Emerson Network Power LCM300 and LCM1500 AC-DC power supplies

The LCM series of AC-DC power supplies now includes the LCM300 and LCM1500, rated for 310 and 1500 W loads. Alongside the existing 600 W LCM600 unit, the series can provide for almost any AC-DC embedded power requirement.

Featuring robust screw terminals, the units are suitable for use in industrial and medical applications. They are backed by a comprehensive set of industrial and medical safety approvals and certificates.

Variable speed ‘Smart Speed’ fans draw on software controls to match fan speed to the unit’s cooling requirement and load current. Slowing the fan not only saves power but also reduces wear, thus extending its life. The MTBF of the LCM300 and LCM1500 units is greater than 500,000 h.

A digital control loop optimises efficiency across a wide load range. The efficiency of both the LCM300 and LCM1500 is greater than 91% at full load (230 VAC nominal input) and is at least 80% at all loads higher than 25%. Power factor correction is implemented internally, offering a typical power factor of 0.99 (LCM1500) or 0.98 (LCM300). Both units accept operating inputs between 90 and 264 VAC. Maximum input current for the LCM300 is 5 A and 18 A for the LCM1500. The compact LCM300 has a power density of 7.1 W/in³, and the LCM1500, 12 W/in³.

Both the series units will be available in versions offering 12, 15, 24, 36 and 48 V outputs; the LCM1500 additionally offers a 28 V unit. All output voltages can be trimmed to ±20% (LCM300) or ±10% (LCM1500) of their nominal value, which means that almost any output voltage between 10 and 53 V can be provided by LCM series parts.