Cummins Onan MDJA Specs (Power | Fuel Consumption)

The Cummins Onan MDJA generator is listed with standby output of 2 kW, diesel fuel, 50 Hz operation, 3 available voltage configurations, and Single phase.

Cummins Onan Generator Specifications

Generator • diesel • 50 Hz • Single phase

Standby power: 2 kWVoltage options: 3 configurationsDry weight: 366 lb (166 kg)

Key specifications

2 kW Standby power

diesel Fuel

3 configurations Voltage options

Single phase Phase

366 lb (166 kg) Dry weight

50 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

5.5 kW

Peer average

24.1 kW

11th percentile

Model spec snapshot

Representative numeric specifications from this generator.

2 kWStandby

365.97 lbWeight

How the Cummins Onan MDJA 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

2 kW

68% below avg

14th percentile

Dry weight

366 lb

47% below avg

41st percentile

Oil capacity

0.63 gal

19% below avg

41st percentile

Standby power2 kW

Low 1 kWAverage 6.2 kWHigh 14 kW

About 68% below the similar-output Cummins Onan average. Around the 14th percentile for this field.

Dry weight366 lb

Low 37 lbAverage 690 lbHigh 3,525 lb

About 47% below the similar-output Cummins Onan average. Around the 41st percentile for this field.

Oil capacity0.63 gal

Low 0.15 galAverage 0.78 galHigh 1.66 gal

About 19% below the similar-output Cummins Onan average. Around the 41st percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	MDJA
Generator type	Generator
Fuel	diesel
Frequency	50 Hz

Electrical output

Standby power	2 kW
Standby kVA	2.0
Voltage options	120 V, 240 V, 120/240 V
Phase	Single phase
Power factor	1

Engine, cooling and controls

Engine model	Cummins/Onan MDJA
Engine displacement	30 cu in (0.49 L)
Rated engine speed	1800 rpm
Engine oil capacity	0.63 gal (2.4 L)
Oil capacity	0.63 gal (2.4 L)
Controller	Analog control panel: battery charge rate ammeter, preheat switch, start-stop switch, field circuit breaker

Physical specifications

Dry weight	366 lb (166 kg)
Dimensions (L × W × H)	28.6 × 20.6 × 26.8 in (727 × 524 × 681 mm)

Battery

Battery group	1H
Battery cranking	450 CCA
Battery voltage	12 V
Battery quantity	2

Maintenance and service parts

Engine oil	Interval: 100 hr; Specification: API CD/SE or CC/SE; Capacity: 2.5
Oil filter	Interval: 200 hr; Specification: Full Flow
Fuel filter	Interval: 3000 hr; Specification: Secondary
Air filter	Interval: 8 hr
Coolant	Specification: Optional heat-exchanger (captive water) cooling system capacity; 50/50 ethylene glycol/water mix recommended

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