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Eaton 9SX 15kVA and 20kVA UPS Australia | Online Double-Conversion | Indigi Power and Cooling

Eaton 9SX 15kVA and 20kVA UPS Australia | Online Double-Conversion | Indigi Power and Cooling

The Eaton 9SX AP UPS is an online double-conversion rack and tower system available in 15kVA and 20kVA capacities, with configurable single-phase or three-phase input. It is designed for data centres, enterprise server rooms, medical facilities and telecommunications infrastructure requiring zero transfer time power protection at 15 to 20kVA -- the capacity range where the standard Eaton 9SX (700VA to 3kVA) ends and the three-phase 9355 begins.

The 9SX15KPMAU and 9SX20KPMAU are UPS power modules in a 3U rack and tower form factor. They ship without internal batteries -- the 9SXEBM480RT6U external battery module provides runtime, and the MBP20K series maintenance bypass panels enable safe servicing without interrupting connected loads. A parallel bypass panel (MBP20KPARA) supports two units in N+1 redundancy configuration.

Indigi Power and Cooling supplies the full Eaton 9SX AP range across Australia with installation, commissioning and ongoing maintenance services available nationally. Contact us on 1800 046 344 or request a quote below.

Eaton 9SX AP Key Specifications

Specification 9SX15KPMAU (15kVA) 9SX20KPMAU (20kVA)
Power capacity 15kVA / 15kW 20kVA / 20kW
Topology Online double-conversion, zero transfer time Online double-conversion, zero transfer time
Input phase 1 or 3 phase configurable 1 or 3 phase configurable
Form factor Rack and tower, 3U Rack and tower, 3U
Dimensions (W x D x H) 438 x 589 x 129 mm 438 x 589 x 129 mm
Weight 27.5 kg (no battery) 27.5 kg (no battery)
Internal battery None -- EBM required (9SXEBM480RT6U) None -- EBM required (9SXEBM480RT6U)

Eaton 9SX AP Model Range and Part Numbers

Part Number Description Dimensions / Weight
UPS Power Modules
9SX15KPMAU Eaton 9SX 15kVA / 15kW Online Rack and Tower UPS Module, 1 or 3 phase configurable (no battery) 438 x 589 x 129 mm (3U), 27.5 kg
9SX20KPMAU Eaton 9SX 20kVA / 20kW Online Rack and Tower UPS Module, 1 or 3 phase configurable (no battery) 438 x 589 x 129 mm (3U), 27.5 kg
External Battery Module (EBM)
9SXEBM480RT6U Eaton 9SX EBM for 9SX 15kVA and 20kVA rack and tower (contains 2 x 240V 3U modules supplied as a set) 2 x [438 x 589 x 129 mm (3U)], 63 kg
Maintenance Bypass Panels and Rack Kit
MBP20K Eaton Maintenance Bypass Panel for 9SX 15 and 20kVA (hardwired connection only) 438 x 489 x 129 mm (3U), 25 kg
MBP20KPDU Eaton Maintenance Bypass Panel for 9SX 15 and 20kVA with 6 x C13 and 3 x C19 outlets plus hardwired blocks 438 x 489 x 129 mm (3U), 25 kg
MBP20KPARA Eaton Maintenance Bypass Panel for 2 x 9SX 15 or 20kVA in parallel (N+1 redundancy, hardwired) 438 x 489 x 129 mm (3U), 25 kg
RT3URK Eaton Rack Mounting Kit for 9SX 15 and 20kVA (415 to 763 mm depth) Contact for dimensions

Why the Eaton 9SX 15kVA and 20kVA

The Eaton 9SX AP models fill the critical capacity gap between the standard 9SX range (up to 3kVA) and the three-phase 9355 (from 10kVA with three-phase output). For Australian sites needing a 15kVA or 20kVA online double-conversion UPS with the flexibility of single-phase or three-phase input, the 9SX AP is often the most compact and cost-effective solution.

Eaton 9SX range positioning by capacity
Model Capacity Input Best For
9SX 700VA to 3kVA 700VA, 1kVA, 1.5kVA, 2kVA, 3kVA Single phase IT closets, small server rooms, workstations
9SX AP 15kVA and 20kVA 15kVA / 15kW, 20kVA / 20kW 1 or 3 phase configurable Data centres, server rooms, medical, telecoms
9355 Three Phase 10kVA to 80kVA Three phase in and out Large data centres, enterprise facilities

Applications for the Eaton 9SX 15kVA and 20kVA

  • Data centre server rooms: online double-conversion at 15 to 20kVA with zero transfer time for IT infrastructure. The server room UPS guide covers sizing and topology selection.
  • Telecommunications rooms: stable sine wave output at scale for telecoms cabinets and exchange infrastructure
  • Medical and healthcare: UPS protection for imaging systems, theatre equipment and clinical IT requiring zero transfer time. Configurable phase input suits hospital switchboard configurations.
  • Industrial and manufacturing: robust online topology for PLC and SCADA systems in environments with variable power quality
  • N+1 parallel deployments: the MBP20KPARA bypass panel enables two 9SX AP units in parallel redundancy, doubling capacity or providing N+1 without additional external switchgear

Maintenance bypass panel: the MBP20K series panels allow the 9SX 15kVA and 20kVA to be safely isolated for maintenance, battery replacement or repair without interrupting power to connected equipment. This is a mandatory requirement for data centre and critical infrastructure deployments where planned downtime is not acceptable. The MBP20KPDU adds C13 and C19 distribution outlets. The MBP20KPARA enables parallel operation of two units for N+1 redundancy.

