L23/30H

Basic information

Bore:	225 mm
Stroke:	300 mm
Speed:	900 / 750 / 720 rpm
Frequency:	50 Hz (750 rpm) / 60 Hz (720 rpm, 900 rpm)
Main effective pressure:	17.9 / 18.1 / 18.2 bar

ENGINE CHARACTERISTICS

Performance: The L23 / 30H is a four-stroke in-line engine with a minimum of 5 and a maximum of 8 cylinders. The output power range ranges from 650 kW to 1,280 kW.

Compact dimensions: 5.5 to 7 meters long, 1.6 meters wide and 2.3 to 2.8 meters high (depending on the number of cylinders), and a dry weight of 18.0 to 24.5 tons, makes L 23 / 30H compact motor. The height of the motor during disassembly is very small, so it is suitable in areas where the height is limited.

Economy: The L23 / 30H is designed to achieve optimal performance in heavy fuel oil (HFO) consumption. Consumption of lubricating oil is minimal.

Long period between two overhauls: with 16,000 hour intervals between two overhauls and regular short daily maintenance, the L23 / 30H has very low maintenance requirements.

Extensive monitoring and control system: all systems have built-in thermometers and manometers that allow alarm systems to be triggered. The engine contains standard shut-off functions in case of excessive speed, high cooling water temperature and low lubricating oil pressure.

Best selling MAN Diesel SE engine – Best HFO diesel generator set on the market – Over 5,000 engines currently in service

Nominal power

Engine type	900 rpm 60 Hz		750 rpm 50 Hz		720 rpm 60 Hz
Engine type	Eng. kW	Gen. kW	Eng. kW	Gen. kW	Eng. kW	Gen. kW
5L23/30H	–	–	675	645	650	615
6L23/30H	960	910	810	770	780	740
7L23/30H	1.120	1.060	945	900	910	865
8L23/30H	1.280	1.215	1.080	1.025	1.040	990

Mass and dimensions of the generator set

Motor type	A mm	B mm	C mm	H mm	Mass ton*
5L 23 / 30 (720/750)	3.369	2.155	5.524	2.383	18.0
6L 23 / 30 (720/750)	3.738	2.265	6.004	2.383	19.7
6L 23 / 30 (900)	3.738	2.265	6.004	2.815	21.0
7L 23 / 30 (720/750)	4.109	2.395	6.504	2.815	21.4
7L 23 / 30 (900)	4.109	2.395	6.504	2.815	22.8
8L 23 / 30	4.475	2.480	6.959	2.815	23.5
9L 23 / 30	4.475	2.340	6.815	2.815	24.5

* – dry weight – whole engine

Shematski prikaz MAN Diesel SE L 23 / 30

P – free passage between motors, width 600 mm and height 2,000 mm