Download PDF
Your contact: +49 - 212 8804-0 • info@reo.de

NPT 892

Single-phase DC test choke

NPT 892

Unique Selling Point


  • Adapted linearity, no saturation in the workspace
  • Several taps, just a few chokes instead of many are needed
  • Adjusted winding resistance, thereby reducing resistive loads
  • Designed for continuous load and short-term exposure
  • Optimizing weight and dimensions, lower costs
  • High voltage, standard up to 1000V

Description


Switches must be pass many different tests during the approval phase. Some of these tests involve the switching behavior under different load conditions, the switch is tested on nominal load, overload and at many cos?. Additionally the switch will be checked on switch on and switch off procedures. The paramters must be everytime the same during this tests.

In the past, air chokes were used as inductive loads, since these do not saturate. Air chokes are larger and have a stronger leakage field than comparable core chokes with corresponding magnetic energy.

  • Insulation class: F bei 40° C Umgebung
  • Climatic categorie: 25/085/21 DIN IEC 68 Teil 1
  • Max. winding temperature: 140° C
  • Cooling: AF
  • Protaction rating: IP 00


Technical Data


  • Nominal Voltage : 24 V
  • Rated current : 0,2 - 4 A
  • Inductance : 160 - 125000 mH

Circuit example

Your contact: +49 - 212 8804-0 • info@reo.de

NPT 892

Single-phase DC test choke

Technical data

Type

Rated voltage
[V]

Rated current
[A]

Inductance
[mH]

DC resistance
[Ω]

Power loss
[W]

NPT 892/0,2

24
50/60 Hz

0,2

125.000

197,3

20

NPT 892/2

2

1.200

2,855

-

NPT 892/4

4

160

2,8

64

 

 

 

Dimension drawings

 

 

Dimensions

Type

L
[mm]

B
[mm]

H
[mm]

N1
[mm]

N2
[mm]

⌀D1
[mm]

Copper
[kg]

Weight
[kg]

NPT 892/0,2

200

148

261

124

120

10x18

6,2

24,0

NPT 892/2

240

168

375

144

140

10x18

18,0

44,0

NPT 892/4

280

173

417

176

143

13x20

4,4

38,0