Product overview

GNF38-12 indoor high-voltage disconnector is a miniaturized switchgear specially designed for compact box-type switchgear. It has a three-station structure, a fully insulated bottom plate and a perfect mechanical interlocking mechanism, and is suitable for fixed high-voltage cabinets and ring network cabinets. ‌

Rated parameter

Rated voltage: 12kV

Rated current: 630a-1250a

Thermal stability current (4s): 25ka-31.5ka.

Dynamic stable current: 63ka-80ka

Insulation level: power frequency withstand voltage (1min) 42kV/48kV interphase/break, lightning impulse withstand voltage interphase/break 75kV/85kV.

Applicable environment

Working temperature range: -25℃~+40℃

Relative humidity: daily average ≤95%, monthly average ≤90%.

Altitude: ≤2000m

No violent vibration

Product features

Coaxial locking and mechanical interlocking mechanism are adopted to ensure operation safety.

Compact shape, suitable for the design requirements of miniaturized switchgear.

Model decoding

GN: indoor isolating switch

F: Fractional Step Operation

38: Design serial number

12: Rated voltage (kV)

Functional breakthrough

Visible fracture+small current breaking capacity (capacitive current ≤0.5A)

It is forbidden to operate the main circuit with load!

Typical application

Bus isolation of 12kV central cabinet (KYN28A-12) and load switching of ring network cabinet (adapted to SF6 inflatable cabinet transition scheme)