Tracopower tof open frame power supplies tracopower tof 10 24s the tracopower tof 10 24s 10w open frame power supply 24v 05a is the ideal power supply for a demanding application as it features compact dimensions and a low profile this well designed unit is easy to install and connect via a screw terminal while a chassis and cover kit are also available as an accessory compliance with international safety standards ceul and emc requirements qualify this product for worldwide use a ve