Cummins C20D6 (20kW)

20 kW standby diesel generator designed for residential, agricultural, and light commercial backup power applications. The C20D6 No-Tank configuration combines a Cummins D2200 industrial diesel engine, PowerCommand 1.1 controls, and a sound-attenuated aluminum enclosure for dependable emergency power performance.

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Cummins C20D6 (20kW)

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SKU: C20D6

  • 20 kW / 20 kVA standby power rating 
  • No fuel tank configuration 
  • Cummins D2200 heavy-duty 4-cycle industrial diesel engine 
  • PowerCommand 1.1 digital control system 
  • 120/240V single-phase output 
  • Brushless 4-pole alternator design 
  • Class H insulation system 
  • Isochronous frequency regulation 
  • ±1.0% voltage regulation 
  • Standard 6A battery charger 
  • Sound Level 1 aluminum enclosure 
  • Operating temperature range from -40°F to 122°F 
  • EPA and UL compliant design 
  • NFPA 110 Level 1 prototype-tested design support 
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Description

 

C20D6 - Details and Specifications:

General Details 

  • Model: C20D6 
  • Configuration: No Fuel Tank 
  • Standby Rating: 20 kW / 20 kVA 
  • Controller: PowerCommand 1.1 
  • Voltage / Phase: 120/240V Single Phase 
  • Operating Temperature Range: -40°F to 122°F 
  • Circuit Breaker: 100 Amps 
  • Battery Charger: Standard 6A 
  • Governor Regulation Class: ISO 8528 Part 1 Class G3 
  • Voltage Regulation: ±1.0% 
  • Frequency Regulation: Isochronous 
  • Random Frequency Variation: ±0.5% 
  • FCC Title 47 Part 15 Class A and B Compliant 

Engine Specifications 

  • Engine Model: Cummins D2200 
  • Engine Type: Heavy-duty 4-cycle industrial diesel 
  • Displacement: 2.20 L (134.1 in³) 
  • Cylinder Block: Cast iron, in-line 
  • Battery Capacity: 550 amps 
  • Battery Charging Alternator: 50 amps 
  • Starting Voltage: 12-volt, negative ground 
  • Lube Oil Filter: Spin-on with relief valve 
  • Rated Speed: 1800 rpm 

Alternator Specifications 

  • Design: Brushless, 4-pole, drip-proof, revolving field 
  • Stator: 2/3 pitch 
  • Rotor: Direct coupled, flexible disc 
  • Insulation System: Class H per NEMA MG1-1.65 
  • Standard Temperature Rise: 120°C (248°F) Standby 
  • Exciter Type: Torque match (shunt), PMG optional 
  • Alternator Cooling: Direct drive centrifugal blower 
  • THDV: <5% no load to full linear load 
  • TIF: <50 per NEMA MG1-22.43 
  • THF: <3% 

Control System 

  • PowerCommand 1.1 electronic control 
  • Automatic remote starting and stopping 
  • Precise voltage and frequency regulation 
  • Alarm and status message display 
  • Output metering 
  • Auto-shutdown at fault detection 
  • Integrated generator set control and monitoring 

Enclosure 

  • Sound Level 1 Sandstone enclosure 
  • Aluminum construction 
  • Powder coat finish for corrosion resistance 
  • Designed to withstand wind loads up to 180 mph per ASCE 7-10 
  • Low-noise enclosure design 

Accessories 

  • Battery Heater Kit (A045R833) 
  • RS Remote In-Home Display (A053K028) 
  • Remote Monitoring Device PC500 (A059Y211) 
  • Remote Monitoring Device PC550 (A059Y210) 

Dimensions and Weight 

  • Length: 72 in 
  • Width: 34 in 
  • Height: 45.5 in 
  • Dry Weight: 1091 lbs 
  • Wet Weight: 1127 lbs 

product specifications:

SpecificationValue
ModelC20D6 (No Tank)
Standby Power20 kW / 20 kVA
Fuel TankNone
ControllerPowerCommand 1.1
Voltage - Phase120/240V - 1 Phase
Operating Temperature Range-40°F to 122°F
Circuit Breaker100 Amps
Battery ChargerStandard - 6A
Governor Regulation ClassISO 8528 Part 1 Class G3
Voltage Regulation±1.0%
Random Voltage Variation±1.0%
Frequency RegulationIsochronous
Random Frequency Variation±0.5%
Radio Frequency EmissionsFCC Title 47 Part 15 Class A and B
Engine ModelD2200
Engine Displacement134.1 in³ (2.20 L)
Cylinder BlockCast iron, in-line
Battery Capacity550 amps
Battery Charging Alternator50 amps
Starting Voltage12-volt, negative ground
Lube Oil FilterSpin-on with relief valve
Rated Speed1800 rpm
Alternator DesignBrushless, 4-pole, drip-proof, revolving field
Stator2/3 pitch
RotorDirect coupled, flexible disc
Insulation SystemClass H per NEMA MG1-1.65
Standard Temperature Rise248°F (120°C) Standby
Exciter TypeTorque match (shunt) with PMG option
Alternator CoolingDirect drive centrifugal blower
THDV<5% no load to full linear load
TIF<50 per NEMA MG1-22.43
THF<3%
Length72 in
Width34 in
Height45.5 in
Dry Weight1091 lbs
Wet Weight1127 lbs

 

product related documents:

C20D6 spec sheet.PDF

eds-1181.PDF

A047H233.PDF

A047E124.PDF

A047D042.PDF

A043U604.PDF

Additional Info
Weight1127 lbs
Dimensions72 × 34 × 45.5 in
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