Quick Answer: The Rheostat Standard Range - 4A is a 16 ohm rheostat rated at 4 A, wound with heavily oxidised resistance wire on a vitreous enamelled tube, with a nickel-plated phosphor bronze sliding contact.
Last updated: October 2026
Key Features
Resistance 16 ohms; maximum current 4 A
Heavily oxidised resistance wire on a vitreous enamelled tube
Winding secured with ceramic cement
Multi-leaf phosphor bronze sliding contact, nickel-plated for corrosion resistance
Tube supported on diecast end stands
4 mm terminal posts take 4 mm plugs, spade terminals or bare-ended leads
Technical Specifications
Specification
Value
Resistance
16 ohms
Maximum current
4 A
Tube size
200 mm x 63 mm
Overall size
255 mm x 100 mm x 63 mm
Sliding contact
Multi-leaf phosphor bronze, nickel-plated
Terminals
4 mm terminal posts
About This Product
The resistance wire is heavily oxidised and wound on a vitreous enamelled tube, with the winding held in place by ceramic cement. A heavy duty, multi-leaf sliding contact moves along the winding, and the tube is supported on diecast end stands. Export supply of the Rheostat Standard Range - 4A can be arranged to laboratories and schools in Ecuador, Kiribati, Antigua and Barbuda, Timor-Leste and Venezuela.
Frequently Asked Questions
Q1. What leads can be connected to the rheostat? Its 4 mm terminal posts accept conventional 4 mm plug leads, spade terminals or bare-ended leads.
.jpg)
.jpeg)
.jpg)