Characteristics of VM/ND series

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      You can also contact us directly at:

      Teléfono: +34 94 453 10 61

      Email: elec@nafsa.es

      Fax: +34 94 625 01 51


      Protection rate: IP65

      Insulation class: Y (90ºC)

      Standard voltage: 24 Vdc

      Standard duty cycle: see chart

      Supply possibilities: Flying leads for every size:

      • VM20/ND, VM30/ND, VM40/ND: 1×0.25 mm²
      • VM50/ND, VM65/ND, VM100/ND: 1×0.5 mm²
      • VM150/ND: 2×0.75 mm²

      Other voltage, ED and sizes: Inquiry

      Documents:

      Downloads:

      Description

      The attraction and holding of the magnetic pieces are made by permanent magnets mounted in the solenoid. With these kind of products, we avoid the risk of load falling due to sudden power supply failure. The power supply on the coil allows to loose the load, when this power supply stops, the product recovers its initial force. When working with hanged loads norms must be respected.

      SizeP at 20°C (W)ED (%)Minimum pulse time (ms)Minimum resting time (ms)Thickness of the piece to be hold (mm)Airgap (mm)Dimensions (mm)Weight (kg)
      00.20.5
       Magnetic force Fm (N)øA(-0.3)BC±0.1DE
      VM20/ND102024 180
      1
      3
      10
      22
      39
      39
      7
      7
      7
      1.7
      1.7
      1.7
      20M-3255260.04
      VM30/ND2520110 825
      1
      3
      10
      46
      181
      181
      34
      74
      74
      22
      22
      22
      30M-432.5635.20.13
      VM40/ND421575 743
      1
      3
      10
      51
      205
      270
      36
      89
      89
      23
      38
      38
      40M-541.7642.70.28
      VM50/ND4815120 1188
      1
      3
      10
      60
      304
      607
      41
      200
      225
      34
      95
      110
      50M-542.8652.50.45
      VM65/ND8015225 2228
      1
      3
      10
      70
      374
      1220
      50
      340
      750
      40
      260
      400
      65M-845.58670.74
      VM100/ND
      7525150 1500
      1
      3
      10
      83
      421
      2205
      61
      365
      1254
      49
      338
      686
      100M-1067101023.00
      VM150/ND7740285   1070
      1
      3
      10
      78
      615
      2254
      46
      475
      1490
      32
      401
      1100
      150M-1665151527.10

      Terminales libres

      Flying leads VM/ND Serie

      IMPORTANT: THE CLAMPING SCREW DOES NOT TO EXCEED MEASURE D

      The table gives for each type of holding magnet, the values of the minimum pulse time and resting time measured in the following conditions:

      • With a weight of 5% of the maximum magnetic force made by each model.
      • Coil working on its regime temperature.

      The data shown in the chart are the Magnetic Force (Fm) values depending on the air gap, measured in the following conditions:

      • No power supply.
      • Flat piece (3 µm rugosity) in AºSt37 and thickness as shown.
      • Room temperature 35ºC.

      The dimensions of the pieces used in the test are similar or bigger than the attraction face of the different holding electromagnets. At different conditions the magnetic force (Fm) may decrease. The value of the magnetic remanence after the power supply stops is 5% of the holding force.

      Under demand an internal protection can be added to the coil to protect it of the overheating, generated by the no respecting of the times given by the duty cycles, this overheating can demagnetize the internal magnet or destroy the coil cahnging the proper working of holding magnet.

      When lifting or handling heavy loads a minimun security margin of 3 must be respected, the weight of the load cannot exceed 33% of the magnetic force.

      Download the technical information of this product