TDK Lambda Americas Inc
TDK World Wide


Power Supply Products

DIN Rail Power Supplies Are Suitable for Use in Hazardous Locations

San Diego, CA – January 2016 –

TDK Corporation announces the introduction of TDK-Lambda’s DRF/HL DIN rail mount power supplies certified for use in potentially explosive atmospheres and marine applications.  The products have been tested to ISA 12.12.01, IEC/EN 60079-0:2011, IEC/EN 60079-15:2010 and Guidelines for the Performance of Type Approvals – Test Requirements for Electrical / Electronic Equipment and Systems (VI-7-2).  The models are marked with the following nomenclature accordingly: Class I Division 2, Group A, B, C and D, IECEx, ATEX and DNV-GL.

Carrying a 5-year warranty, the TDK-Lambda 24V output DRF/HL series is available in three power levels, 120W, 240W and 480W, and can deliver a peak power of 150% for 4 seconds. The overload characteristic is constant current style; ideal for driving motors and other non-linear loads.  The supplies operate from a universal input of 85~264Vac (300Vac for 5 seconds) and are compliant to EN61000-3-2.  Efficiency levels are as high as 94% and standby power consumption is between <0.5W and <0.75W depending on the model type.

Housed in a metal enclosure, the DRF models offer slim case designs, ranging from 36.5mm to 82mm in width, saving vital space on the DIN rail.  All models share a common 123.4mm height and 115.4mm depth.  In addition, they have been rigorously tested for shock and vibration while mounted onto the rail.

The DRF series can operate at full load over a wide temperature range of -25 to +60°C (derating linearly to 75% load at +70°C). Standard features include conformally coated printed circuit boards, remote on/off, parallel capability, remote voltage adjust and a DC good relay output.

Additional safety certifications include UL508 and IEC/UL/EN 60950-1 (2nd Ed.) and are CE marked in accordance with the LV Directive, EMC Directive and RoHS2 Directive.  The DIN rail power supplies meet EN55022 and CISPR22 Class B for conducted and radiated EMI.

More information can be obtained at the following TDK-Lambda Americas website,, or by calling 800-LAMBDA-4.  Product availability for the DRF/HL series can be found via the link to TDK-Lambda’s distributor network (see “Check Distributor Stock”) at


Major applications

Oil and gas, chemical and pharmaceutical, automotive manufacturing, process control, marine and ship building.


Main features and benefits

  • Certified for use in Hazardous Locations
  • Compact size utilizing less space on the DIN rail
  • High efficiency
  • Low standby power consumption

Major specifications


About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* which are marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2015, TDK posted total sales of USD 9.0 billion and employed about 88,000 people worldwide.

* The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

About TDK-Lambda Corporation

TDK-Lambda Corporation, a group company of TDK Corporation, is a leading global power supply company providing highly reliable power supplies for industrial equipment worldwide. TDK-Lambda Corporation meets the various needs of customers with our entire range of activities, from research and development through to manufacturing, sales, and service with bases in five key areas, covering Japan, Europe, America, China, and Asia.

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Editorial Contact:

Tom Tillman, Director of Marketing
TDK-Lambda Americas Inc.
401 Mile of Cars Way, Suite 325
National City, CA 91950
Ph: 619-575-4400