The safety switch controlling the ignition circuit in gas engine and flameout magnetic valve in diesel engine is used in air brake system to realize the automatic protect.

• 为保证车辆的安全运行,在气压制动系统中施加安全保护开关,控制发动机的点火电路(汽油机)或熄火电磁阀电路(柴油机),可实现低气压时的自动保护。