Abstract: A modular controller includes an enclosure having an interior, a motherboard with a signal trace and a power trace supported within the interior of the enclosure, and one or more control section. The control section includes one or more of an input power section, an electromagnetic interference section, a logic section, a control section, a output power section, and a signal section that is supported by the motherboard to selectively flow of electrical power through the power trace using a control signal carried by the signal trace. Electrical systems and methods of making modular controllers are also described.

Abstract: A modular controller includes an enclosure having an interior, a motherboard with a signal trace and a power trace supported within the interior of the enclosure, and one or more control section. The control section includes one or more of an input power section, an electromagnetic interference section, a logic section, a control section, a output power section, and a signal section that is supported by the motherboard to selectively flow of electrical power through the power trace using a control signal carried by the signal trace. Electrical systems and methods of making modular controllers are also described.

Abstract: A backshell assembly for a bulkhead electrical connector includes a lug defining a central lug bore, a nut defining a central nut bore, and a ring defining a central ring bore. The lug is configured to be coupled to the bulkhead electrical connector, the nut is configured to be coupled to the lug, and the ring is configured to be retained by the nut at least partially within at least one of the central lug bore and the central nut bore. A wire assembly to be coupled to the bulkhead electrical connector includes electromagnetic shielding, and such electromagnetic shielding is configured to be electrically grounded to the bulkhead electrical connector via the backshell assembly.

Abstract: A backshell assembly for a bulkhead electrical connector may include a lug defining a central lug bore, a nut defining a central nut bore, and a ring defining a central ring bore. The lug may be configured to be coupled to the bulkhead electrical connector, the nut may be configured to be coupled to the lug, and the ring may be configured to be retained by the nut at least partially within at least one of the central lug bore and the central nut bore. A wire assembly to be coupled to the bulkhead electrical connector may include electromagnetic shielding, and such electromagnetic shielding may be configured to be electrically grounded to the bulkhead electrical connector via the backshell assembly.