service part / kitPower Supply Cord, 6' (120V) BPC-61 buy
Service part / kitPower Supply Cord, 6' (240V) BPC-62 buy
Service part / kitThermostat & "Y" Cord Assembly BY-T68 buy
Service part / kitIn-block Heater (120V) CATV-151 buy
Service part / kitIn-block Heater (240V) CATV-152 buy
Service part / kitBox CPS-1 buy
Service part / kitBox CPS-2 buy
Service part / kitIsolation Mounting Kit CTM-IMK buy
Service part / kitIn-block Heater (120V) DD8L-101 buy
Service part / kitIn-block Heater (240V) DD8L-102 buy
Service part / kitHazardous Location Immersion Heater (Single Phase, 120V, 1000W, 12" Probe) E01011E-15XA-00 buy
Service part / kitHazardous Location Immersion Heater (Single Phase, V-Clamp, 120V, 1000W, 12" Probe) E01011E-15XV-00 buy
Service part / kitWeathertight Industrial Immersion Heater (Single Phase, 120V, 1000W, 12" Probe) E01011W-15XA-00 buy

Available documents

BrochureSpec sheetReferenceParts manualService manualWiring diagram