Overview
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.
Key Features
- 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
Models
Education Solution Inquiry
Custom specifications and matching solutions for K–12 physics labs, university electrical courses, training institutions and similar education scenarios. Volume discounts · worry-free after-sales.
- Custom specs (current / resistance / length)
- Matching teaching plans & manuals
- Bulk-purchase discounts & invoicing
- 12-month warranty · factory-direct
Typical Applications
Sample Request
Standard samples are provided free of charge in reasonable quantities (shipped within 2–3 business days). Custom samples are delivered within 2–4 weeks. Please use the form on the right to tell us:
- Company and contact details
- Target part number or key specs (power / resistance / package)
- Application scenario and estimated annual volume
- Shipping address and expected delivery date