LV switchgears types RNM-2, NGWR

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Purpose

 ELEKTROBUDOWA'S Low Voltage switchgears are operating in all industries as main, subdistribution boards or controlgears in TN-S, TN-C-S, TN-C, TT, IT.

Application

ELEKTROBUDOWA SA'S indoor switchgears are assembled from elements produced in series in CNC machining centers. Construction parts are made of high quality corrosion-resistant materials with electrolytic surface and powder coatings. Main features:

  • air-insulate,
  • up to IP 55,
  • stationary, wall-mounted or free-standing,
  • configurable size of withdrawable units from m1/4 to m3 (height = 200 mm) for RNM-2 and from W04 to W4 (height = 125 mm) for NGW R,
  • 10 levels of withrawable units to be adapted in RNM-2 and 16 levels in NGW R with standard heights or more after consultation,
  • compartments separation in accordance to PN-EN 61439-1:2011 up to 4b,
  • multiplication of main busbar system (1, 2 or 3),
  • various possible locations of switch operators (on the door, behind the door),
  • possibility of implementing doors with glass window,
  • feeder cables connected by connection bar or in a different way after consultation,
  • possibility of implementing compensation cabinets,
  • outgoings earthing during replacements in operating switchgear provided by special earthing units,
  • each assembly type tested (TTA),
  • possibility of implementing additional protection from effects of an arc.

General characteristics

  • highest quality product of European producer,
  • can be equipped with switching, protective, regulating, measuring, control and signaling devices of various producers,
  • easy access to devices and simple operating,
  • easy replacement or addition of functional units,
  • long-lasting operation,
  • minimal needs of maintenance and inspections frequency,
  • minimal spread of arc due to partitioning each cubicle into separated compartments,
  • short time of delivery,
  • environmental-friendly production and operation,
  • withdrawable, plug-in and fixed units can be implemented in the same cubicle,
  • professional manufacturer's service,
  • adjustment the switchgear to Customer's individual needs.

Features

  • highest quality product of European producer,
  • can be equipped with switching, protective, regulating, measuring, control and signaling devices of various producers,
  • easy access to devices and simple operating,
  • easy replacement or addition of functional units,
  • long-lasting operation,
  • minimal needs of maintenance and inspections frequency,
  • minimal spread of arc due to partitioning each cubicle into separated compartments,
  • short time of delivery,
  • environmental-friendly production and operation,
  • withdrawable, plug-in and fixed units can be implemented in the same cubicle,
  • professional manufacturer's service,
  • adjustment the switchgear to Customer's individual needs.

Positions of withdrawable part in switchgear type RNM-2

removed positiondisconnected position (isolated position)test positionconnected position

Positions of withdrawable part in switchgear type NGW R

removed positiondisconnected position (isolated position)test positionconnected position

Technical data

Type of the switchgear RNM-2 NGW R-1 NGW R-18 NGW R-2
Rated voltage V up to 690 up to 690
Rated isolation voltage V up to 1000 up to 1000
Power frequency withstand voltage kV 3,5 3,5
Rated impulse withstand voltage kV 8 8
Rated impulse withstand voltage of isolation kV 12 12
Rated continous current:      
horizontal busbars
supplying and receiving blocks
distribution busbars of a segment
A
A
A
up to 5000
up to 5000
up to 1200
up to 7500
up to 6300
up to 1600
630
up to 250
-
up to 3200
up to 3200
up to 1600
Rated short-time withstand current kA up to 90 up to 105 up to 31,5 up to 100
Rated peak withstand current kA up to 200 up to 231 up to 80 up to 220
Internal arc withstand current kA/s up to 50/0,5 up to 100/0,3
Rated frequency Hz 50/60 50/60   
Degree of protection   up to IP 54 up to IP 42 up to IP 55
Mechanical strength degree     IK 10
Dimensions of cubicles:          
width
height
depth
mm
mm
mm
400 ÷ 1200
2200
600 ÷ 1000
400 ÷ 1000
2150
400 ÷ 1150
400 ÷ 1000
2150
250 ÷ 400
400 ÷ 1000
2150
250 ÷ 1150
Compliance with standards   PN-EN 61439-1; PN-EN 61439-2

Functional compartments:

Switchgear type NGW R  Switchgear type RNM-2 

Product card in pdf format LV switchgears types RNM-2, NGWR plik .pdf

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