English
Español
Structure and performance
The GN38-12D lower isolating switch has a novel structure and is a new type of isolating switch independently developed by the company. The dynamic and static contacts are installed on two mutually perpendicular insulators, and the static contacts can be installed horizontally or vertically as required, and the dynamic contact is directly driven by the driving spindle. The head rotates to realize the opening and closing and grounding, with small installation space and convenient busbar connection. The fracture is obvious, and it is suitable for various side-mounted high-voltage cabinets. It can be driven by the BET-type mechanism through the crank arm, or the operating mechanism can directly Operation, the ground contact can be installed at the opening position to achieve protective grounding.
Technical Parameters
| Model Specifications | GN38-12/630 | GN38-12/1250 | GN38-12/1600 | |
| GN38-12D/630 | GN38-12D/1250 | GN30-12D/1600 | ||
| Rated voltage (kV) | 12 | |||
| Rated current (A) | 630 | 1250 | 1600 | |
| 4s short-time withstand current (kA) | 20 | 31.5 | 80 | |
| Rated peak withstand current (kA) | 50 | 80 | 80 | |
| Rated insulation level | Lightning impulse voltage (kV) | Phase-to-phase, relative to ground 75, fracture 85 | ||
| 1min power frequency withstand voltage (kV) | Phase, relative to 42, fracture 48 | |||
Installation Dimensions
> How Does an SPD Surge Protective Device Clamp Transients?
An SPD Surge Protective Device in the XZ-NPE series uses spark-gap technology to clamp neutral-to-earth transients at 275V, with 20kA/40kA ratings and a <25ns respon...
> How Does a Metal Distribution Box Protect UK Circuits?
A Metal Distribution Box like the CJDB series protects circuit breakers in UK consumer units with 100A rating, IP3X safety, and 4-way to 22-way configurations.
> Is an SPD Surge Protective Device Rated for 80kA Imax?
An SPD Surge Protective Device with 5-80kA discharge capacity, built-in disconnector, and visual status window — built for low-voltage distribution system protection...
> Does a Float Switch Need IP68 for Hot Water?
A Float Switch with IP68 sealing, AC 220V rating, and 60°C water temperature tolerance — built for reliable liquid level control in pumps and tanks.