NDK(BK) series control transformer is based on the domestic BK series control transformer, using advanced technology and rigorous design, and selecting foreign advanced methods of wiring terminals, with good performance, reliable operation, low energy consumption, small size, safe wiring, wide applicability and other characteristics, under rated load can work for a long time, is an ideal transformer power source.
The NDK(BK) series control transformer is designed for 50 Hz/60 Hz AC circuits and is used as a control power source, local lighting, and indicator power in machine tools and mechanical equipment. It offers reliable operation, low power consumption, compact size and safe wiring.
The document provides model meanings, normal operating conditions, installation dimensions, and ordering information, including rated capacity, voltage options, and environmental limits such as altitude, temperature and humidity. This manual is written in Chinese.
| Rated capacity | 100 VA |
|---|---|
| Frequency | 50 Hz |
| Rated input voltage | 380 V |
| Rated output voltage | 110 V (70 VA) / 24 V (30 VA) |
| Primary voltage options | 220 V, 380 V or as required |
| Secondary voltage options | 6 V, 12 V, 24 V, 36 V, 110 V, 127 V, 220 V, 380 V or as required |
| Installation size (A×C) | 62.5 mm × 50 mm (example for 25 VA) |
| Installation hole size (K×J) | 5 mm × 8 mm (example for 25 VA) |
| Maximum altitude | 2000 m |
| Maximum ambient temperature | +40 °C |
| Minimum ambient temperature | -25 °C |
| Maximum relative humidity | 95 % |
It can operate reliably up to an altitude of 2000 m.
The rated input voltage is 380 V.
Primary voltage can be 220 V, 380 V, or a value specified by the user.