3kVA true online UPS with a full 3000W output

The Symphony SPY3000RMi2U is a 3kVA single-phase, online double-conversion UPS designed by Uniti Power for server racks, network and communications rooms, healthcare systems and other critical 230V equipment. With an output power factor of 1.0 it supplies the full 3000W, switches to battery with no break in supply, and installs in 2U of a 19-inch rack or stands upright as a tower.

The inverter supplies the load continuously, so connected equipment is isolated from power cuts, sags, surges, frequency variation and electrical noise. Output voltage is regulated to within ±1%, and online efficiency of up to 93% keeps running costs and heat output down in busy server and comms spaces.

Where the SPY3000RMi2U is used

Typical applications include server rooms and data networks, enterprise and edge computing, telecoms and networking equipment, healthcare and laboratory systems, and industrial control.

Power quality and efficiency

• 0ms transfer to battery: the output carries on without interruption when the mains fails.
• Regulated output: ±1% voltage accuracy, under 1% THDv on linear loads and a 3:1 crest factor.
• Wide input window: 160-300V at full load, and down to 110V with derating, so normal voltage dips are handled without using the batteries.
• Low input distortion: input power factor above 0.99 and THDi below 5%.
• Efficiency: up to 93% in online mode and up to 97% in ECO mode, with a 10ms transfer back to the inverter from ECO.
• Frequency converter mode: 50Hz / 60Hz conversion (CVCF) at up to 60% load.

Runtime and battery expansion

Six internal 12V 9Ah batteries (72V DC) give a typical 3.5 minutes at the full 3000W load and 9.1 minutes at 1500W. Up to four EBM7218RT2U external battery modules can be connected for longer outages, each one a matching 2U rack/tower unit.

The 1.5A charger brings the internal batteries back to 90% in around 3 hours. Use the Run Time tab to estimate runtime at your own load.

Runtimes are typical values for new, fully charged batteries at 25°C, provided as a guide only. Actual runtime depends on battery age, temperature and the type of load.

Outlets and installation

The SPY3000RMi2U has an IEC C20 input and nine outlets: a main group of 1 x IEC C19 and 4 x IEC C13, plus a programmable group of 4 x IEC C13. The programmable group can be switched off during an outage, so non-essential equipment is shed and the most important loads run for longer.

The unit measures 438 x 605 x 86.5mm (2U). Rack ears and tower feet are included, the optional SPYRAIL1-3 rail kit supports it in a 19-inch cabinet, and the dot-matrix LCD rotates for rack or tower use.

Monitoring, communications and safe shutdown

Standard interfaces are USB (HID), RS232, a programmable dry input and output, and an emergency power off (EPO) input. The intelligent slot takes an optional network management card, Modbus card or AS400 dry-contact card, and an optional WLAN module is available. WinPower G2 monitoring software gives live status, alarms and controlled shutdown of connected servers.

Standards, warranty and support

The SPY3000RMi2U is CE marked and built to IEC/EN 62040, the international standard for UPS systems. It meets Category C2 for conducted and radiated emissions, with immunity tested to IEC/EN 61000-4-2, -4-3, -4-4 and -4-5.

Registered Symphony products in the UK carry a 6-year warranty on the UPS electronics and 2 years on batteries and accessories, from the original date of purchase. Installation and commissioning is recommended but is not a condition of the warranty. See warranty information for full terms, and register your UPS once it is installed.

What's in the box

SPY3000RMi2U UPS, 1 x 10A output cable, USB cable, rack ears, tower feet and user manual. An input power cable is not included. An RS232 cable and the SPYRAIL1-3 rail kit are available separately.

Symphony SPY3000RMi2U questions answered

Is the Symphony SPY3000RMi2U a true online UPS?
Yes. The SPY3000RMi2U is an online double-conversion UPS, so the inverter powers the load at all times and the transfer to battery is 0ms.

How much load can the SPY3000RMi2U support?
Up to 3000W. Its output power factor is 1.0, so the VA and watt ratings are equal. In line mode it carries 105-125% overload for 3 minutes and 125-150% for 30 seconds.

How long will the SPY3000RMi2U run on battery?
About 3.5 minutes at full load and 9.1 minutes at half load on its internal batteries, extending to 67.4 minutes at full load and 155.0 minutes at half load with four EBM7218RT2U modules.

What input connection does the SPY3000RMi2U use?
An IEC C20 inlet. The input power cable is not supplied in the box.

Can SPY3000RMi2U units run in parallel?
No, this model does not support parallel operation. For parallel capacity or redundancy, the Symphony 6kVA and 10kVA models accept the SPYPK parallel card.

How do I buy the SPY3000RMi2U?
Request a quote on this page, call 0845 561 0560, or find a Uniti Power partner near you.

Runtime figures are taken from the Symphony Range Brochure (V1.2025, PDF). Full specifications are in the SPY3000RMi2U datasheet (PDF).