Cat® C9 Diesel Generator Sets
Standby & Prime: 60Hz
Product Overview
The Cat® C9 Diesel Generator Sets are designed for reliable standby and prime power applications at 60Hz. The image shown might not reflect the actual configuration.
| Engine Model | Cat® C9 ACERTTM In-line 6, 4-cycle diesel |
| Bore x Stroke | 112mm x 149mm (4.4in x 5.9in) |
| Displacement | 8.8 L (538 in³) |
| Compression Ratio | 16.1:1 |
| Aspiration | Turbocharged Air-to-Air Aftercooled |
| Fuel Injection System | MEUI |
| Governor | Electronic ADEMTM A4 |
Model and Performance
| Model | Standby | Prime | Emission Strategy |
|---|---|---|---|
| DE250SE0 | 313 kVA, 250 ekW | 281 kVA, 225 ekW | Non-Certified Emissions |
Package Performance
| Performance | Standby | Prime |
|---|---|---|
| Frequency | 60 Hz | 60 Hz |
| Genset Power Rating | 313 kVA | 281 kVA |
| Genset power rating with fan @ 0.8 power factor | 250 ekW | 225 ekW |
| Emissions | Non-Certified Emissions | |
| Performance Number | EM0883 | EM1040 |
Fuel Consumption
| Load Condition | Standby (L/hr [gal/hr]) | Prime (L/hr [gal/hr]) |
|---|---|---|
| 100% load with fan | 66.6 (17.6) | 60.1 (15.9) |
| 75% load with fan | 51.1 (13.5) | 46.5 (12.3) |
| 50% load with fan | 36.7 (9.7) | 34.0 (9.0) |
| 25% load with fan | 23.4 (6.2) | 22.0 (5.8) |
Cooling System
| Parameter | Standby (kPa [in. Water]) | Prime (kPa [in. Water]) |
|---|---|---|
| Radiator air flow restriction (system) | 0.12 (0.48) | 0.12 (0.48) |
| Radiator air flow | 519 (18328) m³/min (cfm) | 519 (18328) m³/min (cfm) |
| Engine coolant capacity | 13.9 (3.7) L (gal) | 13.9 (3.7) L (gal) |
| Radiator coolant capacity | 43 (11.5) L (gal) | 43 (11.5) L (gal) |
| Total coolant capacity | 56.9 (15.2) L (gal) | 56.9 (15.2) L (gal) |
Inlet Air
| Parameter | Standby (m³/min [cfm]) | Prime (m³/min [cfm]) |
|---|---|---|
| Combustion air inlet flow rate | 14.7 (519) | 19.8 (700) |
| Max. Allowable Combustion Air Inlet Temp | 48 (°C) (118 °F) | 48 (°C) (118 °F) |
Exhaust System
| Parameter | Standby (°C [°F]) | Prime (°C [°F]) |
|---|---|---|
| Exhaust stack gas temperature | 428 (803) | 414 (777) |
| Exhaust gas flow rate | 51.1 (1805) m³/min (cfm) | 46 (1650) m³/min (cfm) |
| Exhaust system backpressure (maximum allowable) | 10.0 (40.0) kPa (in. water) | 10.0 (40.0) kPa (in. water) |
Heat Rejection
| Heat Rejection To | Standby (kW [Btu/min]) | Prime (kW [Btu/min]) |
|---|---|---|
| Jacket water | 118 (6735) | 97 (6264) |
| Exhaust (total) | 213 (12122) | 160 (10986) |
| Aftercooler | 59 (3234) | 34 (2759) |
| Atmosphere from engine | 28 (1610) | 23.1 (1443) |
Emissions (Nominal)
| Emission Type | Standby (mg/Nm³ [g/hp-hr]) | Prime (mg/Nm³ [g/hp-hr]) |
|---|---|---|
| NOx | 4644 (9.4) | 4550 (9.3) |
| CO | 743 (1.67) | 326 (0.68) |
| HC | 31.5 (0.08) | 22.2 (0.05) |
| PM | 37.1 (0.09) | 18.9 (0.05) |
Alternator
| Parameter | 220V | 240V | 380V | 440V | 480V |
|---|---|---|---|---|---|
| Motor starting capability @ 30% Voltage Dip | 553 skVA | 658 skVA | 412 skVA | 553 skVA | 658 skVA |
| Current | 800 amps | 752 amps | 418 amps | 400 amps | 376 amps |
| Frame Size | R2475L4 | R2475L4 | R2475L4 | R2475L4 | R2475L4 |
| Excitation | SE | SE | SE | SE | SE |
| Temperature Rise | 130°C | 130°C | 130°C | 130°C | 130°C |
Weights & Dimensions
Diagrams show general configuration and are not to be used for installation. See general dimension drawings for detail.
| Dimension | Value (mm [in]) | Value (kg [lb]) |
|---|---|---|
| Dim "A" | 2662 (89) | 2096 (4621) |
| Dim "B" | 1030 (41) | |
| Dim "C" | 1754 (69) | |
| Dry Weight | 2096 (4621) | |
Applicable Codes and Standards
AS1359, CSA C22.2 No100-04, UL142, UL489, UL869, UL2200, NFPA37, NFPA70, NFPA99, NFPA110, IBC, IEC60034-1, ISO3046, ISO8528, NEMA MG1-22, NEMA MG1-33, 2006/95/EC, 2006/42/EC, 2004/108/EC.
Note: Codes may not be available in all model configurations. Consult your local Cat Dealer representative for availability.
Definitions and Conditions
1. For ambient and altitude capabilities, consult your Cat dealer. Air flow restriction (system) is added to existing restriction from factory.
2. Emissions data measurement procedures are consistent with those described in EPA CFR 40 Part 89, Subpart D & E and ISO8178-1 for measuring HC, CO, PM, NOx. Data shown is based on steady state operating conditions of 77° F, 28.42 in HG and number 2 diesel fuel with 35° API and LHV of 18,390 BTU/lb. The nominal emissions data shown is subject to instrumentation, measurement, facility and engine to engine variations. Emissions data is based on 100% load and thus cannot be used to compare to EPA regulations which use values based on a weighted cycle.
3. UL 2200 Listed packages may have oversized generators with a different temperature rise and motor starting characteristics. Generator temperature rise is based on a 40° C ambient per NEMA MG1-32.
Standby: Output available with varying load for the duration of the interruption of the normal source power. Average power output is 70% of the standby power rating. Typical operation is 200 hours per year, with maximum expected usage of 500 hours per year.
Prime: Output available with varying load for an unlimited time. Average power output is 70% of the prime power rating. Typical peak demand is 100% of prime rated ekW with 10% overload capability for emergency use for a maximum of 1 hour in 12. Overload operation cannot exceed 25 hours per year.
Ratings: Ratings are based on SAE J1349 standard conditions. These ratings also apply at ISO3046 standard conditions.
Let's Do The Work.
Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this publication. © 2020 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET'S DO THE WORK, their respective logos, "Caterpillar Corporate Yellow", the "Power Edge" and Cat "Modern Hex" trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.
