Solutions for your safety

Switched Mode Power Supplies


Primary switched mode power supplies are used in all kinds of automation solutions in machine and plant construction, in power plant technology and in the chemical, pharmaceutical and foodstuffs industry. The compact and powerful switched mode power supplies type SMP for DIN rail mounting are an ideal completion of the E-T-A product range for the DC 24 V control voltage level.


The 1-phase and 3-phase power supplies type SMP perfectly match the electronic circuit breakers and protectors type ESS20, ESX10, ESX10-T and REF16-S with integral active current limitation. The current ratings of the power supplies, 5A, 10A, 20A and 40A, can be made available at an operating voltage of DC 24 V. This corresponds to the power classes 120W, 240W, 480W and 960W. They are suitable for an ambient temperature of up to 70°C at an efficiency of up to 93%.