DH1(VS1)-12(24) Handcart Series (Isolation Truck, Fuse Truck, PT Truck, Metering Truck)

General Description

It shares the same overall dimensions as VS1, featuring convenient operation, simplicity and high reliability. This circuit breaker adopts an integrated design of operating mechanism and breaker main body. It can be used as a fixed‑mounted unit, or fitted with a dedicated propulsion mechanism to form a handcart unit.

Environmental Conditions

• Ambient air temperature: upper limit +40 °C, lower limit ‑15 °C
• Altitude: ≤1000 m (For higher‑altitude applications, the rated insulation level shall be increased accordingly)
• Seismic intensity: not exceeding Grade 8
• Relative air humidity: daily average value ≤95 %, monthly average value ≤90 %
• Places free of fire, explosion hazards, severe contamination, chemical corrosion and violent vibration.