Powerohm ER 和 ERB 型 螺旋式电阻用于交流和直流共电应用。最常用于变速刹车，马达启动控制，假性载荷设备，中性点接地用途。ER 和 ERB 型电阻适用于底阻值高电流连续性运行机制。它的高质子性使它具有能抗高电流及连续性运行机制。其熔点高达1500 C，短时允许温升为800 C 的高温。电阻特性通流(安陪)电阻值(欧姆) 2 段长3 段长4 段长5 段长 6 段长 7 段长161.722.603.504.405.306.20181.302.02.73.54.24.90201.201.802.43.13.74.3023.891.371.852.32.83.3026.691.061.441.812.22.6029.49.751.201.291.551.8232.43.66.901.131.371.6036.35.54.73.921.111.3040.27.41.56.70.85.9945.25.38.52.65.78.9250.19.30.40.51.62.7260.15.23.32.40.48.5770.12.19.26.33.39.4685.07.11.15.19.23.27100.06.10.13.16.20.23