Broad-band (rest frame 0.3–60 keV) X-ray spectra of all the observations of IRAS 05054+1718. The EF_E spectra are obtained unfolding the data against a simple power-law model with Γ = 2. The 2012 NuSTAR observation is shown in red, the 2014 Swift is in black, while the spectra obtained with the coordinated XMM-Newton and NuSTAR observations are shown in dark and light blue, respectively. We also included the averaged Swift-BAT spectrum from the 70-month survey (Baumgartner et al. 2013). The residuals obtained from the joint fit for the Swift and NuSTAR spectra using a typical model for a moderately obscured Seyfert 2 as NED01 are shown in the inset. The model, composed of an absorbed primary power-law component, a scattered component, with the same photon index (Γ), and a reflected component, is able to reproduce the broad-band emission, but it leaves some residuals in absorption (see Sect. 7.1).