An electrical protection system operable to be safety installed and removed with equipment under load, comprising: a protection device enclosure including: a trip unit, operable to move the electrical protection system between an open state to a closed state; a toggle interlock, in physical communication with the trip unit and operable to move laterally in response to the electrical protection system moving between the open state and the closed state; a first contact assembly in electrical communication with the trip unit on an anode side of the trip unit and protruding from the protection device enclosure; and a second contact assembly in electrical communication with the trip unit on a cathode side of the trip unit and protruding from the protection device enclosure; wherein the first contact assembly and the second contact assembly are operable to rotate between an insertion state and a conductible state; wherein the first contact assembly and the second contact assembly each define interlock tabs as depressions along the length of the contact assembly, the interlock tabs allowing the toggle interlock to move freely when all contact assemblies are in the conductible state and mechanically preventing the trip unit from being in the closed state via the toggle interlock when at least one of the contact assemblies is in the insertion state; a first terminal, in electrical communication with the first contact assembly and an upstream portion of a circuit which the electrical protection system is to protect; and a second terminal, in electrical communication with the second contact assembly and a downstream portion of the circuit which the electrical protection system is to protect; wherein the first terminal and the second terminal each include installation collars, the installation collars preventing insertion or removal of an associated contact assembly in the conductible state; and wherein the first terminal and the second terminal each include contact blocks, the contact blocks establishing electrical communication between the circuit and the associated contact assembly when the associated contact assembly is in the conductible state. a protection device enclosure including: a trip unit, operable to move the electrical protection system between an open state to a closed state; a toggle interlock, in physical communication with the trip unit and operable to move laterally in response to the electrical protection system moving between the open state and the closed state; a first contact assembly in electrical communication with the trip unit on an anode side of the trip unit and protruding from the protection device enclosure; and a second contact assembly in electrical communication with the trip unit on a cathode side of the trip unit and protruding from the protection device enclosure; a trip unit, operable to move the electrical protection system between an open state to a closed state; a toggle interlock, in physical communication with the trip unit and operable to move laterally in response to the electrical protection system moving between the open state and the closed state; a first contact assembly in electrical communication with the trip unit on an anode side of the trip unit and protruding from the protection device enclosure; and a second contact assembly in electrical communication with the trip unit on a cathode side of the trip unit and protruding from the protection device enclosure; wherein the first contact assembly and the second contact assembly are operable to rotate between an insertion state and a conductible state; wherein the first contact assembly and the second contact assembly each define interlock tabs as depressions along the length of the contact assembly, the interlock tabs allowing the toggle interlock to move freely when all contact assemblies are in the conductible state and mechanically preventing the trip unit from being in the closed state via the toggle interlock when at least one of the contact assemblies is in the insertion state; a first terminal, in electrical communication with the first contact assembly and an upstream portion of a circuit which the electrical protection system is to protect; and a second terminal, in electrical communication with the second contact assembly and a downstream portion of the circuit which the electrical protection system is to protect; wherein the first terminal and the second terminal each include installation collars, the installation collars preventing insertion or removal of an associated contact assembly in the conductible state; and wherein the first terminal and the second terminal each include contact blocks, the contact blocks establishing electrical communication between the circuit and the associated contact assembly when the associated contact assembly is in the conductible state.