CAT 3516 Gensets Engine Prefix # 285-3185

Engine / Basic Specs

• Engine model: 3516 series V16, four-stroke diesel

• Displacement: ≈ 78.1 L (≈ 4,765 in³) for later variants.

• Bore × Stroke: ≈ 170 mm × 215 mm (6.69 in × 8.46 in) for newer 3516C/E models.

• Compression ratio: ≈ 14.7 :1 for newer models.

• Rated speed: typically 1,500 rpm (for 50 Hz units) or 1,800 rpm (for 60 Hz units) depending on region/frequency.

• Aspiration: Turbocharged & aftercooled / water-air intercooler (varies by model).

• Fuel system: Electronic Unit Injection (EUI) for newer models; mechanical for older.

• Governing: ADEM™ series digital controller for newer units; mechanical or earlier digital for older.

Power Ratings (Examples)

• For 50 Hz models: Standby rating in the ~2,000 kVA region (e.g., 2,000 kVA standby / 1,825 kVA prime) for some 3516 (50 Hz) versions.

• For 60 Hz models: Example 3516C version offers standby rating up to ~2,500 ekW / prime ~2,250 ekW (varies by configuration).

• Higher end 3516E versions: standby up to ~3,000 ekW, prime ~2,725 ekW (60 Hz) in some configurations.

Features & Design Criteria

• Generator set packages designed to accept 100% block loading in one step (important for standby or mission-critical applications).

• Meets ISO 8528-5 transient and steady-state requirements for load acceptance and response.

• Cooling system designed for ambient up to at least ~50 °C (122 °F) for many units.

• Matched Cat alternators (e.g., SR5) with strong motor starting capability.

• Control system examples: EMCP 4 series.

• Wide range of output voltages supported (e.g., 380 V up to several kV depending model and alternator).

• Certifications / options: UL 2200, CSA, seismic (IBC), OSHPD in some cases.

Performance / Consumption (Indicative)

• Fuel consumption will vary with load, ambient, altitude, etc., but newer large-frame 3516 sets are optimized for low fuel consumption compared to earlier models.

• Example: On a 3516E (50 Hz) version: at 100% load with fan, fuel consumption ~614.6 L/hr (~162.4 gal/hr) in one configuration; at 75% load ~466.7 L/hr (~123.3 gal/hr); at 50% load ~330.6-L/hr (~87.3 gal/hr) in that spec sheet.

• Typical installation considerations: large cooling system, heavy frame, significant weight and footprint.