Eaton 9SX AP FAQs

What is the Eaton 9SX AP UPS used for?

The Eaton 9SX AP (15kVA and 20kVA) is designed for data centres, enterprise server rooms, telecommunications infrastructure, medical facilities and industrial environments requiring online double-conversion power protection. The configurable single-phase or three-phase input suits a wide range of Australian site configurations.

What is the difference between the Eaton 9SX AP and the standard 9SX range?

The standard Eaton 9SX covers 700VA to 3kVA. The 9SX AP models cover 15kVA and 20kVA, are UPS power modules (no internal battery), and support configurable single-phase or three-phase input. They also support parallel operation for N+1 redundancy via the MBP20KPARA bypass panel.

Can the Eaton 9SX 15kVA and 20kVA be used with single-phase or three-phase supply?

Yes. Both the 9SX15KPMAU and 9SX20KPMAU are configurable for single-phase or three-phase input, making them suitable for sites with either supply type.

Does the Eaton 9SX 20kVA support parallel redundancy?

Yes. Using the MBP20KPARA maintenance bypass panel, two 9SX 15 or 20kVA units can be operated in parallel for N+1 redundancy. This allows either unit to be taken offline for maintenance without interrupting supply.

What EBM is compatible with the Eaton 9SX 15kVA and 20kVA?

The 9SXEBM480RT6U is the compatible external battery module. It contains two 240V 3U modules (supplied as a pair) to extend runtime beyond the base UPS power module capacity.

Is the Eaton 9SX AP available in Australia with installation?

Yes. Indigi Power and Cooling supplies the Eaton 9SX 15kVA and 20kVA across Australia with professional installation and commissioning. See our UPS installation page for details and pricing.

Related Products and Services

Specifying and Sizing the Eaton 9SX 15kVA and 20kVA

Correctly sizing a 15kVA or 20kVA UPS for a server room or data centre application requires a load assessment covering all connected IT equipment, networking, storage and the CRAC cooling system where applicable. The 9SX AP models are rated at unity power factor -- 15kVA equals 15kW and 20kVA equals 20kW -- which means the kW and kVA figures are identical, simplifying load calculations for modern server infrastructure.

As a general guide, a 15kVA Eaton 9SX is suited to server rooms with a connected IT load of approximately 10 to 12kW (allowing 20 to 25 percent growth headroom). A 20kVA unit suits environments with a connected load of 14 to 16kW. For higher loads, two 9SX20KPMAU units in parallel via the MBP20KPARA panel provide up to 40kW at N+1 redundancy without requiring a transition to a larger three-phase system.

Use our UPS runtime and battery sizing calculator to estimate runtime from the 9SXEBM480RT6U external battery module at your specific load. For a validated specification with full bill of materials and installation quote, contact our team on 1800 046 344.

Eaton 9SX AP Installation and Commissioning in Australia

The Eaton 9SX 15kVA and 20kVA are hardwired systems requiring a licensed electrical contractor for installation. The UPS power module, external battery module and maintenance bypass panel must all be interconnected by a qualified electrician following the Eaton installation documentation and AS/NZS 3000 wiring rules.

Commissioning of a 9SX AP installation includes input and output voltage verification, battery connection and initial charge confirmation, bypass transfer testing, alarm and network card configuration (SNMP, Modbus or HTTPS as required) and a written commissioning report confirming the system is ready for live operation.

Indigi Power and Cooling provides professional installation and commissioning of the Eaton 9SX 15kVA and 20kVA across Australia, including Brisbane, Sydney, Melbourne, Perth, Adelaide and Darwin. Our technicians hold the required electrical licences and follow Eaton manufacturer commissioning procedures for every installation.

See our UPS installation and commissioning page for typical timelines and pricing, or contact us for a fixed installation quote specific to your site.

Eaton 9SX AP Maintenance and Battery Replacement

The Eaton 9SX 15kVA and 20kVA are UPS power modules with no internal battery. The external battery module (9SXEBM480RT6U) contains sealed lead-acid VRLA batteries with a typical service life of 3 to 5 years in Australian ambient temperature conditions. Battery life is reduced significantly in high-ambient-temperature environments such as those found in Queensland, Western Australia and the Northern Territory -- regular battery testing and earlier replacement is recommended for these sites.

Preventative maintenance for the Eaton 9SX AP should be performed at minimum annually and quarterly for mission-critical environments. A standard service visit includes battery condition testing under load, input and output voltage and waveform verification, connection torque check, alarm and bypass system test, and a written service report.

Indigi Power and Cooling provides Eaton UPS maintenance contracts and emergency callout services across Australia. See our UPS maintenance plans page for annual contract pricing, or contact us on 1800 046 344 for an emergency service request. For replacement batteries and accessories, see our Eaton SLA UPS batteries collection.

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