HomeSDMOSDMO TM20UC

SDMO TM20UC Generator Set

The SDMO TM20UC is a 20 kW (25 kVA) Diesel standby generator set powered by a Mitsubishi S4Q2.Y262SD engine. It is available at 480/277 V, 440/254 V, 240/120 V, 230/115 V, 220/127 V and 208/120 V, 3-phase, 60 Hz and rated 30 A. It holds about 5.5 L (1.5 gal) of oil and 8.1 L (2.1 gal) of coolant, with a maximum ambient rating of 93 °C. Starting uses 1 group-12 battery at 12 V. The set measures 1400×780×1055 mm (55.1×30.7×41.5 in), weighs about 500 kg (1102 lb) and produces 77 dBA at 1 m. An integrated tank holds 36 L (9.5 gal), roughly N/A hours of runtime.

20 kW
Standby
2.5 L
Displacement
5.5 L
Oil capacity
1
Document types

How to read your SDMO serial & model number →

Typical fuel consumption for 20–25 kW Diesel generators →

Compare with other 20–25 kW Diesel generators →

Service parts for the TM20UC

Grouped by system, with how many of each the parts manual calls for.

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power20 kW
Standby kVA25
Prime power18 kW
EmissionsN/A
ControllerMicroprocessor
Oil capacity5.5 L
AlternatorMecc Alte ECO 28 1L/4
Voltage options480/277 V, 440/254 V, 240/120 V, 230/115 V, 220/127 V, 208/120 V
Phase3
Rated current30 A
Power factor0.8
Circuit breaker30 A
Battery group12 V
Battery voltage12 V
Battery quantity1
Coolant capacity8.1 L
Max ambient93 °C
Dimensions (L×W×H)1400×780×1055 mm
Dry weight500 kg
Sound level77.0 dBA @ 1 m
Fuel tank36.0 L
Tank runtimeN/A hr

Engine

Mitsubishi S4Q2.Y262SD
Oil capacity6.5 L
Coolant capacity5.5 L
Displacement2.5 L
AspirationAthmo
Rated speed1800 rpm

Maintenance & consumables

for the Mitsubishi S4Q2.Y262SD
ItemSpecCapacityPart #Interval
Oil filterOil Pressure low idleMD162326M Amazon eBay $28.08

Common questions

What size generator is the SDMO TM20UC?

The SDMO TM20UC is rated 20 kW standby (25.0 kVA).

Which engine powers the SDMO TM20UC?

The SDMO TM20UC is powered by the Mitsubishi S4Q2.Y262SD engine.

Is the SDMO TM20UC diesel or gas?

The SDMO TM20UC runs on Diesel.

How much oil does the SDMO TM20UC take?

The Mitsubishi S4Q2.Y262SD engine in the SDMO TM20UC has an oil capacity of 6.5 liters.

Which alternator is fitted to the SDMO TM20UC?

The SDMO TM20UC uses a Mecc Alte ECO 28 1L/4 alternator.

What oil filter fits the SDMO TM20UC?

The SDMO TM20UC uses oil filter part number MD162326M.

Fuel consumption

RatingLoadL/hgal/h
Prime50%4.11.1
Prime75%5.61.5
Prime100%7.42.0
Standby100%8.12.1
Standby110%8.12.1

Available documents

Spec sheet — T20UCM (SDMO)Spec sheet — TM20UC (SDMO)
Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter MD162326M$28.08
1 priced item$28.08
Other sets with this engine