{
  "id": 1,
  "title": "BK Standard-Type Control Transformers",
  "family": "Industrial Control Transformers",
  "description": "Single-phase standard control transformers for machinery and auxiliary supplies.",
  "sections": [
    {
      "heading": "Overview",
      "paragraphs": [
        "Developed from domestic and international BK control transformers and the advantages of comparable overseas products. The manufacturer describes independently developed terminals using advanced connection methods, a neat appearance, good performance, reliable operation, low energy consumption, compact dimensions, safe wiring and broad suitability. The brochure states that this BK design obtained a Chinese national patent; no patent number is provided on this product page."
      ]
    },
    {
      "heading": "Applications",
      "paragraphs": [
        "For AC circuits at 50/60 Hz with a rated supply voltage not exceeding 1000 V. Applications include machine-tool and mechanical-equipment control circuits, task lighting, signalling and small auxiliary power supplies."
      ]
    },
    {
      "heading": "Model designation",
      "paragraphs": [
        "B: transformer; K: control; 1: design sequence; suffix: rated capacity in VA."
      ]
    }
  ],
  "specifications": [],
  "models": [],
  "tables": [
    {
      "caption": "Overall and mounting dimensions",
      "columns": [
        "Model",
        "Bmax",
        "Dmax",
        "Emax",
        "A ±0.4",
        "C ±1.5",
        "Mounting hole K",
        "Mounting hole J"
      ],
      "rows": [
        [
          "BK-50VA",
          "77",
          "75",
          "75",
          "56",
          "57",
          "5",
          "9"
        ],
        [
          "BK-100VA",
          "86",
          "85",
          "85",
          "64",
          "67",
          "6",
          "10"
        ],
        [
          "BK-160VA",
          "96",
          "89",
          "95",
          "84",
          "70",
          "6",
          "10"
        ],
        [
          "BK-200VA",
          "96",
          "104",
          "95",
          "84",
          "85",
          "6",
          "10"
        ],
        [
          "BK-250VA",
          "96",
          "104",
          "95",
          "84",
          "85",
          "6",
          "10"
        ],
        [
          "BK-300VA",
          "120",
          "100",
          "115",
          "90",
          "82",
          "7",
          "12"
        ],
        [
          "BK-400VA",
          "120",
          "105",
          "115",
          "90",
          "87",
          "7",
          "12"
        ],
        [
          "BK-500VA",
          "120",
          "117",
          "115",
          "90",
          "99",
          "7",
          "12"
        ],
        [
          "BK-630VA",
          "150",
          "114",
          "140",
          "122",
          "91",
          "8",
          "16"
        ],
        [
          "BK-1000VA",
          "150",
          "134",
          "140",
          "122",
          "111",
          "8",
          "16"
        ],
        [
          "BK-1500VA",
          "162",
          "135",
          "155",
          "119",
          "116",
          "",
          ""
        ],
        [
          "BK-2000VA",
          "192",
          "130",
          "185",
          "160",
          "100",
          "9",
          "22"
        ],
        [
          "BK-2500VA",
          "192",
          "140",
          "185",
          "160",
          "110",
          "9",
          "22"
        ],
        [
          "BK-3000VA",
          "192",
          "150",
          "185",
          "160",
          "120",
          "9",
          "22"
        ]
      ]
    }
  ],
  "notes": [
    "The BK-1500VA mounting-hole K and J cells are blank in the brochure."
  ],
  "slug": "bk-control-transformers",
  "category": "industrial-transformers",
  "categoryTitle": "Industrial Transformers",
  "relatedCategories": [],
  "image": "/catalog/products/bk-control-transformers.webp",
  "href": "/products/series/bk-control-transformers",
  "pdfPage": 4,
  "side": "right",
  "sheet": "/catalog/sheets/04-right.webp",
  "sheetWidth": 1007,
  "sheetHeight": 1375
}