TDK Lambda Americas Inc
TDK World Wide


November 21, 2006 Editor Contacts:
Stan Michelson, Focus Communications

Lambda Introduces 480W DIN Rail-Mount Power Supplies

SAN DIEGO, CA (November 21, 2006) - Lambda has extended its DPP family of DIN rail-mount power supplies with the addition of a 480-watt package. The new DPP480 series provides an especially economical solution for mid-power factory automation and process control applications.

The DPP480 series is available with a nominal output of 24 or 48 volts and can be adjusted – using a front panel potentiometer – to compensate for cable drops. Load regulation is maintained within a 0% to +1% window when units are used individually or ±5% when connected in parallel. Up to three units can be paralleled when the system power exceeds 480 watts.

Pre-selecting the AC input voltage range is not required because both models operate continuously over an input of 90 to 264 volts AC or 120 to 370 volts DC. Active power factor correction is incorporated, ensuring full compliance to EN61000-3-2. The series also meets EN55022 level A EMI standards (radiated and conducted), is approved to UL60950 and EN60950 specifications, and is listed to UL508.

The power supplies feature a low ripple and noise of less than 100 millivolts and are protected against over-current and over-voltage conditions. The 24-volt model includes LED indicators and incorporates a voltage monitoring relay that is activated if the output drops below a preset level.

Both models are convection cooled and can operate at full power over a wide temperature range of -25°C to +71°C, derating linearly at 2.5% of a degree above 56°C to 71°C.

The units are enclosed in a rugged metal case measuring 6.89 x 4.92 x 4.9 inches and will mount on either a TS35/7.5 or TS35/15 DIN rail.

The new DPP480 series power supplies are available now, with prices starting at $145 each in 100-unit quantities. More information can be found on Lambda’s Web site,

For more than 50 years, Lambda Americas has been a leading provider of power supply solutions. The company's broad range of products provides power for industrial, telecommunications, data communications, medical, and test-and-measurement applications worldwide. Lambda is a unit of TDK Corporation (NYSE:TDK), a leading global electronics company, and is headquartered in Tokyo. More information is available at 800-LAMBDA4 (toll free) or 619-575-4400; fax is 619-429-1011.

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