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Single-phase Generators 1500 rpm IS Series

Mase Marine Generators IS Series

The Mase IS Series is equipped with a built-in intercooler system: the air inside the soundproof cabin is cooled by sea water, through an air/water exchanger.

Mase Marine Generators IS Series

The Mase IS Series is equipped with a built-in intercooler system: the air inside the soundproof cabin is cooled by sea water, through an air/water exchanger.
This system allows for optimal performances whatever the ambient temperature.
Engine, power generator and soundproof cabin mounted on a double vibration dampening system.
Soundproof cabin reinforced with an aluminum frame.

Accessories :
 GS003 Remote ON/OFF Switch – 138x95mm – 20m cable
Ref: GS921 CBU Remote Control Panel – Digital Display – 10m cable
Ref: YJ157 Swing Arm Type Senders – 10-180 Ω – Fuel Level w/ Feed & Return Line (dia.: 8mm), voltage: 12 / 24 V. Admissible tank depth: from 150 to 500mm.

Ref. Model Max.power Nominal power Engine Noise
level @7m
Weight Exhaust OD
Service Kit Installation Kit
GS770 IS7.0 6,7kW 6,2kW YANMAR 3cyl. 12,5HP 49dB (A) 760x530x625mm 230kg 50mm GS707 GS510
GS090 IS9 9kW 8,2kW YANMAR 3cyl. 15,4HP 49dB (A) 837x568x688mm 295kg 50mm GS707 GS510
GS120 IS12 11,2kW 10,2kW YANMAR 3cyl. 18,4HP 50dB (A) 985x585x730mm 344kg 50mm GS708 GS513
GS131 IS13.1 13,1kW TURBO 12,6kW YANMAR 3cyl. 19,1HP 50dB (A) 985x585x730mm 390kg 50mm GS709 GS513
GS160 IS16 15,3kW 13,9kW YANMAR 4cyl. 24,5HP 52dB (A) 1115x585x730mm 400kg 50mm GS710 GS513
GS201 IS20.1 20,1kW TURBO 18,7kW YANMAR 4cyl. 29,3HP 50dB (A) 1115x585x730mm 465kg 75mm GS711 GS515
IS24 26kW 24kW YANMAR 4cyl. 47HP 54dB (A) 1125x630x830mm 625kg 75mm GS515
IS27 29kW 27kW YANMAR 4cyl. 47HP 54dB (A) 1125x630x830mm 625kg 75mm GS515
Hose diameter: diesel: 8mm, water: 16mm.
  • Service Kit: zinc anodes, thermal switches, fuses, belts, impellers, filters (oil, fuel, air), capacitors, start relay, oil pressure switch.
  • Installation Kit: air vent w/valve, waterlock, exhaust hose w/ outlet, goose neck, nickel-plated bronze water strainer, fittings, seacock, stainless steel hose clamps.

Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in Greece will be shipped by TNT, UPS, DHL and more depending on the weight and size of the product.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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