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  5. Single-phase / three-phase short-circuiting devices - lightweight universal phase clamp with insulated handle- type CCRU/B or CCNU/B

Single-phase / three-phase short-circuiting devices – lightweight universal phase clamp with insulated handle- type CCRU/B or CCNU/B


SKU: Msp CCRU/B Sp/lp - S/O/P/p; Msp CCNU/B Sp/lp - S/O/P/p; Msp CCRU/B - 3xSf/lf - Sp/lp - S/P/p; Msp CCNU/B - 3xSf/lf - Sp/lp - S/P/p
Category:

Application: by mounting the clamp on the conductor/bar, followed by the tightening of the driving screw of the clamp with an insulated handle.

Constructive types: single-phase or three-phase.

Types of phase-clamps:

  • Lightweight universal classic reduced clamp with insulated handle (CCRU/B)
  • Lightweight universal classic normal clamp with insulated handle (CCNU/B)

Components:

The single-phased short-circuiting device consisting of:

  • Phase clamp – 1 piece
  • Earthing cable – 1 piece
  • Manual earthing clamp – 1 piece

The three-phase short-circuiting device consisting of:

  • Phase clamp – 3 pieces
  • Short-circuiting cable – 3 pieces
  • Earthing cable – 1 piece
  • Manual earthing clamp – 1 piece

Packing: waterproof bag.

Technical characteristics Value
Clamp type CCRU/B YES YES YES YES NO YES
Clamp type CCNU/B YES YES YES YES YES YES
Rated operating voltage  Un (kV) max 1
Earthing cable cross-section Sp (mm2) 16 25 35 50 70 95
Nominal short-circuit current for  t = 1s Isc (kA) 4 6.25 8.75 12.5 17.5 23.75
Shock (peak) nominal current for  t = 0,02 s Isd (kA) 10 15.63 21.9 31.25 43.5 59.38
Test short-circuit current for  t = 1s (kA) 4.6 7.2 10.06 14.38 20.13 27.31
Test shock (peak) current for  t = 0,02 s (kA) 11.5 17.79 25.16 35.94 50.31 68.3
Power factor (according to SR EN 61230) 2.5

 

Phase clamp type CCRU/B CCNU/B
Short-circuiting cable length lf (m)- three-phase short-circuiting device max. 2,5 max. 2,5
Earthing cable length lp (m) – single-phase / three-phase short-circuiting device max. 10 / max. 7,5 max. 10 / max. 7,5
Thickness of the flat bar where the phase clamp can be connected g (mm) max. 30 max. 45
Diameter of the sphere-type coupling piece Sf (mm) 25 20 / 25
Diameter of the conductor where the phase clamp can be attached øD (mm) 4 ÷ 30 4 ÷ 36

Components:

The single-phased short-circuiting device includes the following components:

  • Phase clamp – 1 piece
  • Earthing cable – 1 piece
  • Manual earthing clamp – 1 piece
  • The three-phase short-circuiting device includes the following components:
  • Phase clamp – 3 pieces
  • Phase cable – 3 pieces
  • Earthing cable – 1 pieces
  • Manual earthing clamp – 1 piece

The three-phase short-circuiting device includes the following components:

  • Phase clamp – 3 pieces
  • Phase cable – 3 pieces
  • Earthing cable – 1 pieces
  • Manual earthing clamp – 1 piece