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17.9kVA Three Phase Alternator STRO-16K
17.9kVA Three Phase Alternator STRO-16K
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28kVA Single Phase Alternator STRO-22K
28kVA Single Phase Alternator STRO-22K

25.2kVA Three Phase Alternator STRO-25K

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The StromerPower 25.2kVA Three Phase Alternator (STRO-25K) is a commercial-grade, three-phase low-voltage AC alternator engineered within a strict ISO 9001 quality assurance environment to deliver uncompromising reliability. Designed as a premium component for stationary diesel generator sets, mobile power plants, and industrial equipment, this 4-pole brushless alternator features high efficiency, low reactance, and exceptional motor-starting capacity under heavy starting loads.

  • Dual-Rating Performance: Delivers 22.9kVA Prime power and up to 25.2kVA Standby power output at a stable 50Hz frequency PF = 0.8$.
  • Advanced Voltage Regulation: Features the industry-standard SX460 AVR model maintaining a tight +/- 1\% voltage regulation to shield sensitive equipment from fluctuations.
  • Clean Power Winding: Implements a 2/3 pitch stator winding layout that cleanly suppresses lower-order harmonic distortion, keeping Total Harmonic Distortion (THD) under 5%.
  • Rugged Mechanical Interface: Built with a resilient single-bearing configuration optimised for native SAE housing flange and clutch flex plate alignment setups.
  • Industrial Grade Protection: Outfitted with an IP23 weather-protective enclosure, Class H insulation, robust steel base, and dynamically balanced rotors compliant with ISO 1940 vibration specifications.
StromerPower
SUPERIOR QUALITY AND PERFORMANCE

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

ABOUT THE ALTERNATOR
GENERAL SPECIFICATIONS

StomerPower 25.2kVA Alternator

Optimise your facility's energy production infrastructure and safeguard your internal machinery circuits with the StromerPower 25.2kVA Three Phase Alternator (Model: STRO-25K). Engineered within a highly disciplined ISO 9001 quality assurance ecosystem, this premium brushless synchronous component serves as a rock-solid powerhouse for stationary diesel generators, mobile assemblies, and emergency backup sets. Running at a synchronised 1500rpm operating threshold, its balanced 4-pole self-excited layout handles extreme motor-starting loads efficiently while preventing severe voltage dips during transient load jumps.

Configured explicitly to meet demanding three-phase commercial configurations and remote agricultural projects, the STRO-25K delivers an exceptionally stable 22.9kVA prime power output. Sourcing this genuine StromerPower industrial component guarantees that your custom generator builds, localised server nodes, cold-chain refrigeration panels, and heavy-duty electric motors receive clean, continuous electrical waves across all three phases whenever utility grid connections drop.

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ALTERNATOR DATA SHEET

Precision Voltage Regulation and Advanced Harmonic Suppression

Designed with advanced cooling airflow profiles and superior load-handling capability, it offers seamless integration into your operations without unnecessary electrical noise or downtime. Its robust construction and trusted StromerPower engineering technology make it a long-term investment in productivity and peace of mind.

StromerPower 25.2kVA Alternator Key Features

  • Reliable Power Output: With a steady 22.9kVA prime capacity, this alternator is ideal for small to medium-scale applications, ensuring dependable power supply for your business, home, or farm.
  • Silent Operation: Designed with advanced soundproofing engineering and tight structural tolerances, the unit limits vibrational noise, making it suitable for acoustic canopy enclosures.
  • Fuel Efficiency: Built with precision copper-winding geometry to optimise mechanical-to-electrical conversion efficiency, reducing overall engine fuel consumption under heavy loads.
  • Compact Durability: Featuring robust steel frame construction and a compact footprint, the STRO-25K is built to withstand harsh conditions while fitting seamlessly into standard generator bases.
  • AVR Compatibility: Fully equipped with an Automatic Voltage Regulator (AVR) module, this alternator ensures a seamless, steady voltage supply to shield sensitive electronic equipment.
  • Enhanced Safety: Equipped with critical protection safeguards, including H-class thermal insulation and IP23 ingress enclosures, guaranteeing reliable performance in humid or dusty environments.
  • Simple Operation: A spacious, oversized terminal junction box allows for straightforward wiring access, making AVR maintenance and configuration swaps incredibly simple.
  • Proven Performance: Backed by StromerPower’s reputation for engineering excellence, this low-reactance alternator delivers consistent, trusted wave profiles across complex industrial fields.

PRODUCT SPECIFICATIONS

Weight 138 kg
Dimensions 60 × 52 × 60 cm
Brand

StromerPower
Product Type

Alternator
Phase

Three Phase
Alternator Prime Power

22.5kVA
Alternator Standby Power

25.2kVA
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

SX460
Stator

2/3 Pitch
Rotor

Single Bearing
Flywheel Housing (SAE)

#4 / 7.5"
Category:
From Leading Global Facilities Straight to Your Project Site

World-Class Manufacturing, Streamlined Distribution

At LiFeTIDE, we bypass intermediate brokers to align your business directly with the world’s most advanced powertrain and electrical component manufacturing facilities. We secure tier-one access to state-of-the-art production lines including the globally acclaimed SDEC and Baudouin facilities.

Every engine, alternator, and component we source is manufactured under stringent international quality controls and rigorously tested for the harsh operational profiles of Sub-Saharan Africa.

From individual component integration for local generator builders to turnkey commercial 3-phase setups, our managed logistics network ensures seamless factory-to-site delivery, guaranteed stock availability, and uncompromised engineering integrity.

Seamless Supply and Delivery Channels

Sub-Saharan Logistics Infrastructure

Managing heavy engineering components and high-capacity standby power systems across African borders requires absolute precision, established freight channels, and ironclad regulatory compliance.

At LiFeTIDE, our logistics framework is built to handle the complex weight of heavy industrial transport. We coordinate the entire lifecycle of your asset from secure international factory container loading and local port clearance to heavy-haul overland distribution.

Whether you are a generator builder in Johannesburg requiring bulk engine shipments or a registered trade dealer anywhere in Southern Africa, we have you covered.

Our cross-border freight routes are fully optimised to navigate customs frameworks, minimise port delays, and guarantee predictable delivery timelines directly to your facility or project site.

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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 LiFeTIDE offer installation?

No, LiFeTide do not offer any installation services, but, any qualified electrician can install the Pre-Configured LiFeTIDE Loadshedding Kit.

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 if registered on our warranty form along with a valid COC and images of the installation. It is a limited warranty. The goods need to be returned to us as per our standard Terms and Conditions of Sale.

Price validity

All pricing is valid while stocks last as reflected on this website page for the product listed, as specified herein and subject to change without prior notification. Â