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100W Slim Bench Power Supply

Code: N93CX

100W Slim Bench Power Supply is rated 4.6 out of 5 by 18.
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  • Ideal power supply for use in labs, schools or workshops
  • High quality selectable output, 1 to 20V and 0 to 5A
  • Large clear illuminated 3-digit LCD screen shows voltage and current
  • Slim tower housing - ideal for workbenches where space is tight
  • Output on/off button for safety
  • Short circuit, overload and over temperature protection

Product details

100W Slim Bench Power Supply

• Ideal power supply for use in labs, schools or workshops
• High quality selectable output, 1 to 20V and 0 to 5A
• Large clear illuminated 3-digit LCD screen shows voltage and current• Slim tower housing - ideal for workbenches where space is tight
• Output on/off button for safety
• Short circuit, overload and over temperature protection

Operating Specifications
Output Voltage 20 VV
Output Current 5000mA
Efficiency 84%
Load Regulation 70mV
Dimensions & Weight
Width 70mm
Depth 250mm
Height 150mm
Weight 2000g
Rated 5 out of 5 by from Nice price (on promotion at ???64.99) and by ordering another product, took the order up to over the voucher threshold, so a nice ???7.00 voucher discount off the total price. Small, compact, works well. Glad to see mains lead and output leads are included. As another reviewer has said, it does present a load of 600 Ohms or so when switched off, so be careful when charging batteries as you don't want to discharge them inadvertantly. A solution would be to add an external (or internal, if I can get the case off) Power MOSFET in the supply, connected as a Diode. STP36-NF06L does the job and drops just 2.5mV, a much better solution than a reasonable Shottky Diode (like 1N581) at 0.2V! Niggles, that's all. Voltage adjustment a bit slow and fiddley as the display takes a few seconds to settle down.
Date published: 2014-11-18
Rated 5 out of 5 by from These units certainly look the part and take up a small bench surface footprint. Two fit side by side very well. It would be better if they course and fine voltage and current controls so they could be set more easily to within one tenth of a volt or a fraction of an amp. The two units I bought are only two serial numbers apart but the LEDs that illuminate the screen have noticably different brightness which spoils their look when both are on side by side. Each comes with 1m long black and red connecting leads with insulated crock clips on one end and banana plugs on the other. They also have a 2m mains lead. The mains ON/OFF switch is on the back panel and a steel tab with a 6mm hole is provided so they can be secured to the bench in locations where they may be stolen. I got mine in the January Sale 2011 which was a real bonus.
Date published: 2014-11-18
Rated 4 out of 5 by from This is a great little power supply with wide ranges and clear indication. The display is backlit and enables the user to set the values without the unit outputting. However, it cannot supply below 1 volt. It has an easily accessible power switch on the back and includes a carry handle. All in all, a very accurate and quality product, but could be designed a bit better.
Date published: 2014-11-18
Rated 5 out of 5 by from I use the power supply for various home projects, it works very well, no problems so far. The current limiter is a very usefull feature it saves things being "cooked" if you get your wiring wrong. Also great for charging nicads or nimh batterys.
Date published: 2014-11-18
Rated 3 out of 5 by from I use the unit for examining behaviour of circuits under varying supply voltages : so I want to set an accurate voltage. This unit is rather coarse for doing that i.e. setting 7.5v as opposed to 7.3 or 7.6. The same comment holds for current setting. I think it represents fair value when on offe. In all other respects the kit is good.
Date published: 2014-11-18
Rated 5 out of 5 by from I use this equipment for running 'O' gauge model railways - some of them 'vintage' Hornby which require 20v AC. The unit copes well and has never let me down - others with similar interests use them very successfully. The unit lets us know if someone is running a 'rogue' item drawing more current than it should! Good value for money.
Date published: 2014-11-18
Rated 5 out of 5 by from Excellent piece of kit - I use it as a power supply for 'O' gauge vintage electric trains!
Date published: 2014-11-18
Rated 5 out of 5 by from This is absolutely top notch; a beautifully compact, and functional, bench power supply.
Date published: 2014-11-18
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I'm looking for a split rail power supply for some op amp projects. Do I get half the displayed voltage, symmetrically, either side of ground?  Is a 'ground' lead supplied?

Asked by: Mark999
Unfortunately we are unable to guarantee full compatibility for this item in your intended use, the user guide for the device does not suggest this as an operational mode of the unit. User manual here ............ https://maplindownloads.s3-eu-west-1.amazonaws.com/n93cx-3658.pdf
Answered by: Les
Date published: 2016-12-05

Is this a switched mode supply or a pure analogue?

Asked by: psu1
This is a switched mode power supply.
Answered by: Gareth
Date published: 2016-10-27

My model, serial number G350701066, a few years old now won't go above 12.4 volts. A load (a 12v, 5w bulb) works with both variable V (up to 12.4v) and I. Any suggestions?  If there's a circuit diagram, that would probably help me. Many thanks

Asked by: teribus
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email technical@maplin.co.uk
Answered by: Billy
Date published: 2016-10-05

Can I float the output to -500V? I have gone to -150V with no problem.

Asked by: mrben
we cannot advise on anything beyond the stated maximum output
Answered by: Dale
Date published: 2016-09-08

Is this PSU suitible for electro-chemistry?

Asked by: Peta
Unfortunately we are unable to guarantee full compatibility for this item in your intended application.
Answered by: Dominic
Date published: 2016-06-06

Can i charge a 18 v 4ah batt with this?

Asked by: test
This is not a battery charger so I would not advise this.
Answered by: Dominic
Date published: 2016-04-11

Is the output do voltage

Asked by: Neil
This information is presented in the user guide/datasheet for the device, which can be found on the downloads tab of the product listing. However if you are using a mobile phone or tablet to view our website it may not be visible. To this end I have copied in a link to the electronic version of the instructions as well as a brief summary of the requested information below for your convenience. https://maplindownloads.s3-eu-west-1.amazonaws.com/n93cx-3658.pdf _________________________________________________ Output Voltage Adjustable Range 1.0 - 20Vdc Output Current Adjustable Range 0 - 5A
Answered by: Les
Date published: 2016-02-15

Is it possible to obtain new case parts for this power supply?

Asked by: kay110
Unfortunately not no spare cases are available.
Answered by: Billy
Date published: 2016-02-09
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Bulk Prices

Item code Item name Quantity Price
N93CX 100W Slim Bench Power Supply (1+) £109.99

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