LocksOnline EM01 Standard Slimline Maglock

Offering a solid 275kg (600lbs) of holding force, these slimline electromagnetic locks are small and compact, offering the functionality of a very low-profile design, whilst still offering a decent level of strength for basic applications.  

This type of electromagnetic door lock is ideal for tight spaces where a full-sized magnet would not be practical, measuring just 250mm x 48mm x 25mm, which compared to a full size maglock, can be the difference between being able to fit a maglock or not.  So these slimline mags are really a fantastic solution, as they can be used much more universally than a full sized version. 

These will operate on both 12v DC and 24v DC, with a basic current consumption of 500mA on 12vDC, or 350mA on 24vDC.   This relatively low power consumption will typically mean that a basic 1amp power supply will be all you need to power the magnet and a keypad or prox reader etc.  Of course this would depend on the components you plan to use but this is a simple case of adding up all the maximum current draw specifications on each of your proposed components. 

If you're looking to replace an existing maglock then the full specifications on sizing etc can be found in the "Specifications" tab above.  These should help you decipher if this is going to allow for a clean retrofit, or indeed if you'll need to make any small alterations.