Modulon Series – Three-Phase Modular UPS Systems, 20–600 kVA

The DPH Series UPS is modular and scalable by design. Each UPS cabinet can host multiple plug-in power modules (either 20 kW or 50 kW each, depending on model). To increase capacity, you simply insert additional power modules up to the frame’s limit – for example, up to 6 modules for a 120 kVA system or 12 modules for a 600 kVA system. For redundancy (N+1 or N+X), an extra module is installed above the required load capacity. Additionally, entire UPS cabinets can be connected in parallel (up to 4 or even 8 units in some cases) to reach multi-megawatt power levels or to provide system-level redundancy. This scalable architecture lets you start with the capacity you need and expand later without replacing the UPS.

The Modulon DPH series delivers very high energy efficiency for a three-phase online UPS. In normal double-conversion mode it operates at up to about 96–96.5% efficiency, meaning minimal energy loss as heat. It also features an Eco mode (or “green mode”) that can reach around 99% efficiency. In Eco mode, the UPS intelligently switches to a bypass supply when conditions are stable, powering the load directly from mains with the inverter ready on standby. If the power quality falls outside tolerance, the UPS immediately returns to double-conversion. This mode significantly reduces losses during off-peak or lighter load conditions, yielding substantial energy savings while still protecting the load.

Yes. The Modulon DPH series is designed as a fully rated UPS system, meaning kVA equals kW. It can deliver 100% of its capacity as real power to the load (power factor 1.0). For example, a 120 kVA DPH UPS can support the full 120 kW load without derating. This is ideal for modern servers and IT equipment which often have unity or near-unity power factor. Even the larger models (like 500 kVA) are essentially fully rated – a 500 kVA unit will supply up to 500 kW of critical load (the slight difference for that model is due to an adjustable module rating, but effectively it supports full kW output when configured accordingly). In summary, you don’t lose any capacity due to power factor with these UPS systems.

The “-FR” designated models (for example, DPH-80K-FR and DPH-200K-FR) refer to a specific frame design that can include an integrated battery within the UPS cabinet (FR stands for a particular frame, often a 42U rack format). The standard DPH 20–120 kVA systems are typically smaller cabinets intended to use external battery cabinets for energy storage. In contrast, the DPH 80 kVA FR unit is a full-height 42U rack that comes with internal battery trays to provide a built-in backup battery supply, making it a self-contained solution. The DPH 200K-FR is a similar full-size cabinet that can accommodate up to 10 power modules (200 kVA) but usually relies on external battery cabinets for longer autonomy (though it has the larger frame). Essentially, FR models address specific deployment needs: the 80K-FR offers an all-in-one UPS-with-battery in one rack for simpler installation in smaller sites, whereas the non-FR 120 kVA model might be chosen if you plan to use external battery banks or have height constraints.

High availability is achieved through multiple layers of redundancy and fault-tolerant design in the DPH series. Firstly, the UPS uses modular redundancy – you can add one or more extra power modules beyond the load requirement, so if one module fails, the spare module seamlessly takes over with no loss of power to the load. Secondly, critical components within the UPS (like control cards, inverters, and static bypass switches) are designed in a redundant configuration and are hot-swappable. The control architecture uses dual CAN-bus communication paths so that even a control board failure will not crash the system – the remaining control loop continues operation. The UPS also actively monitors the health of key components and can warn in advance if a module or part is degrading (allowing proactive replacement). Finally, by enabling parallel operation of multiple UPS units, the system can tolerate an entire UPS cabinet failure while the others carry the load (distributed redundancy at system level). All these features together mean the DPH series can achieve very high uptime for mission-critical applications.

The Modulon DPH UPS series is designed to be maintenance-friendly and to integrate with facility monitoring. For local monitoring and control, each system has a built-in 10-inch colour touchscreen panel that provides a detailed interface for status checks, alarm viewing, and configuration – this makes on-site operation intuitive. For maintenance, almost all active parts including power modules, control modules, and even the bypass module can be hot-swapped, so routine service or part replacement doesn’t require shutting down the load. The UPS supports remote monitoring as well: it comes with multiple communication ports (such as RS-232, dry contacts, Modbus, and Ethernet/SNMP options) to feed into building management systems or network monitoring software. Additionally, the system can log thousands of events internally, accessible via USB download, aiding in troubleshooting and analysis. Environment sensors (temperature, humidity, smoke detectors, etc.) and external battery monitoring units can also tie into the UPS control system, with all data viewable on the local screen or via remote interfaces. This comprehensive maintenance and monitoring capability helps operators keep the UPS in optimal condition with minimal effort.

The Modulon DPH series is primarily targeted at data centres and IT infrastructure that demand high uptime, scalability, and efficiency. This includes enterprise data centres, colocation facilities, cloud service providers, and large network hubs, where the ability to expand power protection quickly as the server load grows is a major advantage. Beyond data centres, it’s also suitable for other mission-critical environments such as telecommunications switching centres, hospital and healthcare facilities (protecting imaging equipment and critical care systems), banking and finance data rooms, and industrial process control centres that require reliable power. Essentially, any application that cannot afford power interruptions and may need to scale its power backup system over time can benefit from the DPH series. Its modular, hot-swappable nature and high efficiency make it a great fit for modern operations looking to optimise both reliability and operating cost.