Machine Tool Control Transformers mainly include the JBK3 series, JBK4 series, JBK5 series, BK series, and BKC series.
Ambient air humidity: -5℃ to +40℃, with a 24-hour average not exceeding +35℃.
Installation location altitude not exceeding 2,000 meters.
The relative humidity in the atmosphere does not exceed 50% when the surrounding air humidity is +40℃; higher relative humidity is permissible at lower temperatures. The average humidity in the wet month is 90%, with an average low temperature of +25℃ during that month, taking into account condensation on the product surface due to temperature changes.
