3296W 型玻璃釉预调电½器技术承认书
电气特性 Electrical Characteristcs
标称阻值范围(Range of normal resistance):10
Ω—2MΩ
阻值允许偏差(Resistance tolerance):±10%
终端电阻(Termial resistance):≤5%R 或 5Ω
接触电阻变化(Contact resistance variation):CRV≤5%或 5Ω
耐电压(Winthstand Voltage):640Vac
绝缘电阻(Insulation resistance):Ri≥1G(100Vdc)
有效电行程(Effective electrical travel):>总机械行程的 70%(>70% of total mechanical
travel)
极限动触点电流(Limit current of moving comtact):100mA
环境特性 Environment Characteristics
额定功率(Rated Power)(315V max):0.5W 70
℃,0W 125℃
温度范围(Temperature range):-55℃——+125℃
温度系数(TCR):±250ppm/℃
温度变化(Temperature variation):-55℃,30min,+125℃,30min 循环 5 次ΔR≤5%R,
Δ(Uab/Uac)≤±
5%
振动(Vibration):10-500Hz,0.75mm,6h
电气间断(electrical interruption):≤100/us ΔR≤5%R,Δ(Uab/Uac)≤±7.5%
碰撞(Collision):390m/S ,4000 次
ΔR≤5%R
2
气候顺序(Climate category):IEC68-2-2 等(meet IEC68-2-2 etc)ΔR≤10%R,R1≥100MΩ
70
℃电气耐久性(Electrical endurance at 70℃):0.5W,1000h ΔR≤10%R CRV≤3%R 或 5
Ω
恒定湿热(Steady damp-heat):IEC68-2-3,Ca,96h ΔR≤10%R,R1≥100MΩ
物理特性 Physical Characteristics
总机械行程(Total Mechanical Travel):30
±2 圈(30±2 turns)
起动力矩(Staring Torque):≤30mN.m
标准包装(Standard Packaging):50 只/管(50pcs.per tube)
标志(Mark):阻值允许偏差(10%不标注)、阻值代码、产品型号
Resistance tolerance (when no identification,it is of ±
10%)resistance code type