A SMPS (Switch Mode Power Supply) 15V 40A with Digital Display - a high power switch mode power supply housed in a lightweight and compact enclosure with digital LED displays for voltage and current readings.
Output is adjustable from 3V to 15V with the ability to fix the output at 13.8V via a slide switch on base of unit.
Incorporating the following features: 230V AC supply voltage, dual outputs, 3 to 15V DC 1st output voltage, 13.8V DC 2nd output voltage, 40A 1st output current, LED display, 200mV load regulation, 3.5kg weight, high efficiency, floating ground design, light weight, small size, overload temperature protection, constant current protection, over voltage protection at 16.5V, variable speed thermally controlled fan, high RFI stability, power factor correction.
The PSU is fully protected with overload, over temperature, over voltage (set at 16.5V) and short circuit protection as standard
A thermally controlled, variable speed fan ensures quiet and cool operation
Q. Can you tell me what the values are for over volt and amp draw please
A. Hi Glenn, thank you for your question. This unit has an over volt protection rated at 16.5V the manufacturer does not mention any over current protection for this unit, please see the data sheet for more information.
Q. I would like to know if this power supply could cope with swinging current demand. I want to use it on a 3D printer and the problem is the heated bed which draws around 10 amps. It switches on and off by thermostatic control. Does this power supply expect the current draw to be constant.
A. Hi Andrew. Thank you for your question. This switched mode bench supply should be able to cope with the intermittent current demands you speak of.
Q. hi
can two of these be used in series for 30 volt 40 amp? i have one of your 30v 30 amp version but would need 2 of these if i cannot use the smaller ones in series as i need to run two chargers using 20 amp each but need to run at 28v
thanks
A. Hi Kyle
Thank you for you enquiry - there is no reason why you can't do this for the supply side - on the charger side they would need to be connected in parallel
Reviews
Great for 3D printing
Reviewed by: Andrew - Thursday, May 29, 2014
I bought this to power a 3d printer. From the forums for 3d printers it appeared that the power requirements could be around 20 amps. The 40 amp version of the power supply was plenty and works well. I would recommend this PSU for 3d printing.
Fantastic unit and excellent build quality.
Reviewed by: remeeraz - Friday, February 17, 2012
This is an excellent PSU, it's very stable - the voltage doesn't drift, it performs within the specifications well and the build quality is very good and sturdy. Perfect for any low voltage high current application :
eg. CB Radios, Model Railways and Slot Cars, LiPo / LiFe Battery Chargers
It has a single 80mm cooling fan mounted on the rear panel of the unit which unfortunately doesn't appear to be load or heat controlled so runs continuously even off load but isn't noisy.
The unit has an average Efficiency Rating of over 80% and as this is probably at max load, I would assume it is much greater at lower demands.
I would highly recommend this unit for any workshop or hobbyist situation.
