Spiral wirewound resistor composed by a ceramic tube with a high heat dissipation level and mechanical resistance used as support for the spiral resistive wire. Specially recommended
“GEARLESS” motor and for its “noiseless” characteristic.
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: 375ºC
Operating voltage: 1000 v.a.c.
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: 4800W