to the lack of excited states in the A = 3 system, the zero energy state is the first one above the ground state. In the case of n − d scattering at zero energy, the J = 1 2 + state is orthogonal to the triton ground state and, for this reason, the wave function presents a node in the relative distance between the incident nucleon and the deuteron. The position of the node is related to the scattering length and it is also sensitive to the relation between the overall attraction and repulsion of the interaction. Several of the realistic NN potentials underestimate the triton binding energy. Adding a TNF, which in general can include an attractive as well as a repulsive component, with a strength fixed for example to reproduce the triton binding energy, the balance between the overall attraction and repulsion of the interaction changes with respect to that one produced by the NN potential alone. And, as we will show, this leads to different predictions of $^{2}$a$_{nd}$ and the α -particle binding energy B ( $^{4}$He). An analysis of the parametrization of a chiral TNF, in order to describe the triton binding energy B ( $^{3}$H), B ( $^{4}$He) and $^{2}$a$_{nd}$ , has been performed in Ref. [9]. A similar analysis has not been done for the local models URIX, TM’ and N2LOL since only the three- or four-body binding energy has been considered in the determination of their parametrization but not $^{2}$a$_{nd}$ . In Ref. [13] results for different combinations of NN interactions plus TNF models are given. We report the results for the quantities of interest in Table I. From the table, we can observe that the models are not able to describe simultaneously the A = 3 , 4 binding energies and $^{2}$a$_{nd}$ . Triggered by this fact, in this paper we make a comparative study of the aforementioned TNF models. To this end we use the AV18 [14] as the reference NN interac- tion and the three-nucleon interaction models will be added to it. Parametrizations of the URIX and TM’ models already exist in conjunction with the AV18 potential. Conversely the N2LOL TNF has been constructed using the N3LO-Idaho potential from Ref. [15]. So, in a first step, we have adapted its parametrization in order to reproduce, in conjunction with the AV18 interaction, B ( $^{3}$H). Successively, we study the sensitivity of different parametrizations in the description of B ( $^{4}$He) and $^{2}$a$_{nd}$ . Selecting those parametrizations that predict these three quantities close to their experimental values, we study some polarization observables in p − d scattering at E$_{lab}$ = 3 MeV. As an interesting result, we have observed that the predictions of the different parametrizations fall in a narrow band that, in the case of the vector analyzing powers, has a different position for each model, indicating a sensitivity to the short range structure of the TNF. 3