Analysis of small intermediate relays from leading manufacturers Yu.M. Zaytsev, A.V. Mikhailov, E.V. Mikhailova, N.N. Nikolaev, V.N. Petrov and D.S. Sazanov E3S Web Conf., 220 (2020) 01062 Published online: 16 December 2020 DOI: 10.1051/e3sconf/202022001062