INTRINSICALLY SAFE TYPE POWER SUPPLY ZI*/*ZET it is intended for supplying intrinsically safe circuits with direct current of rated voltage Un = 12V, 15V and 24V. The power supply is powered by 24VDC or 24VAC. The offer includes cased network transformers through which the power supply can be powered with a rated voltage of 42VAC, 100VAC, 110VAC, 127VAC, 133VAC, 220VAC, 230VAC.