743kVA Three Phase Alternator STRO-715K

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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 StromerPower STRO-715K is a 743kVA three phase alternator put together under a strict ISO 9001 quality system. This 4 pole brushless unit gives you the power needed to run automated fabrication setups, large diesel generators or pumping networks without letting line voltage drop across the site.

  • Power capacity: It delivers a steady 675kVA prime power output and scales up to 743kVA standby for emergency outages (50Hz at 0.8 power factor).
  • KR440 voltage regulation: The factory installed automatic voltage regulator keeps output within 1%. This prevents sudden voltage sags from damaging equipment.
  • Winding design: It utilises a 2/3 pitch stator layout to suppress harmonic noise.
  • Rugged protection: The single bearing design aligns with SAE housing flanges and clutch flex plates. The alternator uses a heavy steel base, Class H thermal insulation and an IP23 weather enclosure.

We offer delivery across Sub-Saharan Africa at the best prices.

SUPERIOR QUALITY AND PERFORMANCE

StromerPower sets new global standards in all aspects, from design, manufacturing, material selection, production and testing equipment, tooling, and quality control.

GENERAL SPECIFICATIONS

StomerPower 743kVA Alternator

If you are putting together a heavy duty backup system for a large manufacturing site or a major commercial centre, the StromerPower STRO-715K fits is a great choice. It is a 743kVA three phase alternator manufactured under a strict ISO 9001 quality system. Operating at a standard 1500rpm, this 4 pole brushless unit gives you the industrial power needed to run automated fabrication setups and commercial properties effortlessly.

StromerPower 743kVA (STRO-715K) Alternator Features

  • Power capacity: It delivers a steady 675kVA prime power output for continuous operations and hits a 743kVA standby limit during emergency outages (50Hz at a 0.8 power factor).
  • KR440 voltage regulation: The factory installed automatic voltage regulator keeps line output within a tight 1% margin, preventing sudden voltage sags from damaging sensitive electronics or fine controls.
  • Winding geometry: It features premium insulated copper windings and a 2/3 pitch stator layout that suppresses lower order harmonics.
  • Vibration and balance: Internal components are dynamically balanced to limit running resonance, which preserves bearing life when the unit is operating inside a generator canopy.
  • Frame build: Built with an IP23 casing with Class H thermal protection.
  • Technician access: The oversized terminal box gives your service teams immediate access for quick terminations, phase balancing and regular AVR adjustments.

PRODUCT SPECIFICATIONS

Weight 1459 kg
Dimensions 139 × 84 × 113.5 cm
Brand

StromerPower

Product Type

Alternator

Phase

Three Phase

Alternator Prime Power

675kVA

Alternator Standby Power

743kVA

Rated Frequency

50Hz

Voltage

400V

Voltage Regulation

+/- 1%

Voltage Regulation Change (% UN)

+/- 1%

Phase Change Rate (%)

+/- 1%

Power Factor

0.8

Insulation Class

H

Alternator Type

IM B35

Connection and Pole

4 Pole, Star

AVR Model

KR440

Stator

2/3 Pitch

Rotor

Single Bearing

Flywheel Housing (SAE)

#1 / 14"

Category:
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.

Do you offer installation?

No, we do not offer any installation services, but, any qualified electrician can install our products.

Does the price include delivery?

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

Tell me about the Warranty

Our product warranty is detailed on each product page and as per our standard terms along with a valid COC. It is a limited warranty.

Price validity

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