An electrical switching apparatus comprising: a plurality of first terminals including two input terminals structured to electrically connect to a direct current power source; a plurality of second terminals including two output terminals structured to electrically connect to a direct current load; a plurality of pairs of separable contacts; a plurality of conductors that electrically connect each pair of separable contacts between one of said first terminals and one of said second terminals; a plurality of jumpers, each of said plurality of jumpers electrically connecting two pairs of said separable contacts in series, each of said plurality of jumpers being electrically connected to: (a) two of said first terminals or two of said second terminals; or (b) one of said first terminals and one of said second terminals; and an alternating current electronic trip circuit configured to control the plurality of pairs of separable contacts to separate based on the alternating current output from the transductor circuit; characterized by: a transductor circuit that senses a direct current between at least one of the input terminals and at least one of the output terminals and outputs an alternating current proportional to the direct current; wherein the plurality of conductors include a first conductor and a second conductor; wherein the transductor circuit includes a first current transformer having a secondary winding inductively coupled with the first conductor, a second current transformer having a secondary winding inductively coupled with the second conductor, and an alternating current power source configured to provide alternating voltage to the first current transformer and the second current transformer via a third transformer; and wherein the secondary windings (114, 124) of the first current transformer and the second current transformer are electrically connected in series-opposition such that an electromotive force induced in the secondary winding of the first current transformer by the direct current is in opposition with an electromotive force induced in the secondary winding of the second current transformer by the direct current. a plurality of first terminals including two input terminals structured to electrically connect to a direct current power source; a plurality of second terminals including two output terminals structured to electrically connect to a direct current load; a plurality of pairs of separable contacts; a plurality of conductors that electrically connect each pair of separable contacts between one of said first terminals and one of said second terminals; a plurality of jumpers, each of said plurality of jumpers electrically connecting two pairs of said separable contacts in series, each of said plurality of jumpers being electrically connected to: (a) two of said first terminals or two of said second terminals; or (b) one of said first terminals and one of said second terminals; and an alternating current electronic trip circuit configured to control the plurality of pairs of separable contacts to separate based on the alternating current output from the transductor circuit; a transductor circuit that senses a direct current between at least one of the input terminals and at least one of the output terminals and outputs an alternating current proportional to the direct current; wherein the plurality of conductors include a first conductor and a second conductor; wherein the transductor circuit includes a first current transformer having a secondary winding inductively coupled with the first conductor, a second current transformer having a secondary winding inductively coupled with the second conductor, and an alternating current power source configured to provide alternating voltage to the first current transformer and the second current transformer via a third transformer; and wherein the secondary windings (114, 124) of the first current transformer and the second current transformer are electrically connected in series-opposition such that an electromotive force induced in the secondary winding of the first current transformer by the direct current is in opposition with an electromotive force induced in the secondary winding of the second current transformer by the direct current.