西武3000系は1983年に登場し、101系に似たデザインを持ちますが、性能は異なります。チョッパ制御と電気指令式ブレーキを採用しています。合計72両が製造され、6両編成と8両編成を組みました。主に池袋線で使用され、後に引退しました。
Seibu Series 3000, introduced in 1983, has a design similar to Series 101, but its performance is different. The trains use chopper control and electric command brakes. A total of 72 cars were built, formed into six-car and eight-car trainsets. They were mainly used on the Ikebukuro Line and were later withdrawn.