Slip Rings type SMART PRE

The Slip Ring PRE Smart, in order to satisfy the needs of the users. One of the main peculiarities of the new PRE Smart is the possibility to open a section of the external case, in order to monitor the perfect conditions inside the Slip Ring.
Thanks to this unique detail, maintenance time and costs can be reduced, providing significant advantages to the consumer.

Provided with a free internal hole, which allows the passage of tubes for liquids, shafts or wires, PRE Smart is available in modular executions from 20A, 30A or 50A, as well as in mixed executions with up to 50A for signal combined versions.
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Main Features


  • Housing In thermoplastic insulating material
  • Inside Passage 42 mm diameter through steel pipe for the passage of hoist cables, fluid cables, and piston stems
  • Positioning Vertical axis with threaded pipe
  • Cable entry Through M20 cable glands on the lower and upper flange. Inside terminal board for rings connection
  • Brushes 20A copper-graphite brushes, 30A blade or copper- graphite and50A blade or copper-graphite
  • Executions Versions in unique compositions 20A, 30A or 50A

Electrical Features


  • Nominal voltage 660V ac - dc
  • Nominal current 20A - 30A - 50A
  • Protection degree IP52
  • Max rotating speed 30 revs / min
  • Test voltage 2,5 kV
  • Operating temperature -20°C | +60°C

Availability on demand:
  • More radial or axial cable glands for brushes
  • Signal versions with silver rings
  • Long life versions

Regulations


EC:
  • 2014/35/UE
  • 2014/30/UE
  • 2006/42/UE
  • RoSH 2011/65/UE

Rules:
  • EN 60947-1
  • EN 60529

Standard Types


20A

Type

30A

Type

50A

Type
H=mm*
G PRE2 B4----230
G PRE2 B8G PRE1 C4L--260
G PRE2 B12G PRE1 C6LG PRE1 D4L290
G PRE2 B16G PRE1 C8L--320
G PRE2 B20G PRE1 C10L--350
G PRE2 B24G PRE1 C12LGPRE1D8L380
G PRE2 B28G PRE1 C14L--410
G PRE2 B32G PRE1 C16LG PRE1 D12L440
G PRE2 B36G PRE1 C18L--470
--G PRE1 C20L--500
--G PRE1 C22L--530
--G PRE1 C24L--560

Only for 30A and 50A executions, please omit the final "L" of the code if you need copper-graphite brushes
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