High Voltage AC SF6 Porcelain Post Circuit Breaker

No.

Name

Unit

LW9-40.5

LW9-72.5
LW9A-72.5

LW/25-126/145
LW25D-126/145
LW25☐-126/145

LW25-170 I
LW25-170 III

1

Rated Voltage

kV

40.5

72.5

126/145

170

2

Rated Current

A

3150/4000

3150/4000

2000,3150,4000

4000

3

Rated Short-Circuit Breaking Current

kA

50

31.5/40/50

31.5/40

40

4

Operating Mode

Three-pole mechanical linkage

Three-pole mechanical linkage

Three-pole mechanical linkage
(LW25D is three-phase electrical linkage)

Three-pole electrical linkage
(LW25-170III is three-pole mechanical linkage)

Remarks

LW25 ☐ is a dedicated circuit breaker for capacitive/inductive load switching