440kVA Three Phase Alternator STRO-440K

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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 440kVA Three Phase Alternator (STRO-440K) provides reliable power for high yield generator builds, commercial and industrial applications. Assembled under a strict ISO 9001 quality system, this 4 pole brushless unit gives engineers the ability handle heavy industrial starting loads without forcing sudden sags across facility distribution lines.

  • High capacity output: Delivers a reliable 400kVA prime capacity for continuous running and up to 440kVA standby output for emergency grid drops at 50Hz.
  • AS440 AVR control: Fitted with an automatic voltage regulator that manages line drops to secure your power.
  • Low reactance windings: High purity copper windings reduce internal power losses to maintain a clean sine wave.
  • Rugged industrial frame: Built on a thick steel mounting base with an IP23 weather protective shell and Class H insulation to withstand high heat and dusty environments.

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 440kVA Alternator

StromerPower STRO-440K is ideal for a new or replace an alternator for a large generator builds , a manufacturing line or a retail centre. This is a 440kVA three phase alternator put together under a strict ISO 9001 quality assurance system. Operating at a steady 1500rpm, the 4 pole brushless synchronous machine gives engine builders the rugged component needed to manage surges without letting line voltage drop.

StromerPower 440kVA (STRO-440K) Alternator Features

  • Power capacity: It handles a continuous 400kVA prime power load and 440kVA standby for emergency backup scenarios (50Hz).
  • AS440 voltage control: The factory fitted automatic voltage regulator protects sensitive electronics.
  • Copper core efficiency: Built with high purity copper windings improve fuel efficiency and provide reliable power.
  • Vibration and alignment: A dynamically balanced rotor limits resonance and prolongs bearing life.
  • Chassis and insulation: Built with a heavy gauge steel base, an IP23 weather enclosure with Class H insulation to resist dust and high ambient heat.
  • Terminal hub access: The terminal box allows electrical service teams plenty of room for quick line terminations, phase balancing and routine regulator adjustments.

PRODUCT SPECIFICATIONS

Weight 955 kg
Dimensions 125 × 77 × 107 cm
Brand

StromerPower

Product Type

Alternator

Phase

Three Phase

Alternator Prime Power

400kVA

Alternator Standby Power

440kVA

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, Series Star

AVR Model

AS440

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