Product Overview

Used for 1250A/2500A/40.5kV series SF₆ cabinet direct-acting three-position switch, capable of electric and manual operation.

Performance Features

Both manual and electric operating mechanisms can switch the three-position switch (isolation, opening, grounding).

Independent operation holes for isolation and grounding, completely preventing misoperation.

The mechanism provides multiple over-travel automatic protection functions for the three-position switch.

Available in standard and high-protection versions; high-protection version IP rating up to IP55.

Low noise, smooth operation, compact structure, high reliability, low maintenance.

Input stroke based on three-position switch: –12 to +12 turns or –13 to +13 turns; single stroke (close→open or open→close) action; manual input turns 12 or 13, output 24 or 26 turns.

Reliable auxiliary contact switching with multiple contacts; isolation and opening positions can be configured with 10NO/10NC, opening position with 9NO/9NC.

Operating Environment

Ambient air temperature: Maximum +60°C; Minimum –40°C

Altitude: ≤4,000m

Seismic intensity: ≤8 degrees

Relative humidity: Daily average ≤95%; Monthly average ≤90%

Installation site: Free from fire, severe pollution, corrosion, or violent vibration