XMM-Newton observation of the cluster Zw 1305.4+2941 in the field SA 57

We report the details of an XMM-Newton observation of the cluster of galaxies Zw 1305.4+2941 at the intermediate redshift z = 0.241, increasing the small number of interesting X-ray constraints on properties of similar to 3 keV systems above z = 0.1. Based on the similar to 45 ks XMM-Newton observation, we find that within a radius of 228 kpc the cluster has an unabsorbed X-ray flux of f(X) = (2.07 +/- 0.06) x 10(-13) ergs cm(-2) s(-1), a temperature of kT = 3.17 +/- 0.19 keV, in good agreement with the previous ROSAT determination, and an abundance of 0.93(-0.29)(+0.24) Z(circle dot). Within r(500) = 723 +/- 16 kpc the rest-frame bolometric X-ray luminosity is L-X(r(500)) = (1.25 +/- 0.16) x 10(44) h(70)(-2) ergs s(-1). The cluster obeys the scaling relations for L-X, T, and the velocity dispersion sigma(v) derived at intermediate redshift for kT less than or similar to 4 keV, for which we provide new fits for all objects in the literature. The mass derived from an isothermal NFW model fit is M-vir = (2.77 +/- 0.21) x 10(14) M-circle dot, with the concentration parameter c = 7.9 +/- 0.5.