热过载继电器，JRS2400400F JRS2-400/F 250-400A EFH184- 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250116-45561951.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250116-63038617.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-70736520.jpg