DPP 3-Phase Series DIN Rail Mount Power Supplies

TDK-Lambda has released a series of AC-DC DIN rail mount power supplies with outputs rated from 120 to 480-watts that operate off a 3-phase AC line input from 340 to 575 V_AC. These models are ideal for factory automation, industrial control systems and test and measurement equipment.

Each series is available with the most popular output voltages: 12 V_DC and 24 V_DC outputs are available in the DPP120 series (rated at 120 W) plus 24 V_DC and 48 V_DC outputs are available in the DPP240 series (rated at 240 W) and the DPP480 series (rated at 480 W). An important feature of these new units is their bi-phase operation; under a dropped phase condition they will continue to operate with the output power de-rated to 80%. All models incorporate power factor correction in accordance with EN61000-3-2.

Output voltages can be adjusted to allow for the voltage drop in cables and similar factors. Load regulation is ±1% when the supplies are used individually and ±5% when two supplies are connected in parallel for higher power applications.

For additional convenience in control and automation applications, the 24 V model includes a voltage monitoring (DC Good) relay. The relay contacts are rated at 0.3 A and they close when the output voltage is above 17.6 V to 19.4 V_DC; which can be useful in protecting devices such as sensors and solenoids that may be unpredictable at reduced voltages, i.e., below their nominal 24 V rating.

Further features of these DPP 3-phase series include over current protection, over voltage protection and over temperature protection with auto recovery. The operating temperature range of the power supplies is from -25°C to +71°C.

These new DPP 3-phase series power supplies from TDK-Lambda meet EN55022 Class B EMI standards (radiated and conducted), are CE marked, and are safety-approved to UL/EN60950-1 and UL508 specifications. All models are suitable for either TS35/7.5 or TS35/15 DIN rail mounting, and have a robust metal case with convenient screw terminal connections. All models carry a two-year warranty.