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

NTT MD 953

Liquid-cooled three-phase mains choke 8% Uk

NTT MD 953

Unique Selling Point


  • Protection class up to IP 65
  • Longer lifetime
  • Optimal heat dissipation
  • Suitable for railway applications

Description


Watercooled chokes are available are available with ingress protection ratings IP00 to IP65. REO can utilise several methods of water cooling these components. This provides controlled conduction of heat losses, ensuring that the local environment is not heated. Water cooling ensures that component temperatures are greatly reduced, reducing component stress and increasing product life. REO technology provides excellent heat distribution, preventing the emergence of so-called hot spots.

  • Winding material : Aluminum
  • Insulation class: F
  • Cooling medium: Water/Glycol (70/30 %)
  • Max. coolant inlet temperature.: 50° C
  • Flow rate: min. 3,6 l/min.
  • Pressure drop: <0,5 bar

 

Typical applications

  • AFE Drives


Technical Data


  • Nominal Voltage : 400 V
  • Rated current : 200 - 1200 A
  • Inductance : 0,012 - 0,074 mH
Your contact: +49 - 212 8804-0 • info@reo.de

NTT MD 953

Liquid-cooled three-phase mains choke 8% Uk

 

Technical data

Type

Rated voltage
[V]

Rated current
[A]

Uk

Linear
up to

Inductance
[µH]

R20
[mΩ]

Windings weight
 [kg]

NTT MD 953/200

3 x 400
(optional 3x690)

200

8%

300

74

2,1

7

NTT MD 953/400

400

600

37

0,96

11

NTT MD 953/600

600

900

25

0,49

15

NTT MD 953/800

800

1200

18

0,4

19

NTT MD 953/1000

1000

1500

15

0,3

18

NTT MD 953/1200

1200

1800

12

0,18

32

 

 

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

NTT MD 953

Liquid-cooled three-phase mains choke 8% Uk

 

Dimension drawings

 

Dimensions

Type

A
[mm]

B
[mm]

C
[mm]

Weight
[kg]

Braced

NTT MD 953/200

380

320

250

70

NTT MD 953/400

390

380

260

95

NTT MD 953/600

420

505

325

140

NTT MD 953/800

530

550

295

175

NTT MD 953/1000

510

590

335

225

NTT MD 953/1200

530

675

335

260

Unbraced

NTT MD 953/200

380

312

250

68

NTT MD 953/400

390

372

260

93

NTT MD 953/600

420

478

325

133

NTT MD 953/800

530

523

295

168

NTT MD 953/1000

510

563

335

218

NTT MD 953/1200

530

646

335

253