... ,Class C,Lower residual,large discharge current 3,Voltage Protector Voltage Protector SUN-C20/4 Key words : Class C Surge ... ,Surge Protection Product introduce and application: SUN-type surge protector(hereinafter referred to as SPD)adapted to AC,mainly used ... as protected model. SUN-based high quality surge protector to use non-linear components and low residual voltage,small discharge current,modulus ...