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Inmesol AK-044 40kVA 33KW Three Phase Open Diesel Generator 400V

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  • Open Three Phase Diesel Generator
  • Prime power 40 kVA
  • Standby power 44 kVA
  • Engine Kohler (KDI2504TM)
  • Alternator (MECC-ALTE ECP 32-3S / 4)
  • Voltage: 400/230
  • Automatic Start – from 2 wire signal.
  • Complete with manual control panel

Powered by the internationally renowned Kohler KDI2504TM 1500rpm diesel engine the Inmesol AK-044 40kVA 33kw three phase open diesel generator is the ideal solution for your power needs. Part of the industrial manual start range this generator has been designed for installation in an area where there is no mains supply or when there is a MAINS failure. This unit also has an automatic start – from 2 wire signal.


The 40kVA produced by the Inmesol AK-044 comes by means of the water-cooled KDI2504TM Kohler diesel engine. Producing power ratings of; Standby power 44 kVA and prime power 40 kVA.

Open Generator

An Open Generator is a generator that does not have a fixed canopy for ease of installation and maintenance. An open generator has heaps of advantages such as maintenance to keeping it running at optimum performance.

See the Inmesol AK-033 datasheet for full specifications or see the instruction manual in the download tab.

What regulations does the Inmesol AK-044 have?

The Inmesol AK-044 genset holds “CE” marking, and the corresponding Declaration of Conformity is issued with each unit, in which it specifies that the generator complies with R.D 842/2002 Low Voltage Regulations and with the European Directives:

  • 2006/42 on Safety in Machinery.
  • 2006/95/CE on Electrical Safety.
  • 2004/108/CE on Electromagnetic Compatibility.
  • 2005/88/CE on NOISE EMISSIONS by equipment for outdoor use (for soundproof generator sets).

Whatever the brand of Generator Hampshire Generator & UPS Company can assist with service, maintenance and repair. Planned routine servicing or emergency service we cover it all.

INMESOL generator range


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Main Features

Frequency Hz 50
Voltage V 400
Power factor cos ϕ 0.8
Phase 3

Power Rating

Standby power LTP kVA 45,4
Standby power LTP kW 36,3
Prime power PRP kVA 41,3
Prime power PRP kW 33,0

Engine specifications

Engine manufacturer Kohler
Model KDI2504TM
[50Hz] Exhaust emission level Stage II
Engine cooling system Water
Nr. of cylinder and disposition 4 in line
Cylinder capacity (L) 2.482
Aspiration Normal
Speed governor Mechanical
Prime gross power PRP 37.30
Maximum gross power LTP kW 41.00
Oil capacity L 11.50
Lube oil consumption @ PRP (max) % 0.10
Coolant capacity L TBC
Fuel Diesel
Starting system Electric
Starting motor size tbc
Electric circuit V 12

Alternator Specifications

Alternator MECC-ALTE
Model ECP 32-3S / 4
Voltage V 400
Frequency Hz 50
Power factor cos ϕ 0.8
Poles 4
Type Brushless
Standard AVR DSR
Voltage tolerance % 1
Efficiency @ 75% load % 89.10
Class H
IP protection 23

Dimensional data

Length (L) mm 1700
Width (W) mm 730
Height (H) mm 1614
Dry weight Kg 660 approx
Fuel tank capacity L 105
Fuel tank material steel

When will I receive my order?

In most cases, a product on our website will give you an indication of the current stock availability, but shipping is not uniform for all products. We maintain fantastic relationships with all of our suppliers and we aim to get products to customers within 3 business days of the order being taken. This availability is based on information from our suppliers and from sales and supply patterns. The availability information given is a guide only and not a guarantee as there are external factors that we may not have control over.

Coronavirus Update – UK couriers and transport companies will not currently guarantee delivery times and we are seeing a slight delay in deliveries – please bear this in mind when ordering.

1500rpm machines or larger diesel gensets however are typically priced on application and all depend on the destination. We will be happy to quote on any large diesel generator and discuss your needs over the phone or via email.

Most orders placed before 12pm on a business day will be shipped from our suppliers on the same day provided the product is in stock. If you need to be certain an item is in stock and available, or if you need a lead time, it’s worth calling our sales team on 01329 722390. Pricing for extended shipping areas like Northern Ireland, the Scottish Highlands and outlying Islands, Outer Hebrides, Channel Islands, Isle of Man, Scilly Isles, and other postcodes not considered as UK mainland can be obtained also by calling our offices.

Please note that the processing of a payment and acknowledgement email does not constitute a legally binding contact. In the case of mispricing, changes in stock quantity, or if we believe the machine will be misused, we reserve the right to cancel the order and provide a full refund.

Heavy Items

You will be contacted by phone after ordering a larger item to confirm a delivery date before your order is dispatched. Large or heavy items are dispatched through a pallet network, so if we can’t get in contact with you, we may be unable to send out your item on a next day delivery. Please be sure to include a working phone number with your order.

Heavy items will require the recipient to make arrangements to take delivery of the goods and may require the recipient to help the courier unload the item. For items that are delivered on a pallet the courier will leave the pallet as close to your door as possible.

1500rpm diesel generators will require forklift (or similar) offloading; if this is not available then we can arrange a Hiab offload at an additional price – please call us to discuss any delivery requirements.


Inmesol AK-044 40kVA 33KW Three Phase Open Diesel Generator 400V

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