Märklin 3030

SJ Electric Locomotive, DA 884 The DA is a heavy electric locomotive used by SJ for mixed-traffic and heavy freight duties. DA 884 is one member of this robust class, designed for high tractive effort and reliable performance on electrified mainlines. Key points Type: DA — electric locomotive Number: 884 (fleet identification) Wheel arrangement: Co’Co’ (six driven axles) Role: Heavy freight and mixed-traffic mainline work Design: Sturdy frame and bogies, powerful traction motors and effective cooling for sustained operation Electrical systems: High‑power transformer/converter traction equipment with strong braking capability (rheostatic/regenerative depending on subseries) Performance: Excellent low‑speed tractive effort for heavy trains and steady high‑speed performance for passenger turns Service: Employed across SJ’s electrified network on demanding freight corridors and occasional passenger duties