Modular power resistors in aluminum casing - BWD series
  • Modular power resistors in aluminum casing - BWD series

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Manufacturer: Koch

Modular power resistors in aluminum casing - BWD series

technical data:
BWD 250 series
  
Nominal power [W]
100 (250 przy ED = 35%; JA= 20°C)
dimensions [mm]
110 x 80 x 15
Available resistance [Ω]
10, 27, 33, 47, 72, 100, 150, 200, 220, 330,430, 620, 830
   
BWD500 series
  
Nominal power[W]
200 (500 przy ED = 35%; JA= 20°C)
Dimensions [mm]
216 x 80 x 15
Available resistance [Ω]
10, 12, 15, 22, 27, 35, 40, 43, 47, 50, 60, 72,100, 130, 150, 160, 200, 210,
 
240, 300, 310,430, 620
   
BWD1000 series
  
Nominal power[W]
400 (1000 przy ED = 35%; JA= 20°C)
Dimensions [mm]
216 x 80 x 30
Available resistance [Ω]
5, 10, 27, 33, 47,72, 100, 150,200, 300

Common parameters

Parameter(JA=20°C) Value unit Remarks
Tolerance ±5 % Room temperature
Temperature coefficient TK 20...100   10-6/K
Insulation resistance Rizol >100 MΩ V=1000VDC
Inductance L <30 µH f=300kH, V=50mV
Casing capacity C <300 pF f=300kH, V=50mV
Operating maximal voltage Vn V 
  V 
Test insulation voltageUizol >4000 V AC; f=50Hz; t=1 min.
Max. casing temperatureJC <250 °c Natural cooling
  <300* °c  
Store temperature JS -25...85 °c  
Caution
* - only for BWD1000 series
BWD 250
BWD 1000
BWD 600
Less
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technical data:
BWD 250 series
  
Nominal power [W]
100 (250 przy ED = 35%; JA= 20°C)
dimensions [mm]
110 x 80 x 15
Available resistance [Ω]
10, 27, 33, 47, 72, 100, 150, 200, 220, 330,430, 620, 830
   
BWD500 series
  
Nominal power[W]
200 (500 przy ED = 35%; JA= 20°C)
Dimensions [mm]
216 x 80 x 15
Available resistance [Ω]
10, 12, 15, 22, 27, 35, 40, 43, 47, 50, 60, 72,100, 130, 150, 160, 200, 210,
 
240, 300, 310,430, 620
   
BWD1000 series
  
Nominal power[W]
400 (1000 przy ED = 35%; JA= 20°C)
Dimensions [mm]
216 x 80 x 30
Available resistance [Ω]
5, 10, 27, 33, 47,72, 100, 150,200, 300

Common parameters

Parameter(JA=20°C) Value unit Remarks
Tolerance ±5 % Room temperature
Temperature coefficient TK 20...100   10-6/K
Insulation resistance Rizol >100 MΩ V=1000VDC
Inductance L <30 µH f=300kH, V=50mV
Casing capacity C <300 pF f=300kH, V=50mV
Operating maximal voltage Vn V 
  V 
Test insulation voltageUizol >4000 V AC; f=50Hz; t=1 min.
Max. casing temperatureJC <250 °c Natural cooling
  <300* °c  
Store temperature JS -25...85 °c  
Caution
* - only for BWD1000 series
BWD 250
BWD 1000
BWD 600
Less
Read more