Insulated wire for use in electronic equipment, comprising an electrically conductive core and an insulating layer and/or a insulating jacket consisting of a flame retardant thermoplastic composition surrounding the electrically conductive core, wherein the flame retardant thermoplastic composition comprises a thermoplastic polymer comprising a copolyester elastomer and/or a copolyamide elastomer, a metal salt of a phosphinic acid of the formula [R 1 R 2 P O] - m M m+ (formula I) and/or a diphosphinic acid of the formula [O PR 1 -R 3 -PR 2 O] 2 - n M) x m+ (formula II), and /or a polymer thereof, wherein - R 1 and R 2 are equal or different substituents chosen from the group consisting of hydrogen, linear, branched and cyclic C1-C6 aliphatic groups, and aromatic groups, - R 3 is chosen from the group consisting of linear, branched and cyclic C1-C10 aliphatic groups and C6-C10 aromatic and aliphatic-aromatic groups, - M is a metal chosen from the group consisting of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, and K, and - m, n and x are equal or different integers in the range of 1-4, a flame retardant component consisting of a nitrogen containing flame retardant synergist and/or a phosphor/nitrogen containing flame retardant, and an inorganic compound chosen from the group consisting of basic and amphoteric oxides, hydroxides, carbonates, silicates, borates, stannates, mixed oxide-hydroxides, oxide-hydroxide-carbonates, hydroxide-silicates and hydroxide-borates, and mixtures thereof. a thermoplastic polymer comprising a copolyester elastomer and/or a copolyamide elastomer, a metal salt of a phosphinic acid of the formula [R 1 R 2 P O] - m M m+ (formula I) and/or a diphosphinic acid of the formula [O PR 1 -R 3 -PR 2 O] 2 - n M) x m+ (formula II), and /or a polymer thereof, wherein - R 1 and R 2 are equal or different substituents chosen from the group consisting of hydrogen, linear, branched and cyclic C1-C6 aliphatic groups, and aromatic groups, - R 3 is chosen from the group consisting of linear, branched and cyclic C1-C10 aliphatic groups and C6-C10 aromatic and aliphatic-aromatic groups, - M is a metal chosen from the group consisting of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, and K, and - m, n and x are equal or different integers in the range of 1-4, - R 1 and R 2 are equal or different substituents chosen from the group consisting of hydrogen, linear, branched and cyclic C1-C6 aliphatic groups, and aromatic groups, - R 3 is chosen from the group consisting of linear, branched and cyclic C1-C10 aliphatic groups and C6-C10 aromatic and aliphatic-aromatic groups, - M is a metal chosen from the group consisting of Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, and K, and - m, n and x are equal or different integers in the range of 1-4, a flame retardant component consisting of a nitrogen containing flame retardant synergist and/or a phosphor/nitrogen containing flame retardant, and an inorganic compound chosen from the group consisting of basic and amphoteric oxides, hydroxides, carbonates, silicates, borates, stannates, mixed oxide-hydroxides, oxide-hydroxide-carbonates, hydroxide-silicates and hydroxide-borates, and mixtures thereof.