Wire wound power resistors, designed to your spec
We have provided and developed a wide range of wire wound resistors for 25 years: fixed resistors, adjustable resistors, and variable resistors including rheostats. From lift companies to rail authorities, we build to suit your need.
What is a wire wound resistor?
Wire wound resistors are precision resistors built by winding an alloy wire around a core to create a high-performance electrical component. They offer exceptional heat dissipation, high power handling, and superior stability and reliability.
They are ideal for applications requiring accuracy and durability, especially in high-stress environments. We offer them in a range of configurations to suit your exact need.
Coatings and configurations
D-type coating
A non-brittle, impervious encapsulation based on advanced silicone resins with high-density ceramic filler, for maximum insulation and heat transfer.
V-type coating
Vitreous enamel: high-density borosilicate glass fused at elevated temperature onto a special steatite former. Continuous operation at 350 degrees C is possible.
Adjustable resistors
Available from 20 watts upwards, with an exposed winding track contacted by a movable silver-contact clip.
Reliable termination
Resistance element silver-soldered to the terminal band at a point remote from the terminal projection to avoid bending strain.
Permanent markings
Printed with physical size, wattage at 250 degree C rating, terminal type, resistance value, and tolerance.
Where our resistors are used
Elevators and lifts
Supplied to major lift companies for seamless operation.
Rail transport
Cost-effective replacements for non-standard rail parts, designed for local rail authorities.
Scientific instruments
Precision resistors for high-sensitivity equipment.
Dynamic braking
Reliable solutions for high-load braking applications.
Over 25 years we have supplied and designed resistors for most of the major lift and elevator companies, and helped replace expensive non-standard spare parts for local rail authorities.
Compare this against every ceramic body we manufacture in the ceramic materials guide, or download the full material specification chart from technical information.
Wire Wound Resistors: common questions
Can you replace a discontinued or non-standard resistor?
What is the difference between D-type and V-type coatings?
What power ratings can you supply?
Related products
Ceramic Porcelain Insulators
Power parts, porcelain bodies, glazed high-voltage insulators, and ceramic heat sinks. Custom shapes a specialty.
Alumina Ceramics
92-99.8% pure alumina. Wear-resistant plates, tubes, and any formed shape, fired in our continuous tunnel kilns.
Technical Expertise
Replacing an underperforming part with a ceramic one? We engineer it from scratch, and guarantee the cheapest tooling.
Need wire wound resistors?
Send a drawing, a sample, or just a description of what is failing. We will reply within 2 business days with whether we can make it, how, and at what price.