125kVA SDEC Silent Diesel Generator 3-Phase

Need help choosing the right Generator?

Bradley: +27 62 743 5089 | bradley@sdecpower.co.za
Ruan: +27 66 511 2009 | ruan@sdecpower.co.za

We offer industry leading 24 month / 1,000 hour warranties on our engines and diesel generators.

The SDEC 125kVA Silent Diesel Generator delivers strong three phase power built to run medium sized factories, large commercial offices, large agricultural setups and industrial workshops. It combines high performance while lowering your running costs through excellent fuel economy. Complete with an automatic transfer switch, this unit ensures your business keeps moving forward.

  • 138kVA standby power at 230/400v @ 50Hz 1500rpm
  • 330 litre tank: 15 Hours runtime @ 75% load
  • High-quality and reliable SDEC four-cylinder water-cooled 4HTAA4.3-G22 diesel engine
  • Starts & Stops Automatically
  • ATS Included
  • Maintenance-free Battery
  • Silent canopy which can stand outside with lockable doors

 

We offer delivery across Sub-Saharan Africa on all our generators at the best prices.
RELIABLE POWER GENERATION

SDEC was founded in 1947 and is a diesel engine manufacturer. They are ISO9001, QS9000 and TS16949 certified, which is testament to their quality and reliability.

GENERAL SPECIFICATIONS

SDEC 125kVA Diesel Generator

Dependable Performance

The SDEC 125kVA Silent Diesel Generator delivers strong three phase power built to handle demanding commercial loads and industrial machinery. This unit combines reliable performance with advanced sound attenuation to keep engine noise low while easily handling heavy electrical loads. Whether you are running a medium factory, a large office block or a busy agricultural facility, it provides the steady muscle you need to keep operations going.

Robust & Reliable

Choosing this 125kVA model ensures your equipment runs smoothly and your operations stay right on schedule. It delivers a strong, efficient, and highly dependable power source you can rely on every single day. Get in touch with us today to find out more about this system and secure a power solution tailored to your business.

Built for Demanding Sites

The SDEC 125kVA Silent Diesel Generator delivers strong three phase power built to handle commercial loads and industrial machinery. It packs high capacity output into a rugged, quiet frame that keeps engine noise to a minimum. Designed for excellent fuel economy and long term reliability, it is the perfect choice for keeping workshops, office blocks and mid sized factories running smoothly during grid failures.

125kVA SDEC Generator Key Features

  • High Power Capacity: Supplies a stable 125kVA output to easily run factory machinery, commercial tools, and large office buildings.
  • Quiet Performance: Advanced sound proofing keeps noise levels down.
  • Great Fuel Economy: Engineered to optimise fuel use, giving you much longer runtimes and lower daily operating costs.
  • Built to Last: Constructed from premium, weather resistant materials designed to handle tough site conditions year after year.
  • ATS Included: Comes complete with an Automatic Transfer Switch that instantly changes your power over the second a blackout hits.
  • Built in Safety: Keeps your equipment safe with built in overload protection and automatic shutdowns if the engine runs too hot.
  • Simple Digital Controls: An easy to use control panel with a clear digital screen lets you monitor performance and track vitals in real time.
  • Trusted Global Brand: Backed by SDEC's long standing reputation for high quality engineering and reliable backup power.
Engineered for Performance and Easy Maintenance

Premium Build Features

  • Smart Power Management: Equipped with an intuitive controller that automates your backup cycles and lets you monitor engine vitals and performance in real time.
  • Advanced Sound Attenuation: Built with a highly insulated canopy and optimised ventilation slots that keep engine noise to a strict minimum without risking overheating.
  • Extended Runtimes: Features a long-range fuel tank built right into the bottom base frame, allowing the generator to run through prolonged grid failures without requiring immediate refills.
  • Hassle Free Servicing: Designed with quick access maintenance doors, easy to reach service filters and clear connection points so technicians can handle installation and maintenance.
  • Site Ready Security: The heavy duty enclosure features lockable handles to protect internal assets, stainless steel structural mounts and dedicated rigging points for safe transport.
  • Maximum Operational Safety: Features a prominent external emergency stop button to instantly shut down the system if needed, alongside automatic safety protections for high temperatures.
  • Factory Tested and Ready: Every generator arrives 100% inspected, fully tested and complete with a heavy duty battery and charger setup so it is ready for immediate site installation.

PRODUCT SPECIFICATIONS

Weight 1600 kg
Dimensions 250 × 111 × 147 cm
Brand

SDEC

Product Type

Diesel Generator

Phase

Three Phase

Standby Power

138kVA

Prime Power

125kVA

Warranty

1000 hour, 24 Months

Category: Tag:
A partner in power generation

World-Class Manufacturing, Fast Regional Distribution

We source and manufacture high quality generators, engines and parts directly from leading global factories, including SDEC. By dealing with us directly, you cut out the middlemen, saving you time and money.

Every engine, alternator, and spare part we supply is built to international standards and fully tested to handle South African conditions. Whether you are a local generator builder looking for loose components or a business needing a complete commercial power setup, we ensure fast delivery, guaranteed stock availability, and dependable performance.

SDEC FACTORY | ROBOTIC ENGINE MANUFACTURING ASSEMBLY LINE

Our Delivery Channels

Sub-Saharan Logistics

We ship SDEC engines, diesel generators, alternators and parts throughout South Africa and across the continent, including Namibia, Botswana, Malawi, Mozambique, Zambia, Zimbabwe, Swaziland, and Lesotho.

Our team handles the entire logistics process, from factory  loading to cross-border transport, ensuring your equipment arrives safely and on time.

We hold a large volume of stock and genuine replacement parts at our warehouses so we can supply clients across Africa quickly and efficiently.

FREQUENTLY ASKED QUESTIONS

Does the price include installation?

No, installation is not included in the price. Any qualified electrician can install the kit and provide a Certificate of Compliance (COC) for the installation as per legislation.

Is everything included in the price?

Yes, our silent generators all include silent canopies and automatic transfer switches (ATS). Delivery and installation are not included as noted above. Accessories and customisations can be included as required, speak to our sales team for more information.

Does the price include delivery?

Delivery is not included in any of the prices. However, delivery will be calculated on your quote based on your location and product selection.

Tell me about the Warranty

The warranty is as per the stated terms per product. Please refer to our standard terms and conditions for more information.

Price validity

All pricing is valid while stocks last as reflected on your quotation, as specified therein.  

All ratings are stated at sea level and de-rating will be applicable for both altitude and temperature variations.

It is important to note that a qualified electrician measures how many Amps per phase you will need to draw on site for your running load and your maximum first-step load.