  We report on the first observation of the Seyfert 1 galaxy NGC4593 in the
0.1-200 keV band, performed with the BeppoSAX observatory. Its spectral
components are for the first time simultaneously measured: a power-law with
photon spectral index ~1.9; the Compton-reflection of the primary power-law; a
moderately broad (>60 eV) K-alpha fluorescent line from neutral iron; and an
absorption edge, whose threshold energy is consistent with K-shell
photoionization from OVII. The amount of reflection and the iron line
properties are consistent with both being produced in a plane-parallel, X-ray
illuminated relativistic accretion disc surrounding the nuclear black hole,
seen at an inclination of 30 degrees. Any cutoff of the intrinsic continuum is
constrained to lay above 150 keV. The claim for a strongly variable soft excess
is dismissed by our data and by a reanalysis of archival ASCA and ROSAT data.
