JBK3 series control transformers are designed for use in circuits with an AC frequency of 50–60Hz and an input voltage not exceeding 660V. They serve as control power sources for various machine tools, mechanical equipment, and general electrical devices, as well as power supplies for local lighting and indicator lights.
This series of transformers is an upgraded replacement for other control devices, manufactured using imported materials and advanced production techniques. They feature reliable performance, low energy consumption, compact size, safe wiring, and broad .
Type Designation
Operating Conditions
Temperature Range: -5°C to +40°C (24-hour average ≤ +35°C).
Altitude: Up to 2000m above sea level.
Humidity:
≤50% RH at +40°C (higher humidity permitted at lower temperatures).
In humid conditions: Max. 90% RH (monthly average), with a minimum monthly average temperature of +25°C.
Outline and Installation Dimensions
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