
概述
A sliding rheostat is a variable resistor that continuously adjusts resistance by changing the contact position — widely used for linear adjustment of current and voltage, and for load control. The product is built by precision-winding high-purity resistance alloy wire (such as nickel-chromium) onto a heat-resistant ceramic tube or insulating substrate, paired with a high-conductivity slider and metal rail to deliver stable, smooth, high-precision resistance adjustment. Its rugged design provides good heat dissipation and mechanical strength — well-suited to long-term industrial operation. Most commonly used in teaching & lab equipment, industrial test systems, motor control, power supplies and electronic equipment commissioning.
主要特性
- Linear resistance variation
- Smooth adjustment without jumps, high control precision
- Wirewound construction
- Supports high current and high power applications
- Ceramic core + alloy wire
- Excellent thermal stability
- Stable slider contact, long mechanical life
- Suitable for frequent-adjustment applications
- Open structure design
- Promotes natural air convection
- Custom power and resistance ranges
- Meets diverse application needs
型号
教育方案咨询
面向中小学物理实验、高校电工课程、培训机构等教育场景,提供定制规格与配套方案。批量优惠 · 售后无忧。
- 定制规格(电流 / 阻值 / 长度)
- 配套教学方案与说明书
- 批量采购优惠 · 可开发票
- 整机 12 个月质保 · 工厂直供
典型应用

常见问题
贵司的滑动变阻器功率和阻值范围是多少?
滑片动作平滑度如何?接触寿命有多长?
滑动变阻器是否经过校准?典型精度是多少?
滑动变阻器是否可作为插拔式套件供应或串并联以提高电流?
在用的旧型滑动变阻器是否有备件供应?
申请样品
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- 公司及联系方式
- 目标型号或关键参数(功率 / 阻值 / 封装)
- 应用场景及预计年用量
- 收货地址及期望交付日期
