Parallel operation for Symphony 6kVA and 10kVA UPS

The SPYPK is the parallel card designed by Uniti Power for the Symphony 6kVA and 10kVA UPS (SPY6KiRTB and SPY10KiRTB). It enables up to three Symphony units to operate together in parallel, either to expand capacity beyond a single UPS or to provide N+1 redundancy, for mission-critical sites where one UPS is not enough or a single point of failure is not acceptable.

Parallel operation lets a Symphony installation grow with the load or build in resilience. In a capacity design, the paralleled units share a load that is larger than one UPS can carry. In an N+1 design, the system includes one more UPS than the load requires, so the protected equipment stays supported if one unit develops a fault or is taken out for maintenance.

Where the SPYPK is used

Parallel Symphony systems suit data centres and IT networks, enterprise and edge computing, telecommunications, healthcare and laboratories, and industrial and manufacturing sites with loads that cannot afford downtime.

Compatibility

• Supported models: Symphony SPY6KiRTB and SPY10KiRTB, where parallel operation is an option for up to 3 units.
• Not supported: the Symphony 1.5kVA and 3kVA models (SPY1500RMi2U and SPY3000RMi2U) do not offer parallel operation.
• Configurations: increased capacity or N+1 redundancy.

Supported model combinations, interconnection hardware and operating topology should be confirmed for your selected Symphony models with Uniti Power technical support before the system is specified.

Design, installation and commissioning

Because parallel operation affects the complete electrical architecture, the SPYPK should only be specified as part of a correctly engineered UPS system, with the right cabling and commissioning. The Symphony 6kVA and 10kVA UPS are connected through hardwired L / N / PE terminals, so professional installation and commissioning is recommended, and a site survey is a sensible first step for a new parallel system.

Warranty and support

See warranty information for the terms that apply to the SPYPK. Contact Uniti Power to discuss a parallel design for your site.

SPYPK parallel card questions answered

How many Symphony UPS can be paralleled with the SPYPK?
The SPYPK enables parallel operation of up to three Symphony 6kVA or 10kVA UPS units.

Which Symphony models work with the SPYPK?
The SPYPK is for the Symphony 6kVA and 10kVA models, the SPY6KiRTB and SPY10KiRTB. The 1.5kVA and 3kVA Symphony models do not support parallel operation.

Can the SPYPK be used for redundancy as well as capacity?
Yes. A Symphony system using the SPYPK can be set up for capacity expansion or for N+1 redundancy. Confirm the topology for your installation with Uniti Power technical support.

Do I need professional installation for a parallel system?
Yes. A parallel Symphony system using the SPYPK needs correct system design, cabling and commissioning, and the 6kVA and 10kVA UPS are hardwired.

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

Parallel capability is taken from the Symphony range specifications. Accessory compatibility is shown in the Connectivity Accessories Datasheet (PDF).