ItalOhm BR KRAH

Short term increase of electrical power : cyclical electrical increase of resistor 80 cycles to t = 50 s with 6,25 PN (0,1 t = on; 0,9 t = off) Long term test: Dissipation of de resistor for a time of 1000 h with PN; 0,7 PN res. 0,2 PN Long term environmental test: Dissipation of the resistor at 40°C and 93% relative humidity over 56 days with PN; Periodical change of temperature: Cyclical dissipation of the wire –wound resistor for 5 periods Upper Temperature: 155°C 30 min. Lower Temperature: -55°C 30 min. Mechanical stength of wire leads: Tractive power: 4 x 12 – 5 N9 x 20 – 20 N 6 x 16 – 10 N9 x 32 – 20 N 6 x 23 – 10 N9 x 50 – 20 N 6 x 23 – 10 N12 x 52 – 20 N Bending strength: 2 bends to 90° Torsional strength: 2 distortions round 180° On request, wire leads can be bended. Reference Documents: IEC 115, CECC 40000 / 40200 or DIN 45920 / 45921 The BR resistors can be loaded with single impulses or very high Voltage (standard impulse 1,2/50 acc. to IEC 115). On request, the resistors of the BR series can be executed as fuse resistors