SENTRON, 3KC transfer switching equipment, manually operated, MTSE, size: 4, 3-pole, Iu: 800 A, Ue AC: 415 V, Ie at AC-33 B at 415 V: 500 A, Ie at AC-23 A at 690 V: 500 A, Screw mounting, front operating mechanism, at the left end, without handle, busbar connection