Modular UPS – DPH Series 25-75/150/200 kW


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The modular UPS ideal for medium-sized datacenters

Introducing the next generation of modular uninterruptible power supply (UPS) systems designed for ultimate availability, excellent performance, high efficiency, and ideally suited for medium-sized datacenters.

The Modulon DPH Series UPS is a modular UPS used extensively for critical operations, since it provides 25% more power output compared to power factor 0.8 UPS systems. Designed for the most stringent datacenter requirements, the Modulon DPH Series offers the highest possible availability. With its modular structure, the true on-line, double conversion, three-phase Modulon DPH Series UPS system offers a scalable architecture for optimal power designs. It provides 25kW to 200kW of uninterruptible power with additional 800kW capacity in parallel.

The Modulon DPH Series’ scalable architecture is available in a 19″ enclosure, and supports vertical and horizontal expansion for versatile installation arrangements. Integration of your power distribution can take shape within the same rack or in parallel rack enclosures. Optimal placement is ultimately decided by the needs of the datacenter, not the limitations of the UPS system.

Built-in redundancy guarantees a continued power supply for mission critical applications, and the fully fault-tolerant design of the Modulon DPH Series offers self-redundancy for the control mechanism, cooling and power modules. Mean time to repair (MTTR) is close to zero, due to hot-swappable functionality for all critical components. In the event of failure by the main module, full control logic enables the system to self-synchronize and switch to the backup, for a seamless transition with no disruption to operations.

Delta’s Modulon DPH Series UPS provides one of the highest efficiency ratings in its class. With fully rated power, this modular 3 phase UPS delivers maximum power capacity, better power protection and quality to the load. Scalability, availability, and efficiency distinguish the Modulon DPH Series UPS as the best solution for power protection and distribution in your datacenters.

The Modulon DPH is designed in modern IT aesthetics aligned with Delta InfraSuite datacenter solutions.
▲ The Modulon DPH is designed in modern IT aesthetics
aligned with Delta InfraSuite datacenter solutions.


Applications: Datacenter Telecom Industrial Network Security Lab Medical Metro Banking

UPS DPH Series - features

Delta- DPH Series Applications


Ultimate Availability
Advanced fault-tolerant design achieved by self redundancy to guarantee operation continuity
Self-synchronization of power and control modules for continuous on-line operation even in the event of control module failure to avoid downtime caused by single point failure
Hot-swappable key modules and components to ensure Mean Time To Repair (MTTR) close to zero without downtime risk
Wide input voltage range of -45% to +25% and narrow output voltage regulation window to cope with harsh utility conditions and seamlessly provide stable power supply to the load
High overload protection to support 125% overload for 10 minutes and 150% for 1 minute
High Scalability
Vertical expansion from 25kW to 75/150/200kW supporting N+X redundancy in a single rack enclosure to save footprint
Parallel expansion up to four units without requiring additional hardware
Variable configurations possible providing the scalable flexibility up to Tier 4 standard
Excellent Power Performance and Efficiency
Fully rated power (kVA=kW) to maximize power availability
High AC-AC operating efficiency of 95% at 30% light load and 96% from 50% load resulting in marked energy cost savings
Low harmonic pollution (iTHD<3%) to reduce upstream investment costs and meet demanding power requirements
Easy Maintenance
Built-in manual bypass features to eliminate maintenance-related downtime
Proactive detection of fan failure and switch fault for early diagnosis on UPS malfunction
Plug and play to simplify the maintenance process

Ultimate Availability

Ultimate Availability for Mission Critical Operations

The Modulon DPH supports ultimate availability to ensure the continuity of mission critical operations.

The datacenter constitutes the critical load in the daily operations of the organization. Cost of downtime due to critical load failure is extreme and runs between USD4,000 to USD6,000 per minute or even more. To achieve the highest availability possible for the datacenter, it is vital for the most reliable products or solutions supported by the shortest or even zero Mean Time To Repair (MTTR).

