Cemented tubular wirewound resistor composed by a ceramic tube with a high heat dissipation level and mechanical resistance used as support for the resistive wire or ribbon. Covering the tube and the extremities, we use a galvanised steel enclosure suitably perforated for correct ventilation. This protection is IP20. We can supply it with or without thermal sensor and with the customer’s ohm value specification.
Temperature coefficient:40 ppm. a 250 ppm.
Maximum load peak: 10xPn. 5 seg.
Maximum admissible voltage (in continuous): √Pn x R*
Maximum temperature on the hottest point on the resistor’s surface at nominal power: 425ºC
Operating voltage: 1000 v.c.a
Standard protection: IP20
Resistor tolerance: +-5%
Temperature 40% work cycle: 40º/60º C
Pn: Rated power / *R: Ohm value
Cycle time: maximum 120 seg.
Nominal Power: 6000W