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Generac MDE330 Specs (Power | Voltage | Weight)

Written by Ernie Lo in Specs Last Updated August 18, 2026

The Generac MDE330 compressor is listed with standby output of 290 kW, Diesel fuel, 60 Hz operation, 208/120 V, 288/360 V, 000 V, 240/120 V, 290/363 V, 873 V, 480/277 V, 437 V output, Three phase, rated current of 1000 A, and sound level of 75 dBA @ 75 ft (23 m).

Generac Generator Specifications

Generator • Diesel • 60 Hz • Three phase

Standby power: 290 kWVoltage: 208/120 V, 288/360 V, 000 V, 240/120 V, 290/363 V, 873 V, 480/277 V, 437 VRated current: 1000 ADry weight: 12,130 lb (5,502 kg)

Key specifications

290 kWStandby power
DieselFuel
208/120 V, 288/360 V, 000 V, 240/120 V, 290/363 V, 873 V, 480/277 V, 437 VVoltage
Three phasePhase
1000 ARated current
12,130 lb (5,502 kg)Dry weight
75 dBA @ 75 ft (23 m)Sound level
60 HzFrequency

Visual model specs

Built only from this model’s supplied generator specifications.

Power output
Low 288 kW High 290 kW
Standby

290 kW

Prime

288 kW

Fluid capacities
Low 2.09 gal High 2.64 gal
Oil

2.09 gal

Coolant

2.64 gal

Model spec snapshot
Representative numeric specifications from this generator.
290 kWStandby
1,000 ACurrent
12,129.83 lbWeight
75 dBASound

How the Generac MDE330 compares

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

Standby power
290 kW
13% above avg
60th percentile
Rated current
1,000 A
42% above avg
65th percentile
Dry weight
12,130 lb
77% above avg
95th percentile
Sound level
75 dBA
7% below avg
25th percentile
Standby power290 kW
Low 150 kWAverage 255.7 kWHigh 375 kW

About 13% above the similar-output Generac average. Around the 60th percentile for this field.

Rated current1,000 A
Low 311 AAverage 706 AHigh 1,183 A

About 42% above the similar-output Generac average. Around the 65th percentile for this field.

Dry weight12,130 lb
Low 2,844 lbAverage 6,845 lbHigh 12,362 lb

About 77% above the similar-output Generac average. Around the 95th percentile for this field.

Sound level75 dBA
Low 68 dBAAverage 81 dBAHigh 93 dBA

About 7% below the similar-output Generac average. Around the 25th percentile for this field.

Oil capacity2.09 gal
Low 1.25 galAverage 7.51 galHigh 9.51 gal

About 72% below the similar-output Generac average. Around the 7th percentile for this field.

This model Peer average

Generator information

Manufacturer Generac
Model MDE330
Generator type Generator
Fuel Diesel
Frequency 60 Hz

Electrical output

Standby power 290 kW
Prime power 288 kW
Standby kVA 363.0
Voltage options 208/120 V, 288/360 V, 000 V, 240/120 V, 290/363 V, 873 V, 480/277 V, 437 V
Phase Three phase
Rated current 1000 A
Power factor 0.8

Engine, cooling and controls

Oil capacity 2.09 gal (7.9 L)
Coolant capacity 2.64 gal (10 L)
Maximum ambient 109 °F (43 °C)
Controller Electronics Model DSE8610 MKII, Power Zone Pro Sync
Alternator Leroy-Somer LSA 46.3 L10
Emissions 4 Final

Physical specifications

Dry weight 12, 130 lb (5, 502 kg)
Sound level 75 dBA @ 75 ft (23 m)

Battery

Battery group 31
Battery cranking 950 CCA
Battery voltage 24 VDC (2) V
Battery quantity 2

Fuel system and runtime

Fuel tank 420.8 gal (1, 593 L)
Tank runtime 26.2 hr

Disclaimer: Specifications should be verified against the official owner’s manual and confirmed on the Generac USA website.

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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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