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Cummins Onan C45 N6H Specs (Power | Fuel Consumption)

The Cummins Onan C45 N6H generator is listed with standby output of 45 kW, 60 Hz operation, 3 available voltage configurations, and Single phase / Three phase.

Cummins Onan Generator Specifications

Generator • 60 Hz • Single phase / Three phase

Standby power: 45 kWVoltage options: 3 configurationsDry weight: 2,758 lb (1,251 kg)

Key specifications

45 kW Standby power
3 configurations Voltage options
Single phase / Three phase Phase
2,758 lb (1,251 kg) Dry weight
60 Hz Frequency

Useful generator charts

Charts are shown only when this model has enough usable source data.

Power-to-weight
Standby output per 1,000 lb of dry weight versus similar-output Cummins Onan models.
This model

16.3 kW

Peer average

20.4 kW

25th percentile
Model spec snapshot
Representative numeric specifications from this generator.
45 kWStandby
2,757.98 lbWeight

How the Cummins Onan C45 N6H compares

This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.

Standby power
45 kW
9% above avg
68th percentile
Dry weight
2,758 lb
26% above avg
83rd percentile
Oil capacity
1.14 gal
55% below avg
7th percentile
Standby power45 kW
Low 30 kWAverage 41.2 kWHigh 55 kW

About 9% above the similar-output Cummins Onan average. Around the 68th percentile for this field.

Dry weight2,758 lb
Low 1,120 lbAverage 2,187 lbHigh 3,476 lb

About 26% above the similar-output Cummins Onan average. Around the 83rd percentile for this field.

Oil capacity1.14 gal
Low 1.14 galAverage 2.54 galHigh 4.06 gal

About 55% below the similar-output Cummins Onan average. Around the 7th percentile for this field.

This model Peer average

Generator information

Manufacturer Cummins Onan
Model C45 N6H
Generator type Generator
Frequency 60 Hz

Electrical output

Standby power 45 kW
Standby kVA 56.0
Voltage options 120/240 V, 120/208 V, 277/480 V
Phase Single phase / Three phase

Engine, cooling and controls

Engine model Cummins/Onan QSJ2.4
Engine displacement 146 cu in (2.4 L)
Aspiration / cooling Turbocharged Aftercooled
Rated engine speed 1800 rpm
Engine coolant capacity 3.38 gal (12.8 L)
Oil capacity 1.14 gal (4.3 L)
Coolant capacity 3.38 gal (12.8 L)
Maximum ambient 122 °F (50 °C)
Controller PowerCommand 1.1

Physical specifications

Dry weight 2, 758 lb (1, 251 kg)
Wet weight 2, 837 lb (1, 287 kg)
Dimensions (L × W × H) 34.5 × 1.3 × 1.7 in (876 × 34 × 44 mm)

Battery

Battery group 26 standard / 34 high capacity
Battery cranking 550 CCA
Battery voltage 12 V

Maintenance and service parts

Engine oil Interval: 804 hr; Specification: 500 miles or 6 months, whichever comes first
Oil filter Interval: 1000 hr; Specification: Every 1000 hours of operation or as needed, whichever comes first
Fuel filter Interval: 500 hr; Specification: Every 500 hours of operation or as needed, whichever comes first

Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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