The fully fault-tolerant design provides self redundancy to the control mechanism, cooling and power modules. Full control logic allows the system to self-synchronize in the event of main module failure and automatically switch to the backup for assured continuous operation.

Furthering the advantages, the hot-swappable functionality of critical components and modules improve the serviceability of the UPS system thereby reducing MTTR close to zero to assure maximum uptime and ultimate availability in the datacenters.

As illustrated, the Modulon DPH can run under inverter mode and bypass mode to sustain uninterruptible power supply to critical load:

In the event of STS module removal, the Modulon DPH still functions under inverter mode (normal mode without bypass utility backup). During failure in normal mode, such as over temperature, overload, short circuit, abnormal output voltage, or low battery, the Modulon DPH smoothly transfers over to bypass mode.

In addition, the Modulon DPH has a wide input voltage range of -45% to +25% and narrow output voltage regulation window to cope with harsh utility conditions, seamlessly providing stable power supply to the load. In the event of overload, the Modulon DPH supports 125% overload protection for up to ten minutes and one minute at 150%.

The Modulon DPH assures exceptional reliability and maximizes uptime to deliver six-nines availability contributing to the best-in-class practice to reduce Total Cost of Ownership (TCO).

High Scalability

Modularity Designed for Scalability

Scalable architecture allows you to optimize cost expenditure to meet your power demands and deliver uninterrupted services in line with the business growth without over-sizing the power capacity.

The plug and play design of power module supports vertical and horizontal expansion of power capacity at the right time with the right investment. In the situation of a single rack enclosure, the system can vertically scale from 25kW to 75/150/200kW and achieve N+1 or N+X redundancy in the same rack. As business demands grow, the flexibility of the Modulon DPH allows for parallel expansion of up to four units without requiring additional hardware.

The Modulon DPH offers the advantages you need without the high initial investment costs or sacrificing power capacity so as not to create investment excess due to capital waste.

High Efficiency

Excellent Power Efficiency and Performance

Excellent power performance and efficiency directly translate into significant reduction of operational costs.

Two key trends have developed in the world of datacenter operations – demand for power and the cost of that power. Today’s management is facing growing pressure to optimize performance for sustainability and growth.

Delta’s UPS solutions deliver one of the highest power performance and efficiency ratings available while reducing cost. The Modulon DPH delivers fully rated power (power factor=1, kVA=kW) providing the maximum power capacity to the load. Compared to UPS systems with output of PF=0.8 and PF=0.9, the DPH supplies 25% and 11% more power, respectively. Other than that, the fully rated power factor is supported by a “stronger” inverter design providing better power protection and quality to loads.

The Modulon DPH demonstrates excellent power performance with low total input harmonic distortion (iTHD<3%). Its reduced load pollution increases power quality, optimizes generator sizing to increase your investment savings, reduces installation costs, and extends the life of valuable equipment.

The Modulon DPH features excellent AC-AC efficiency up to 96% at half load and places itself among the highest in its class. In addition to energy saving, higher efficiency levels also mean less heat dissipation, giving way to lower cooling costs.

Excellent power performance and efficiency lower operation costs significantly. The Modulon DPH combines these benefits to provide high performance, efficient power protection to maximize operational savings for any datacenter.


Easy Maintenance

Easy Maintenance

Hot plug and hot swap simplify the maintenance process.

The Modulon DPH hot plug and hot swap architecture makes best use of a modularity design for 50% faster time of repair compared to traditional UPS systems. Plug and play modularity also eliminates the risk of second fault occurrence caused by complex failure checking and removing processes. The reliability of maintenance and service is guaranteed, further assuring the system availability.


Management System

Remote control and monitor datacenter at the tip of your fingers

User-friendly Control InterfaceDesigned for management ease, the Modulon DPH is fully equipped with user-friendly monitoring and controls in various languages. A big graphic LCD screen provides the needed control for all communication and command options at the tip of your fingers to monitor and control functions on a single page view. Direct event log viewing helps quickly diagnose events without additional hardware requirements. Up to 3,000 event logs can be recorded.

