6kVA Online Double Conversion UPS — Rack or Tower
R17 238.50 incl. VAT
6kVA / 5.4kW online double conversion UPS for servers, networking equipment, medical devices, and critical business loads. True online topology provides zero transfer time on power failure — zero disruption to connected equipment. Pure sine wave output, power factor correction input, LCD display, and SNMP/USB communications. Rack-mountable (2U) or tower-standing. Built-in cold-start capability and generator-compatible input.
Estimated Delivery Timeline
Delivery timelines are estimates. Orders typically arrive within 3–5 business days after payment is confirmed.
6kVA Online Double Conversion UPS — True Zero-Transfer Protection for Critical Systems
When load shedding hits, standby UPS systems take 10–20ms to switch. For servers, sensitive manufacturing equipment, and medical devices, that’s too long. The 6kVA online double conversion UPS provides true zero-transfer-time protection — the connected equipment never experiences a power interruption, because it is always running on the UPS inverter output, never directly from the mains.
Key Specifications
- Capacity: 6kVA / 5,400W
- Topology: True Online Double Conversion
- Output: Pure sine wave, regulated 220V ±1%
- Transfer Time: Zero (0ms)
- Input Range: 110–300V (wide tolerance, generator-compatible)
- Battery Type: Internal VRLA / external battery cabinet option
- Typical Runtime: 8–12 minutes at full load (internal batteries)
- Form Factor: 2U rack-mountable / tower-standing (convertible)
- Communication: USB, RS232, dry contact, SNMP card slot
- Display: LCD with battery, load, and input/output status
- Efficiency: Up to 94% online, 99% ECO mode
- Warranty: 2 years
Why Online Double Conversion?
Online double conversion UPS systems convert incoming AC to DC, then back to pure AC — this means the output is always perfectly regulated, free from surges, sags, harmonics, and frequency variations. Connected equipment runs on clean, stable power 24/7. This is essential for servers, medical equipment, telecommunications, and precision manufacturing.
Load Shedding in Business Environments
South African businesses face up to 12 hours of load shedding per day at Stage 6. A 6kVA UPS with an external battery cabinet can provide 2–4 hours of runtime for critical server rooms, allowing businesses to maintain operations through all standard load shedding slots.
Generator Compatibility
The 6kVA UPS’s wide input range (110–300V) tolerates generator voltage instability without switching to battery. This is critical when using a backup generator — lesser UPS systems will reject generator power and run on battery unnecessarily.
FAQ
What is the difference between online and offline/standby UPS?
An offline UPS runs connected equipment directly from mains and switches to battery when power fails — this takes 10–20ms. An online UPS always runs connected equipment through the inverter, so there is zero transfer time. Online UPS systems are required for servers, data centres, and sensitive medical equipment.
Can the 6kVA UPS connect to an external battery bank?
Yes. An external battery cabinet port allows connection of additional battery strings, extending runtime from 10 minutes to several hours at full load. Contact us for external battery cabinet pricing.
How does this UPS handle generator power?
The 6kVA UPS accepts generator power within its 110–300V input range. It regulates the generator’s typically unstable output into clean, stable power for connected equipment.
2 reviews for 6kVA Online Double Conversion UPS — Rack or Tower
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Siviwe Njokweni –
The 6kVA Online Double Conversion UPS — Rack or Tower is excellent quality and works perfectly for our application. Very satisfied with the product and with PowerVault as a supplier. Delivery was fast and the customer service was helpful when I had a pre-sale question.
Luthando Gqoboka –
Ordered the 6kVA Online Double Conversion UPS — Rack or Tower and it arrived within a few days. Quality is exactly as described and performance has been great. PowerVault is a reliable supplier and I would recommend them to anyone looking for solar and energy products.