We reexamine the well-known Israel-Wilson-Perjés (IWP) solution by treating it as a special case of the Bretón-Manko metric for two counterrotating Kerr-Newman masses, and we show in particular that this solution is well behaved and free of naked ring singularities. We also obtain a concise form of the corresponding metric function $\omega$ and of the $\phi$ component of the electromagnetic four-potential. The IWP solution is then compared with two binary configurations of corotating Kerr-Newman sources in the charge equal to mass case to highlight the role of angular momenta, magnetic monopole and dipole moments in achieving equilibrium of charged rotating constituents.

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• General relativity