Integrated Monitoring and ManagementDelta UPSentry 2012 communicates with UPS through physical interface RS232 and USB for UPS manageability. Also works with Shutdown Agent 2012 to protect a group of PCs, workstations, or servers. Delta New Shutdown Agent cooperates with SNMP card or UPSentry 2012 to shut down multi-servers in various operating system and virtual machine gracefully to prevent possible data corruption. Furthermore, Modulon DPH can be monitored and controlled together with other datacenter equipment by Delta InfraSuite Manager (EMS 3000) as a total datacenter control and monitoring solution.

Intelligent Battery Management SystemDelta intelligent battery management system can sustain battery lifespan and the
capacity of battery backed up through the functions of:

  • Battery temperature monitoring & compensation
  • Battery remaining capacity displayed in percentage
  • Overcharge/discharge protection
  • Boost/float stage charge
  • Auto/manual battery test
  • Adjustable charging voltage from 254V to 291V adapts to different types of batteries
  • Up to 40A charging current even at full load conditions
  • 38~42 battery units in one battery cabinet optimizes investment

Technical Specifications

DPH 75kW System
DPH 150kW System
DPH 200kW System
Power Rating
DPH 75kW System
25, 50, 75 kVA
DPH 150kW System
25, 50, 75, 100, 125, 150 kVA
DPH 200kW System
25, 50, 75, 100, 125, 150, 175, 200 kVA
DPH 75kW System
75 kW
DPH 150kW System
150 kW
DPH 200kW System
200 kW
Nominal Voltage
380/220V, 400/230V, 415/240V (3 phase, 4-wire +G)
Voltage Range
176~276 / 305~477 Vac *
Current Harmonic Distortion
< 3% **
Power Factor
> 0.99
50/60 Hz ***
380/220V, 400/230V, 415/240V (3 phase, 4-wire +G)
Output Power Factor
1 (kVA=kW)
Voltage Harmonic Distortion
≦ 2% (linear load)
Voltage Regulation
± 1% (static)
50 or 60 Hz
Frequency Regulation
± 0.05 Hz
Overload Capacity
≦ 125%: 10 minutes
≦ 150%: 1 minute
System communication port x 1, LCM port x 1, Parallel port x 2, Smart slot x 2, Output dry contact x 6, Input dry contact x 2, Battery dry contact x 2, REPO
SNMP IPv6 card, ModBus card, Relay I/O card,
Battery cabinet temperature sensor cable, Battery cabinet status detection kit
Safety & EMC
BSMI, CE, EN62040-1
Other Features
Parallel Redundancy and Expansion
Module and system redundancy
Maximum 4 units
Emergency Power Off
Local and remote
Battery start
Event Log
3000 records
96% (Tested by TÜV)
ECO Mode
Operating Temperature
0 ~ 40 ˚C
Relative Humidity
0~95% (non-condensing)
Audible Noise (at one meter)
< 62 dBA
Dimensions (WxDxH)
600 x 1090 x 2000 mm
UPS System
75kW System: 310 kg
150kW System: 320 kg
200kW System: 350 kg
Power Module
75kW System: 32 kg
150kW System: 32 kg
200kW System: 32 kg
Rack-mount PDC
75kW System: 32 kg
150kW System: 32 kg
200kW System: N/A
Battery Module
75kW System: 29.5 kg
150kW System: N/A
200kW System: N/A
System Frame
25kW Power Module
75kW System: 3
150kW System: 6
200kW System: 8
Maximum Capacity
Rack-mount PDC
75kW System: 1
150kW System: 2
200kW System: N/A
Breaker Module (for Rack-mount PDC)
75kW System: 6
150kW System: 12
200kW System: N/A
Battery Module
75kW System: 4
150kW System: N/A
200kW System: N/A
* Lower range 140/242~176/305 Vac is acceptable under 60~100% loading condition.
** When input vTHD is less than 1%.
*** Input frequency range can be adjusted up to 40Hz to 70Hz. Delta provides configuration service.All specifications are subject to change without prior notice.