Cemented wire wound resistors with axial wire leads, with encaps
Dates and characteristics
Maximun relative change of resi stance after electrical power test ::
Tolerances  F (± 1%), G (± 2%)  J (± 5%), K (± 10%)  
1000 h  PN  (40°C)  ± (2% + r)  ± (5% + r)  
1000 h  0,7 PN  (40°C)  ± (1% + r)  
1000 h  0,2 PN  (40°C)  ± (0,2% + r)  
r=0,0002  Ohm for  =< RN<  1 Ohm  Other technical parameters are possible on request  
r=0,02  Ohm for  1 Ohm  =< RN<  10 Ohm  
r=0,05  Ohm for  10 Ohm  =< RN=<  25 Ohm  
r=0,002 RN  Ohm for  =< RN >  25 Ohm 
TEST METHODS APPLIED:

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
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