You are currently viewing 48VOutput 4080W 3-PhaseIndustrial Power Supply Operates From 400/440/480Vac Delta and Wye Inputs

48VOutput 4080W 3-PhaseIndustrial Power Supply Operates From 400/440/480Vac Delta and Wye Inputs

November 2020

TDK Corporation (TSE 6762) announcesthe addition ofthe TDK-Lambda brand TPS4000-48 power supply, further extending the existing 3kW to 4kW rated TPS series.Delivering up to 4080W output power (48V at 83.3A) in a 2U high package, the TPS4000 series operates from a wide range Delta or Wye 350 – 528Vac three phase input.  This industrial power supply is ideal for use in many applications including test and measurement equipment, semiconductor fabrication, additive manufacturing, printers, lasers and RF power amplifiers.  The high voltage, three-phase input avoids the requirement for costly step down transformers and assists phase load current balancing.

The TPS4000 series is fully featured with isolated AC Fail, DC Good and dropped phase signals, remote on/off, remote sense and a 12V 0.3A standby supply.  A PMBus™ communications interface allows remote monitoring of the output voltage, output current, internal temperature, status signals and fan speed.  In addition, the output voltage, over current limit and the remote on/off can be programmed by the PMBus™.  The output voltage can also be adjusted from 38.4to 58V and the current limit point by 70-105% using front panel potentiometers or an analog 0-5Vdc voltage.  Up to eight units can be connected in parallel for higher power and internal ORing FETs allow redundant operation. 

The 92% efficient unit can operate at full load in ambient temperatures of up to 50oC, and deliver up to 55% load at 70oC.  Cooling is provided by an internal temperature controlled fan to reduce acoustical noise. The case measures 107 x 84.4 x 335mm, making it suitable for 2U high racking systems. The weight of the product is just 4kg.

The power supply has 3kVac input to output, 2kVac input to ground and 500Vdc output to ground isolation.  All TPS models are certified to IEC/EN/UL/CSA 62368-1and carrythe CE mark for the Low Voltage, EMC and RoHS Directives.  The TPS4000 also complies with EN55032-A (conducted and radiated emissions), SEMI F47-0706 (line dips), IEC 61000-3-2 (harmonics), IEC 61000-4 (immunity),and is designed to meet the MIL-STD-461F/G CS101, CS114 (Army Ground), CS115, CS116 immunity standard.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4.  Product availability for the TPS4000-48 power supply can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Inventory”) at

Main features and benefits

  • Suitable for 400/440/480Vac 3-phase Delta and Wye inputs
  • Compact 2U high package size
  • Fully featured
  • 92% efficient
  • PMBus™ communications interface for remote programming and monitoring


Key data          





Input voltage range


350 – 528VAC, Delta or Wye 3 phase

Output voltage


48V, adjustable from 38.4 –58V

Maximum output power





400/480VAC input





PMBus™ interface

Safety Certifications

IEC / UL / CSA / EN 60950-1 (62368-1 pending)

Size (W x H x L)


107 x 84.4 x 335mm (excluding output busbars)


Three years


About TDK Corporation

TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on a foundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at the forefront of technologicalevolution and deliberately “Attracting Tomorrow.” It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products.

TDK’s comprehensive, innovation-driven portfolio features passive components such asceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors.In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in automotive,industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2020, TDK posted totalsales of USD 12.5 billion and employed about 107,000 people worldwide.

About TDK-Lambda Corporation

TDK-Lambda Corporation is a trusted, innovative leader and global supplier of highly reliable power conversion products for industrial and medical equipment worldwide.

TDK-Lambda Corporation is aligned for fast responses to any customer need with R&D, manufacturing, sales and service locations in five key geographic regions, namely Japan, EMEA, Americas, China and ASEAN.

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Contacts for regional media







Tom Tillman

TDK-Lambda Americas

(619) 575 4400


    TDK-Lambda Americas Inc. is a world class leader in the design, manufacture, and marketing of power supplies to the Industrial, COTS, Telecom, Datacom, Medical and Test and Measurement sectors. Founded in 1948 TDK-Lambda Americas has developed a worldwide reputation and heritage for high quality, robust power supplies. SWS Series Single Output General Purpose Power SuppliesTDK-Lambda Americas Inc. is a unit of TDK Corporation a leading global electronics company. Today the TDK-Lambda group of power supply companies has an international presence with manufacturing, support, and design facilities in China, England, Israel, Japan, Malaysia, Singapore, and the United States. TDK-Lambda Americas invests heavily in R&D and manufacturing. This enables a continued roll out of new and leading edge products built in factories meeting high environmental standards. To supply a diverse customer base in diverse markets, TDK-Lambda Americas offers a broad range of power supplies, including standard, modified-standard and custom. High reliability products are available from 1W to 22,500W, AC-DC and DC-DC.