2025 Generac Mobile Stationary Generators SD050

Information

2025 Generac Mobile Stationary Generators SD050

Alternators are as important to power generation as engines. Generac's in-house built alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency. Available in single-phase or three-phase, the 50kW industrial diesel generator set provides 60-208amps of power. There are open set, standard enclosure, or Level 1 or 2 acoustic enclosure options. Made with a 4 cylinder engine, it features a Power Zone ® 410 Controller. 50kW generators have the power to backup essential equipment in small industrial or commercial buildings.

Features may include:

GENERATOR ENCLOSURE
  • Generac manufactures its own enclosures, ensuring each unit combines the highest level of durability, noise reduction, weather resistance, and streamlined design.
INDUSTRIAL ALTERNATOR
  • Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency.
POWER ZONE ® 410 CONTROLLER
  • Generac engineers its generator controls with safety and convenience as top priorities.

Photos

Highlights

  • Muncy, Pennsylvania
  • 2025
  • Generac Mobile
  • Stationary Generators SD050
  • Ultra Low Sulfur Diesel Fuel #2 | Specifications: ASTM
  • Available

Specifications

  • 2025
  • Generac Mobile
  • Stationary Generators
  • SD050
  • General
  • Generac
  • EPA Emissions Compliance: Stationary Emergency | EPA Emissions Reference: See Emission Data Sheet
  • 4
  • In-Line
  • 207.48 in3 (3.4 L)
  • 3.86 in (98 mm)
  • 4.45 in (113 mm)
  • 18.5:1
  • Type: Closed Recovery | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | Radiator Drain Extension | 50/50 Ethylene Glycol Antifreeze | 120 VAC Coolant Heater
  • Horsepower at Rated kW: 86 hp | Single-Phase 120/240 VAC @1.0pf: 50 kW / 208 Amps | Three-Phase 120/208 VAC @0.8pf: 50 kW / 173 Amps | Three-Phase 120/240 VAC @0.8pf. 50 kW / 150 Amps | Three-Phase 277/480 VAC @0.8pf: 50 kW / 75 Amps | Three-Phase 346/600 VAC @0.8pf: 50 kW / 60 Amps
  • Intake Air Method: Turbocharged/Aftercooled
  • Electronic Isochronous
  • Filtering (microns): 10 | Fuel Lockoff Solenoid | Primary Fuel Filter
  • Ultra Low Sulfur Diesel Fuel #2 | Specifications: ASTM
  • Type: Pintel - 2,100 psi (14,479 kPa)
  • Diesel 25%: 1.3 gph (4.9 Lph) | Diesel 50%: 2.3 gph (8.7 Lph) | Diesel 75%: 3.3 hph (12.5 Lph) | Diesel 100%: 4.3 gph (16.4 Lph)
  • Size: See Battery Index 0161970SBY | Voltage: 12 VDC
  • Standard
  • System Voltage: 12 VDC | Ground Polarity: Negative
  • Standard Model: K0050124Y21 | Poles: 4 | Field Type: Revolving | Insulation Class - Rotor: H | Insulation Class - Stator: H | Total Harmonic Distortion: <5% (3-Phase) | Telephone Interference Factor (TIF): < 50 | Standard Excitation: Synchronous Brushless | Bearings: Single Sealed Cartridge | Coupling: Direct via Flexible Disc | Load Capacity - Standby: 100% | Voltage Regulator Type: Digital | Regulation Accuracy (Steady State): ±0.25% | UL2200 GENprotect™ | 12 Leads (3-Phase, Non 600V) | Class H Insulation Material | Vented Rotor| 2/3 Pitch | Skewed Stator | Auxiliary Voltage Regulator Power Winding | Brushless Excitation | Sealed Bearing | Automated Manufacturing (Winding, Insertion, Lacing, Varnishing) | Rotor Dynamically Spin Balanced | Full Load Capacity Alternator | Protective Thermal Switch
  • Frequency Regulation (Steady State): ±0.25%
  • Fan: 2,250 RPM | Rated Engine: 1,800 RPM | Piston: 1,335 ft/min (406.9 m/min)
  • Maximum Operating Ambient Temperature: 122 °F (50 °C) | Maximum Ambient Temperature (Before Derate): See Bulletin No. 0199280SSD | Exhaust Temp (Rated Output): 1,044 °F (562 °C)
  • Oil: Gear | Water: Pre-Lubed, Self Sealing | Inject: Bosch (VE) | Fuel: Engine Driven Gear
  • Type: Full Flow Cartridge
  • Total Fuel Pump Flow (Combustion + Return): 3.6 gph (13.5 Lph) | Coolant: 12.2 gpm (46 Lpm) | Exhaust Flow (Rated Output): 448 scfm (12.7 m3/min)
  • Inlet Air: 7,500 scfm (212 m3/hr) | Flow at Rated Power: 166 scfm (4.7 m3/min)
  • Maximum Radiator Backpressure: 0.5 in H2O (0.12 kPa) | BMEP: 169 psi(1,165 kPa) | Max. Allowable Backpressure: 1.5 inHg (5.1 kPa)
  • Fan Diameter: 560 in (22 mm) | Fuel Supply Line: 0.312 in (7.92 mm) NPT | Fuel Return Line: 0.312 in (7.92 mm) NPT | Fuel Pump Lift: 3 ft (1 m)
  • Crankcase: 7.4 qt (7 L)
  • Coolant Capacity: 2.5 gal (9.5 L)
  • Fan Type: Pusher | Oil Drain Extension | Air Cleaner | Fan Guard | Factory Filled Oil and Coolant | Radiator Duct Adapter (Open Set Only) | Critical Silencer (Enclosed Units Only) | Battery Charging Alternator | Battery Cables | Battery Tray | Rubber-Booted Engine Electrical Connections | Solenoid Activated Starter Motor | Internal Genset Vibration Isolation | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Wrapped Exhaust Piping | Standard Factory Testing | Silencer Mounted in the Discharge Hood (Enclosed Only) | Silencer of Heat Shield
  • Cylinder Head: Cast Iron OHV | Piston Head: Aluminum | Crankshaft Type: Forged Steel | Stainless Steel Flexible Exhaust Connection
  • 2 Year Limited Warranty (Standby Rated Units) | 1 Year Limited Warranty (Prime Rated Units)