48 VDC 3.3A 150W Regulated Switching Power Supply

Brand:| Model: PS-SP11117
This 48 volt DC, 3.3 amp regulated power supply is capable of up to 150 watts of output. Switchable 90-264 volts AC input. UL recognized design.
  • Adjustable 45.6 to 52.8 VDC regulated output with 3.3A current capacity
  • Overload, over voltage, and over temperature protection built-in
  • Great for electronics projects, especially amplifiers
  • For use with electronics that demand up to 150 watts of power
Part # 
Weight: 1.61 lbs.  
List Price$51.99
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Buy 4-up$37.44
Part # 320-3142
Qty:  EA
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Product Details

48 VDC 3.3A 150W Regulated Switching Power Supply

This power supply is ideally suited for use with amplifier projects. With a regulated output of 48 volts DC, and current capacity of 3.3 amps, this power supply is the perfect partner for amplifiers with of up to 150 watts of output on tap.

Voltage input can be switched for use with 110 or 240 VAC mains power. Overload, over voltage, and over temperature protection is built-in, shutting down the power supply to prevent damage and then restoring power upon recovery. Power cable included. UL recognized design. Output voltage is adjustable from 45.6 to 52.8 VDC.

Note: Minimum recommend power wire gauge is 16 AWG.

Specifications: • Input power: Switchable between 90-132 VAC and 180-264 VAC, 47-63 Hz • Output power: 48 VDC, 3.3A • Dimensions: 7.83" L x 3.86" W x 1.5" H.

48 VDC 3.3A 150W Regulated Switching Power Supply
  • BrandParts Express
  • ModelPS-SP11117
  • Part Number320-3142
  • UPC848864002804
  • Product CategoryPower Supplies
  • Unit of MeasureEA
  • Weight1.61 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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48 VDC 3.3A 150W Regulated Switching Power Supply

Product Q&A

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48 VDC 3.3A 150W Regulated Switching Power Supply

so basically, just wire this up, and plug it into the wall and plug in the dc adaptor into what I need powered(amplifier)? this is about the same price as what a power-brick would be for the same application, but I would like to keep the brick hidden...

Asked by: bcboyz86
Yes. You will want to double check the output voltage with a volt meter, but it should be very close to 12 volts.
Answered by: MattP
Date published: 2014-11-07

Model: PS-SP11117- Can I series two of these so I get a split rail power supply for an amplifier; i.e., get plus and minus 48 v w gnd for amp?

Asked by: donovanpl123
Indeed, this is what is recommended for the International Rectifier based class D board, which requires a split supply.This will also work nicely with all the chip amplifier designs, nearly all of which require a split supply. However, I must remind you (and other readers) that dual 48VDC is some SERIOUS juice, capable of causing severe or fatal injury. In other words, if you are getting into the high output amplifier business, you need to be CAREFUL in ways you don't quite as much (though you can still get a nasty jolt from 30VDC) with the lower powered stuff.
Answered by: Doc Jones
Date published: 2013-03-26

Is it wise to use a switcher power supply for a analog amplifier?

Is it possible to use two Model: PS-SP11117 arranged in series for a amplifier with a split power ssupply for an amplifier? So, + - 48 volts.
Asked by: donovanpl123
Yes, indeed, it is possible to wire these in series. However, make sure that the two supplies' chassis are separated or insulated from each other, in case the supply is wired with ground to chassis (most of these are not for just this reason, but why take the chance of seeing an unscheduled fireworks display in your listening room). These are called 'industrial' for a reason--they are designed to drive power loads to full spec without self destructing. In fact, shorting one out would probably not cause fireworks, because these have robust overload protection.
Answered by: Doc Jones
Date published: 2013-03-26
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