Electrical characteristics to keep in mind include the current rating that the snap switch is capable of making and/or breaking a connection and which forms the basis for the life tests. The thermal rating is the current the snap switch will withstand when not being operated, for a temperature rise of not more than 60°C. The breaking capacity for DC breaking, is very much dependent on the voltage, the contact gap and the nature of the load being switched. There is a risk of prolonged or indeed permanent arcing if limits are exceeded. DC breaking capacity can be increased very significantly by using different means, if necessary in combination with: Arc reduction device, Microswitch with magnetic blow-out, Use of two microswitches (or more) connected in series and operated simultaneously.