12kVA Single Phase Alternator STRO-13K

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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 12kVA Single Phase Alternator (STRO-13K) is a high quality, brushless alternator designed for diesel generators, mobile power units and electrical equipment. It delivers solid motor starting capacity, making it easy to run essential workshop tools and residential backup systems under demanding conditions.

  • Power Capacity: Supplies 12kVA power at a steady 50Hz frequency.
  • Automatic Voltage Regulation: The SX460 AVR keeps voltage stable within 1%, protecting sensitive electronics from sudden spikes.
  • Clean Electrical Output: Utilises a low distortion winding layout to keep total harmonic distortion under 5% for a smooth, reliable supply.
  • Durable Single Bearing Design: Engineered for straightforward alignment with standard SAE 4 engine housings and SAE 7.5 clutch flex plates.

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 12kVA Alternator

The StromerPower STRO-13K is a dependable 12kVA single phase alternator built for diesel generators assembly, mobile power units and business facilities. Running at a standard 1500rpm, this 4 pole brushless unit is designed for workshop setups, agricultural equipment and residential backup systems. It provides a steady electrical output to keep essential tools and appliances running normally when grid power is unavailable.

StromerPower 12kVA Alternator Key Features

  • Reliable Dual Ratings: Supplies a continuous 12kVA standby output for emergency backup (50Hz, PF = 1).
  • Built In AVR: Equipped with an industry-standard SX460 Automatic Voltage Regulator module to maintain a tight 1% voltage regulation, to protect equipment from fluctuations.
  • Low Distortion Windings: Features a 2/3 pitch stator layout that cleanly filters out harmonic waves, keeping total harmonic distortion low.
  • Vibration Resistant Build: Outfitted with a heavy duty steel base and rugged structural shields engineered to absorb continuous vibrations from high output diesel engines.
  • Precise Engine Matching: Utilises a single bearing configuration optimised for alignment with native SAE 4 housing flanges and SAE 7.5 clutch flex plates.
  • Industrial Protection: Protected by an IP23 weather resistant shell combined with Class H thermal insulation to withstand dusty or humid environmental conditions.
  • High Starting Capacity: Engineered with a brushless self excited layout that comfortably handles high initial current draws and non linear loads without tripping breakers.
  • Certified Manufacturing: Produced inside an ISO 9001 certified quality environment with strict raw material selection to guarantee long-term field uptime.

PRODUCT SPECIFICATIONS

Weight 107 kg
Dimensions 53 × 52 × 58 cm
Brand

StromerPower

Product Type

Alternator

Phase

Single Phase

Alternator Prime Power

10.8kVA

Alternator Standby Power

12kVA

Rated Frequency

50Hz

Voltage

230v

Voltage Regulation

+/- 1%

Voltage Regulation Change (% UN)

+/- 1%

Phase Change Rate (%)

+/- 1%

Power Factor

1

Insulation Class

H

Alternator Type

IM B35

Connection and Pole

4 Pole, Series

AVR Model

SX460F

Stator

2/3 Pitch

Rotor

Single Bearing

Flywheel Housing (SAE)

#4 / 7.5"

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