A protected resistor consists not only of a spiral wire-wound resistor but also of a ceramic tube with high dissipation of heat and a properly perforated IP20 galvanized steel box. That’s why a protected resistor has some applications such as speed and frequency variators, cranes, industrial automation, motor control, dynamic braking, renewable energies (such as wind and solar) and both loading and unloading.
We manufacture this kind of protected resistors under the client’s specifications, customizing the resistor with a cemented coiled tubular resistance (SAC) or Worm tubular wound (SI), a high dissipation of heat with a thermal protector, a value of ohms according to clients’ needs and a gearless or silence ability.
The protected resistor of ECOMSA owns a long lifespan due to the high quality of the materials and to the accuracy of the manufacturer. They operate at a maximum temperature of the nominal power of 375ºC and an operating voltage of 1 000 v.c.a. Such as the Protected Resistor SI/PR 600 W or Protected Resistor SI/PR 50 000 W.