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PS150 or PS250 Power Supplies: How Much Power Do These Power Supplies Draw?

The PS150 uses our standard 120/277VAC transformer which is rated to supply 15V at 140mA or 2.1 Watts.  Due to transformer loss the primary side pulls about 3.6 Watts.

 

The PS250 uses the Bias BPW 4-24-00 and puts out 24V at 166mA or 4 Watts.  The power supply is 70% efficient, therefore the line side power consumption is about 5.2 Watts.

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