An electrical connector configured to interconnect two electrical bus bars, comprising: a first pair of electrical contacts configured to receive the two electrical bus bars, each electrical contact in the pair of electrical contacts having a central base, a first plurality of elongate contact fingers extending longitudinally from the base in a first direction, and a second plurality of elongate contact fingers extending longitudinally from the base in a second direction opposite to the first direction; a second pair of electrical contacts, wherein each electrical contact in the second pair of electrical contacts has a central base, a first plurality of elongate contact fingers extending longitudinally from the base in the first direction, and a second plurality of elongate contact fingers extending longitudinally from the base in the second direction, wherein outwardly-oriented surfaces of the second pair of contacts have a different profile than inwardly-oriented surfaces of the first pair of contacts such that the second pair of contacts nest against the first pair of contacts, and wherein the outwardly-oriented surfaces of the second pair of contacts are in intimate contact with the inwardly-oriented surfaces of the first pair of contacts; and a spring assembly having a retaining band surrounding the bases of the first and second pairs of electrical contacts (14A, 14B) and configured to secure the first and second pairs of electrical contacts (14A, 14B) within the electrical connector, the spring assembly further having a first plurality of elongate spring fingers extending longitudinally from the retaining band in the first direction, and a second plurality of elongate spring fingers extending longitudinally from the retaining band in the second direction, wherein a spring finger of the first or second plurality of spring fingers (30A, 30B) is in compressive contact with at least one contact finger of the first and second plurality of elongate contact fingers (18A, 18B) of the second pair of electrical contacts. a first pair of electrical contacts configured to receive the two electrical bus bars, each electrical contact in the pair of electrical contacts having a central base, a first plurality of elongate contact fingers extending longitudinally from the base in a first direction, and a second plurality of elongate contact fingers extending longitudinally from the base in a second direction opposite to the first direction; a second pair of electrical contacts, wherein each electrical contact in the second pair of electrical contacts has a central base, a first plurality of elongate contact fingers extending longitudinally from the base in the first direction, and a second plurality of elongate contact fingers extending longitudinally from the base in the second direction, wherein outwardly-oriented surfaces of the second pair of contacts have a different profile than inwardly-oriented surfaces of the first pair of contacts such that the second pair of contacts nest against the first pair of contacts, and wherein the outwardly-oriented surfaces of the second pair of contacts are in intimate contact with the inwardly-oriented surfaces of the first pair of contacts; and a spring assembly having a retaining band surrounding the bases of the first and second pairs of electrical contacts (14A, 14B) and configured to secure the first and second pairs of electrical contacts (14A, 14B) within the electrical connector, the spring assembly further having a first plurality of elongate spring fingers extending longitudinally from the retaining band in the first direction, and a second plurality of elongate spring fingers extending longitudinally from the retaining band in the second direction, wherein a spring finger of the first or second plurality of spring fingers (30A, 30B) is in compressive contact with at least one contact finger of the first and second plurality of elongate contact fingers (18A, 18B) of the second pair of electrical contacts.