Normal working and installation conditions

◆ Installation location: indoor.
Environmental temperature: -5 ℃~+40 ℃, with a daily average not exceeding+30 ℃.
◆ Altitude: not exceeding 1000m.
◆ Atmospheric conditions: When the maximum temperature is+40 ℃, the relative humidity of the air does not exceed 50%. At lower temperatures, the relative humidity is allowed to not exceed 80%.
◆ There is no severe pollution in the atmosphere, and there are no gases or conductive dust in the medium that can corrode metals and damage insulation.
There should be no severe vibration or bumps at the installation site.
The installation site is not directly exposed to sunlight, and there is no rain or snow erosion or severe mold presence.

Ordering Instructions

When placing an order, users need to provide the following information:
Product model and window width;
Rated current ratio;
Rated output and corresponding accuracy level;
For example, ordering an SDH-0.66 transformer with a window width of 40mm, a rated current ratio of 200/5A, a rated output of 5VA, and an accuracy level of 0.5.
The order code is SDH-0.66,40 200/5A 5VA Grade 0.5.
If there are special requirements, customization can be negotiated with the manufacturer.