Mecc Alte S16W-130 Alternator — 5 KVA, single-phase, 3,000 RPM
The S16W-130 It is the fourth model in Mecc Alte's single-phase 3,000 RPM line, with a rated power of 5 KVA at 50 Hz. It is part of the S16W series, which offers five models ranging from 2.5 to 5.7 kVA, all brushless with internal capacitor regulation. Designed for compact generator sets with a 3,000 RPM engine where compact size and low weight are critical factors.
The S16W series is brushless: no brushes, no commutators, and no moving contacts. It does not require regular maintenance of these components. Voltage regulation is achieved through a capacitor built into the alternator itself.
Technical characteristics
Rated power (50 Hz): 5 kVA / 5 kW (power factor 1)
Output voltage: 230 V single-phase
Frequency: 50 Hz
Speed: 3,000 RPM
Phases: 1
Excitation type: regulation via built-in capacitor (25 µF)
THD: less than 6%
Full-load performance (cos φ = 1): 77%
Technology: brushless, no brushes or commutators, maintenance-free
Protection rating: IP21 (IP23 available upon request)
Insulation class: H
Impregnation: tropicalized epoxy resin, resistant to high-humidity environments
Housing: high-strength die-cast aluminum alloy
Shaft: C45 steel with open-style fan
Sound level: 56 dBA at 7 m / 72 dBA at 1 m
Maximum operating temperature: 40°C at altitudes below 1,000 m
Weight: 21 kg
Country of manufacture: Italy
Certifications: EN 60034-1, IEC 34-1, VDE 0530, BS 4999-5000, NF 51.111
Directives: 2006/42/EC, 2006/95/EC, 2004/108/EC
Electromagnetic compatibility: EN 61000-6-3, EN 61000-6-1
Complete S16W Series
S16W-90: 3.5 kVA, 16.1 kg
S16W-105: 4.1 kVA, 17.7 kg
S16W-130: 5 KVA, 21 kg (this product)
S16W-150: 5.7 kVA, 23.7 kg
Available coupling options
B9 — Bevel shaft coupling in B9 configuration.
J609b — Larger-diameter bevel shaft coupling, variant J609b.
Free-hub kit (B3B14) — Allows for pulley-and-belt mounting for motors without a bevel gear, compatible with previous models.
Dimension drawings for each coupling are available in the "Manuals" section of this page.
FAQ
Does the S16W-130 require any external capacitors?
No. The 25 µF excitation capacitor is built into the alternator and comes pre-installed from the factory. You do not need to purchase or install any additional components.
Why isn't the J609a coupling available on this model?
The J609a coupling is available only up to the S16W-105 model. Starting with the S16W-130, due to the assembly dimensions, the available bevel shaft couplings are B9 and J609b. If you have any questions about which coupling is compatible with your motor, please contact us before placing your order.
How often should maintenance be performed?
Since it is brushless, there are no brushes, commutators, or moving contacts to check. Maintenance is limited to cleaning the exterior and periodically checking the connections and bearings, following the intervals specified in the manual.
Can I use this alternator to power inductive loads?
Capacitor-based regulation is less responsive to sudden inductive loads than AVR electronic regulation. It is suitable for typical resistive and mixed loads. If your application involves frequent starts of high-power motors, please consult our technical team before selecting a model.
You can contact us by phone or email. We will be happy to advise you throughout the entire purchasing process.