KSTAR UCR — online UPS 6–10 kVA 3:1 rack/tower
KSTAR UCR is a double-conversion online UPS rated 6–10 kVA with three-phase input and single-phase output. The case can be rack-mounted or used as a tower. The UPS is controlled by a DSP processor and supports N+X parallel redundancy for critical IT loads.
- Power
- 6–10 kVA
- Phase configuration
- 3:1
- Power factor
- 0.9
- Version
- rack/tower, rotatable display
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
USK ENERGY supplies KSTAR equipment as an official partner of the manufacturer. All KSTAR products
Description
KSTAR UCR is an online UPS rated 6–10 kVA with a 3:1 phase ratio, that is, three-phase input and single-phase output. The power factor is 0.9. The case is convertible, so the unit is mounted in a rack or placed separately as a tower. This flexibility is useful in server rooms and communication nodes, where the equipment layout changes over time.
It is based on a true double-conversion topology controlled by a digital signal processor (DSP). The input voltage is first rectified and then converted back to AC, so the load is isolated from the mains. The manufacturer describes this as protecting the critical load from any short-term disturbances and voltage deviations. At the output the UPS forms a clean voltage with better parameters than the mains. The UPS takes power from a three-phase mains and supplies the output loads with a single phase, so the series is chosen when three phases come from the switchboard and the equipment needs one. DSP control reads the parameters in real time and keeps the output within the set limits.
To improve availability, parallel operation in an N+X configuration is provided. Redundant units are added to the required number of units that carry the load, and the failure of one of them does not stop the power supply. This structure increases system availability and the mean time between failures (MTBF), which is essential where equipment downtime is unacceptable. The manufacturer directly names parallel redundancy as a means of protecting critical devices.
The display is rotatable, the screen rotation direction is set in the settings, so the readings are equally convenient to read in a rack and in the vertical position. The emergency power off (EPO) function is provided. In the manufacturer's catalog the series is classed as transformerless online UPS.
When selecting KSTAR UCR, the load power is checked against the rating of 6–10 kVA and the power factor of 0.9 is taken into account, since it determines the active power the UPS delivers. Whether N+X parallel mode is needed and how many units to keep in reserve are decided separately. The battery type and quantity, as well as the options for connection to a monitoring system, are specified on request, because they are not given in the available data.
Technical specifications
| Power | 6–10 kVA |
|---|---|
| Phase configuration | 3:1 |
| Power factor | 0.9 |
| Version | rack/tower, rotatable display |
| Redundancy | N+X parallel operation |
| Functions | EPO |
Request a price and lead time
KSTAR UCR — online UPS 6–10 kVA 3:1 rack/tower. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What are the power and phase configuration of KSTAR UCR?
The series covers 6–10 kVA with a 3:1 phase ratio, that is, three-phase input and single-phase output. The power factor is 0.9.
Can several KSTAR UCR UPS be connected in parallel?
Yes, N+X parallel operation with redundant units is provided. This increases availability and the mean time between failures.
What version is KSTAR UCR supplied in?
It is a convertible rack/tower case, mounted in a rack or used separately. The display is rotatable and there is an EPO function.
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