Manufacturing
Manufactured with the Technical Expertise of Contrex d.o.o. of Slovenia.
The variable resistors are in accordance with the 2002/95/EC (RoHS) directive.
Construction According to
EN 61010-1 Standard
RHEOSTAT
Reliable, Accurate and Built for Performance
Available in resistance values from 0.5 Ohm to 10000 Ohm
Our Products
Test, Calibrate, Control
Industries We Serve
🧑🏫
Education & Training
🏭
Industrial & Manufacturing
⚡
Energy & Utilities
🔬
Research & Defense
Current & voltage control, Load simulation,
Motor speed adjustment,
Educational demonstrations
Core Applications
VARIABLE RESISTORS
Variable Resistor is a versatile and essential tool for controlling DC and AC currents or voltages in various electrical applications. Designed for laboratories, educational institutions, and professional use, it functions as both a rheostat and a potentiometer, ensuring precise and reliable performance. Built with wire wound resistors, it meets international standards and provides smooth resistance control. The Indosaw Contrex Rheostat includes slide wire rheostats, sliding rheostats, and wiper resistance technology for enhanced accuracy. It also serves as a dimmer or dimmerstat, making it ideal for applications requiring a variable rheostat. Whether for research, testing, or industrial use, the Indosaw Contrex Rheostat delivers unmatched precision and durability.
INDOSAW TAKE OVER PRODUCTION OF CONTREX D.O.O. SLOVENIA FOR STRATEGIC COLLABORATION

Indosaw has take over production of Contrex d.o.o of Slovenia, a leading manufacturer of rheostats in Europe, to produce variable resistors ranging from 1 ohm to 10,000 ohms.
- The variable resistors are in accordance with the 2002/95/EC (RoHS) directive.
- They have IP20 certification for protection.
Know-How Certificate
This certificate highlights our dedication to innovation, superior quality, and excellence. It is backed by extensive research, hands-on experience, and cutting-edge technology—ensuring that every solution we deliver is grounded in expert knowledge and trusted engineering practices.
Did you know?
Wire-wound rheostats can survive rough conditions—unlike electronic circuits, they keep working even in dusty, hot industrial environments.