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DISTRIBUTION AIR BREAK SWITCHES

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Cat No.:

Description
  • Pole mounted disconnectors up to 52kV.
  • Available in off load and load break.
  • Available in single pole or H-pole mounting.
  • Silicone insulators.
  • Eskom SA approved.
  • Pull to open / Pull to close.

 

Characteristics

Value

Applicable standards

IEC 62271-102, IEC 60265

Rated voltage

24kV

36kV

Impulse withstand voltage Phase-Earth

125kV

170kV

Impulse withstand voltage over isolating distance

145kV

195kV

Power frequency voltage 1 min wet, Phase-Earth

50kV

70kV

Power frequency voltage 1 min wet, over isolating distance

60kV

80kV

Rated frequency

50 - 60Hz

50 - 60Hz

Rated current *)

630A

630A

Short time current

25kA

25kA

Duration of short time current

3 sec.

3 sec.

Peak withstand current

62,5kA

62,5kA

Making capacity

5kA

3kA

Interupting capacity with the loadbreak heads of mainly active load at rated voltage and co =0,7

630A

400A

Interupting capacity with the loadbreak heads of mainly active load at rated voltage and co =0,15 capacitive

25A

16A

Interupting capacity with the loadbreak heads of mainly active load at rated voltage and co =0,15 reactive

16A

4A

Ringinterupting capacity with the loadbreak heads of mainly active load at rated voltage and co =0,3 reactive

400A

400A

Interupting capacity with breaking whip of mainly active load at rated voltage and co =0,3 reactive

25A

16A

Interupting capacity with breaking whip of cable and line changing currents at rated voltage

15A

10A

Permissable ice load

Up to 20mm

Mechanical endurance

>2000 operations

Temperature range

-50°C to +50°C

Insulator material

Porcelain, silicon rubber,

Outdoor epaxy resin

Insulator creepage distance

Various of different insulators

 

More about EBM

Eberhardt-Martin (EBM) was founded in 1967 to bring innovative and cost effective products to the electrical industry. Since its inception Eberhardt-Martin has been at the forefront of innovation...

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