Three phase short-circuiting device for the terminals of electrical motors 0,4 kV or 6 kV

Three phase short-circuiting device for the terminals of electrical motors 0,4 kV or 6 kV


Category:

 

Code: Msp – M – 3xSf/lf – Sp/lp – S/p  

The three phase short-circuiting device can be fixed to the terminals of electrical motors.
The ends of phase cables are provided with copper terminals (lugs) which can be easily tightened to the terminals of the motors. A set of fasteners (screw, nut, split-lock washer) is attached to each copper terminal.

Technical characteristics

Earthing Sp and short-circuiting Sf cable sections  (mm2)

16

25

35

50

70

95

120

Nominal short-circuiting current for t = 1s Isc (kA)

3,5

6

8

12

16

20

30

Nominal peak currrent for t = 0,02 s Isd (kA)

8,75

15

20

30

40

50

75

Testing short-circuiting current for t = 1s Itest (kA)

4,6

6,9

9,2

13,8

18,4

23

34,5

Testing peak current for t = 0,02 s Ipeak (kA)

11,5

17,25

23

34,5

46

57,5

86,25

Peak factor (SR EN 61230)

2,5

Short-circuiting cable length If (m)

max. 2,5

Earthing cable length Ip (m)

max. 7

Preferential dimension of the assembly elements

M8

M8

M10

M10

M10

M12

M12

Optional dimensions of the assembly elements (mm)

M10

M10

M8

M12

M8

M12

M8

M12

M10

M16

M10

M16

 This equipment contains the following components:
– Copper terminals (lugs) with fasteners (hexagonal screw, split-lock washer, screw nut) – 3 pieces
– Phase cable – 3 pieces
– Earthing cable – 1 piece
– Earthing clamp – 1 piece

This equipment is delivered in a carrying bag or a transport case.